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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

(MARK ONE)


☒	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2025


☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______________ to ______________

Commission File number 0-23621

MKS INC.

(Exact Name of Registrant as Specified in Its Charter)


Massachusetts		04-2277512
(State or other Jurisdiction of		(I.R.S. Employer
Incorporation or Organization)		Identification No.)


2 Tech Drive, Andover, Massachusetts		01810
(Address of Principal Executive Offices)		(Zip Code)

(978) 645-5500

(Registrant’s Telephone Number, including area code)

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, no par value	MKSI	Nasdaq Global Select Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.


Large accelerated filer	☒	Accelerated filer	☐	Emerging growth company	☐
Non-accelerated filer	☐	Smaller reporting company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Aggregate market value of the voting and non-voting common equity held by nonaffiliates of the registrant as of June 30, 2025 based on the closing price of the registrant’s common stock on such date as reported by the Nasdaq Global Select Market: $6,672,873,031.

Number of shares outstanding of the issuer’s common stock, no par value, as of February 17, 2026: 67,248,357.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the definitive Proxy Statement for our 2026 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission no later than 120 days after the close of our fiscal year ended December 31, 2025, are incorporated by reference into Part III of this Annual Report on Form 10-K.

TABLE OF CONTENTS


Special Note Regarding Forward-Looking Statements		2
Summary of Risk Factors		3
PART I
Item 1.	Business	5
Item 1A.	Risk Factors	12
Item 1B.	Unresolved Staff Comments	35
Item 1C.	Cybersecurity	36
Item 2.	Properties	37
Item 3.	Legal Proceedings	38
Item 4.	Mine Safety Disclosures	38

PART II
Item 5.	Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	39
Item 6.	Reserved	40
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	41
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	61
Item 8.	Financial Statements and Supplementary Data	63
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	108
Item 9A.	Controls and Procedures	108
Item 9B.	Other Information	109
Item 9C.	Disclosure Regarding Foreign Jurisdictions that Prevent Inspections	109

PART III
Item 10.	Directors, Executive Officers and Corporate Governance	110
Item 11.	Executive Compensation	110
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	110
Item 13.	Certain Relationships and Related Transactions and Director Independence	110
Item 14.	Principal Accountant Fees and Services	110

PART IV
Item 15.	Exhibits and Financial Statement Schedules	111
Item 16.	Form 10-K Summary	115

SIGNATURES		117

Special Note Regarding Forward-Looking Statements

This Annual Report on Form 10-K contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 regarding the future financial performance, business prospects and growth of MKS Inc. (“MKS,” the “Company,” “our,” or “we”). These statements are only predictions based on current assumptions and expectations. Any statements that are not statements of historical fact (including statements containing the words “will,” “projects,” “intends,” “believes,” “plans,” “anticipates,” “expects,” “estimates,” “forecasts,” “continues” and similar expressions) should be considered to be forward-looking statements. Actual events or results may differ materially from those in the forward-looking statements set forth herein.

Among the important factors that could cause actual events to differ materially from those in the forward-looking statements that we make are the level and terms of our substantial indebtedness and our ability to service such debt; risks related to pursuing, completing, and/or failing to realize the benefits of acquisitions and other strategic transactions critical to our growth strategy; risks related to cybersecurity, data privacy and intellectual property; manufacturing and sourcing risks, including supply chain disruptions, component shortages and price increases, the use of limited, sole source and international suppliers, the relocation of manufacturing operations, and product defects; risks associated with doing business internationally, including geopolitical conflicts, trade compliance, trade protection measures, such as import tariffs by the United States and/or retaliatory actions taken by other countries, regulatory restrictions on our products, components or markets, particularly the semiconductor market, and unfavorable currency exchange and tax rate fluctuations; conditions affecting the markets in which we operate, including intense competition, rapid technological and market changes, dependence on new product development, the ability to anticipate and meet customer demand, fluctuations in capital spending in the semiconductor, electronics manufacturing and automotive industries, and fluctuations in sales to our major customers; disruptions or delays from third-party service providers upon which our operations may rely; risks associated with the attraction and retention of key personnel; potential fluctuations in quarterly results; volatility of stock price; risks associated with chemical manufacturing and environmental regulation compliance; risks associated with artificial intelligence (“AI”); financial and legal risk management; and the other important factors described in Part I, Item 1A of this Annual Report on Form 10-K. We are under no obligation to, and expressly disclaim any obligation to, update or alter these forward-looking statements, whether as a result of new information, future events or otherwise, even if subsequent events cause our views to change.

SUMMARY OF RISK FACTORS

Below is a summary of the principal factors that make an investment in MKS speculative or risky. This summary does not contain all of the information that may be important to you, and you should read the below summary in conjunction with the more detailed discussion of risks set forth under the heading “Risk Factors” in Part I, Item 1A of this Annual Report on Form 10-K.

Strategic Transaction Risks

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As part of our business strategy, we have consummated and may continue to pursue acquisitions and other strategic transactions, which may be challenging and costly to identify and complete, disruptive to our business and our management, and/or dilutive to stockholder value.

Financial Risks

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Our substantial consolidated indebtedness could adversely affect us, including by increasing our interest expense and decreasing our business flexibility.

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The terms of our Term Loan Facility, Revolving Facility and 2034 Notes (each as defined below) impose significant financial obligations and risks upon us, limit our ability to take certain actions, and could discourage a change in control.

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A material amount of our assets represents goodwill and intangible assets, against which we have recorded impairments in the past, and our net income may be significantly reduced by future impairments of these assets.

Risks Related to Cybersecurity, Data Privacy and Intellectual Property Protection

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We are exposed to risks related to cybersecurity and data privacy threats and incidents, such as the ransomware event we identified in February 2023, and we are subject to restrictions and changes in laws and regulations governing data privacy and data protection, any of which could have a material adverse effect on our business.

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Our proprietary technology is important to the continued success of our business. Our failure to protect this proprietary technology may significantly impair our competitive position.

Risks Related to Our Operations

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Supply chain disruptions and other manufacturing interruptions or delays have affected our ability to meet customer demand and have led to higher costs, while the failure to estimate customer demand accurately has resulted in excess or obsolete inventory, all of which has negatively impacted, and could in the future negatively impact, our business.

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Our dependence on sole and limited source suppliers and international suppliers has negatively impacted, and could continue to impact, our ability to manufacture products and systems.

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Our failure to successfully manage the transition of certain of our products to other manufacturing locations, the transition of certain of our products to or from contract manufacturers, and the transition of certain functions to centralized locations would likely harm our business, financial condition and operating results.

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Our products could contain defects, which would increase our costs and seriously harm our business, financial condition, operating results and customer relationships.

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Chemical manufacturing is inherently hazardous and could result in accidents that disrupt our operations or expose us to significant losses or liabilities.

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We outsource a number of services to third-party service providers, which decreases our control over the performance of these functions. Disruptions or delays at our third-party service providers could adversely impact our operations.

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The loss of net revenues from any of our major customers would likely have a material adverse effect on us.

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Key personnel have been, and may continue to be, difficult to attract and retain.

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Emerging issues related to the development, deployment, and use of AI, including generative AI, in our business could give rise to competitive disadvantages, reputational harm, legal or regulatory action, or other adverse impacts on our business.

Risks Related to Our Industries and Markets

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The semiconductor, electronics manufacturing and automotive industries we serve are characterized by periodic fluctuations in business activity that may cause a reduction in demand for our products.

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Many of the markets and industries we serve are highly competitive, are subject to rapid technological advancement, and have narrow design windows, and if we fail to introduce new and innovative products or improve our existing products, or if our products or the applications we invest in do not achieve widespread adoption, our business, financial condition and operating results will be harmed.

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We offer products for multiple markets and must face the challenges of supporting the distinct needs of each of the markets we serve.

Risks Related to Operating a Global Business

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We face significant risks associated with doing business internationally.

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We face significant risks associated with doing business in China in particular.

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Unfavorable currency exchange rate fluctuations may lead to lower operating results or may cause us to change customer pricing, which could result in reduced sales and losses.

Legal, Tax, Regulatory and Compliance Risks

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We are obligated to develop and maintain proper and effective internal control over financial reporting, and we previously identified a material weakness in our internal control over financial reporting and may discover additional material weaknesses in the future. Any failure to maintain the adequacy of this internal control may adversely affect our operating results, our stock price and investor confidence in our Company.

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If significant trade restrictions or tariffs on our products or components that are imported from or exported to certain countries, including, but not limited to, China, are initiated, continue or are expanded, our business, financial condition and operating results may be materially harmed.

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We are subject to international trade compliance regulations, and violations of those regulations could result in fines or trade restrictions, which could have a material adverse effect on us.

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Changes in tax rates or tax regulation or the termination of tax incentives could affect our operating results.

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Many of our products and customers are subject to numerous laws regulating the production and use of chemical substances, and some of our products may need to be reformulated or discontinued to comply with these laws and regulations.

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We are subject to environmental regulations. If we fail to comply with these regulations, our business could be harmed.

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We are exposed to various risks related to legal proceedings, including, for example, product liability claims, intellectual property infringement claims, regulatory claims, contractual claims and class action litigation, which if successful, could have a material adverse effect on our commercial relationships, business, financial condition and operating results.

Risks Related to Owning Our Common Stock

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Our quarterly operating results have fluctuated, and are likely to continue to vary significantly, which may result in volatility in the market price of our common stock.

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The market price of our common stock has fluctuated and may continue to fluctuate for reasons over which we have no control.

PART I

Item 1. Business

MKS Inc., formerly known as MKS Instruments, Inc. (“MKS,” the “Company,” “our,” or “we”), was founded in 1961 as a Massachusetts corporation. We enable technologies that transform our world. We deliver foundational technology solutions to leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. We apply our broad science and engineering capabilities to create instruments, subsystems, systems, process control solutions and specialty chemicals technology that improve process performance, optimize productivity and enable unique innovations for many of the world’s leading technology and industrial companies. Our solutions are critical to addressing the challenges of miniaturization and complexity in advanced device manufacturing by enabling increased power, speed, feature enhancement and optimized connectivity. Our solutions are also critical to addressing ever-increasing performance requirements across a wide array of specialty industrial applications.

Where You Can Find More Information

We file reports, proxy statements and other documents with the Securities and Exchange Commission (the “SEC”). Our SEC filings are available to you on the SEC’s website at http://www.sec.gov.

Our website is http://www.mks.com. We are not including the information contained in our website as part of, or incorporating it by reference into, this Annual Report on Form 10-K. We make available free of charge through our website our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to these reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as soon as reasonably practicable after we electronically file such materials with, or furnish them to, the SEC.

Markets and Applications

Since our inception, we have focused on satisfying the needs of our customers by establishing long-term collaborative relationships. We have a diverse base of customers across our three end-markets: semiconductor, electronics and packaging, and specialty industrial.

We have developed the following two product strategies that have been instrumental in delivering value to our customers and helping them solve their most complex problems:

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Our Surround the Wafer® offering includes a wide range of products, design and development services, system-level integration, training programs, calibration, service, and repair for our semiconductor customers. This unique combination of products and services enables our customers to solve the challenges of ultra-thin layers, new materials and complex 3D structures while maintaining quality and productivity levels. We have cultivated this strategy over the past two decades by adding critical enabling technologies to our portfolio. The Surround the Wafer offering is an update from what we previously referred to as Surround the Chamber®, given our broadened exposure in photonics solutions for lithography, metrology and inspection, which extends beyond just the vacuum chamber.

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Our Surround the Workpiece® offering includes product design and development, system-level integration, research and development, system, subsystem and component selection, and maintenance, repair and calibration services in the field of laser-based guidance and control for manufacturing processes. In connection with the Atotech Acquisition (as defined below), we introduced an extension of the Surround the Workpiece offering called Optimize the Interconnect®, which refers to MKS’ combined laser drilling and chemistry solutions geared towards accelerating innovation and customers’ time-to-market in printed circuit board (“PCB”) and package substrate manufacturing.

At our core, we are a foundational enabler of miniaturization and complexity. We believe there are three secular trends benefiting MKS. First is the impact of a world that continues to be increasingly interconnected, driving the need for smaller, more powerful and feature-rich advanced electronic devices, which is enabled by semiconductor manufacturing, laser processing and chemistry solutions. Second is the increasing complexity of technology transitions in semiconductor, PCB and package substrate manufacturing, which leads to inflections, such as extreme vertical structures and process engineering at the atomic level, as well as increased interconnect density and smaller features. Third is the accelerating need for laser-based precision manufacturing techniques, which are enabled by lasers, photonics, optics, precision motion control, vibration control and systems solutions. These inflections provide additional growth opportunities for MKS, as we believe we are uniquely positioned to deliver the broadest and deepest portfolio of solutions.

We believe our long history and deep expertise in solving critical problems position us well to address these challenges for our customers.

Semiconductor Market

We are a critical solutions provider for semiconductor manufacturing. Our products are used in major semiconductor processing steps, such as deposition, etching, cleaning, lithography, metrology, and inspection. The semiconductor industry continually faces new challenges, as products become smaller, more powerful and highly mobile. Ultra-thin layers, smaller critical dimensions, new materials, 3D structures, and the ongoing need for higher yield and productivity drive the need for tighter process measurement and control, all of which MKS supports. We believe we are the broadest critical subsystem provider in the wafer fabrication equipment (“WFE”) ecosystem and address over 85% of the market. We characterize our broad and unique offering as Surround the Wafer® to reflect the technology enablement we provide across almost every major process in semiconductor manufacturing today.

The semiconductor market is subject to rapid demand shifts, which are difficult to predict, and we cannot be certain as to the timing or extent of future demand in the semiconductor capital equipment industry. In addition to these rapid demand shifts, the semiconductor capital equipment industry has recently been subject to significant trade restrictions, especially in key markets, including China, which has impacted our sales. Due in part to these demand shifts, including AI-related demand and trade restrictions, our semiconductor market revenue sequentially increased 13% in 2025, sequentially increased 1% in 2024, but sequentially decreased 28% in 2023. Approximately 43%, 42%, and 41% of our net revenues for 2025, 2024, and 2023, respectively, were from sales to our semiconductor market.

Electronics and Packaging Market

We are a foundational solutions provider for the electronics and packaging market. Our portfolio includes photonics components, laser drilling systems, electronics chemistries and plating equipment that are critical for the manufacturing of PCBs and package substrates, and critical to wafer level packaging (“WLP”) applications. Similar to the semiconductor industry, the PCB, package substrate and WLP industries continue to demand smaller features, greater density, and better performance. We believe we are well positioned to support innovation in advanced technologies that underpin the growing adoption of AI. We characterize our complementary offering of laser systems and chemistry solutions as Optimize the Interconnect®, to reflect the unique technology enablement we provide at the Interconnect level within PCBs, package substrates and WLPs. Approximately 28%, 26%, and 25% of our net revenues for 2025, 2024, and 2023, respectively, were from sales to our electronics and packaging market.

Specialty Industrial Market

Our strategy in the specialty industrial market is to leverage our domain expertise and proprietary technologies across a broad array of applications in industrial, life and health sciences, and research and defense markets.

Industrial

Industrial encompasses a wide range of diverse applications, including chemistries for functional coatings, surface finishing and wear resistance in the automobile industry, vacuum solutions for synthetic diamond manufacturing and photonics for solar manufacturing. Other applications include vacuum and photonics solutions for light emitting diode and laser diode manufacturing.

Life and Health Sciences

Our products for life and health sciences are used in a diverse array of applications, including bioimaging, medical instrument sterilization, medical device manufacturing, analytical, diagnostic and surgical instrumentation, consumable medical supply manufacturing and pharmaceutical production.

Research and Defense

Our products for research and defense are sold to government, university and industrial laboratories for applications involving research and development in materials science, physical chemistry, photonics, optics and electronics materials. Our products are also sold for monitoring and defense applications including surveillance, imaging and infrastructure protection.

Approximately 29%, 32%, and 34% of our net revenues for 2025, 2024, and 2023, respectively, were from sales to our specialty industrial market.

International Markets

A significant portion of our net revenues is from sales to customers in international markets. For 2025, 2024, and 2023, international net revenues accounted for approximately 81%, 78%, and 75%, respectively, of our total net revenues. We report geographical net revenues based on the shipped-to location of the end customer. A significant portion of our international net revenues was from customers in China, South Korea, Singapore, Taiwan and Japan. We expect international net revenues will continue to account for a significant percentage of total net revenues for the foreseeable future.

Long-lived assets located outside of the United States accounted for approximately 70% and 59% of our total long-lived assets in 2025 and 2024, respectively. Long-lived assets include property, plant and equipment, net, right-of-use assets and certain other assets.

Reportable Segments, Products and Service Offerings

We are divided into three divisions: the Vacuum Solutions Division (“VSD”), the Photonics Solutions Division (“PSD”) and the Materials Solutions Division (“MSD”). We group our product offerings by our reportable segments: VSD, PSD and MSD. Global Service represents our various service offerings across our three divisions.

VSD delivers foundational technology solutions for semiconductor manufacturing, electronics and packaging and specialty industrial applications. VSD products are derived from our core competencies in vacuum technologies, including pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, and fiber optic temperature and position sensing. Its products include:

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Pressure and Vacuum Control Solutions Products, which consist of direct and indirect pressure measurement.

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Materials Delivery Solutions Products, which include flow and valve technologies as well as integrated pressure measurement and control subsystems, which provide customers with precise control capabilities.

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Power Solutions Products, which consist of microwave and radio frequency power delivery systems, radio frequency matching networks, metrology products, and fiber optic temperature and position sensors. Our power delivery solutions are used to provide energy to various etching, stripping and deposition processes.

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Plasma and Reactive Gas Products, which consist of remote plasma and ozone generators that create reactive species. A reactive gas is used to facilitate various chemical reactions in the processing of thin films, including the deposition of films, etching and cleaning of films and surface modifications.

PSD provides a broad range of instruments, components and subsystems to leading edge semiconductor manufacturing, electronics and packaging and specialty industrial applications. PSD products are derived from our core competencies in lasers, photonics, optics, precision motion control and vibration control. Its products include:

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Laser Products, which consist of continuous wave and pulsed nanosecond and ultrafast lasers based on diode, diode-pumped solid-state and fiber laser technologies.

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Photonics Products, which include precision motion control, optical tables and vibration isolation systems, photonic instruments, high-performance optics and optical assemblies, opto-mechanical components, laser and LED measurement products, including laser power and energy meters and laser beam profilers and complex optical and photonic subsystems.

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Laser-based systems for PCB manufacturing, which include flexible interconnect PCB processing systems and high-density interconnect (“HDI”) solutions for the creation of blind micro-vias necessary for the manufacturing of PCBs (flexible, rigid-flexible, multilayer, HDI) and package substrates.

MSD develops leading process and manufacturing technologies for advanced surface modification, electroless and electrolytic plating, and surface finishing. Applying a comprehensive systems-and-solutions approach, MSD's portfolio includes chemistry, equipment and services for innovative and high-technology applications in our electronics and packaging and specialty industrial markets. Its products include:

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Advanced chemical processes and production equipment, for the manufacturing of PCBs, package substrates and wafers used in smartphones, computers, other consumer electronics, server and data centers, including infrastructure related to AI, automotive electronics, and the medical and industrial industries.

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Advanced chemical processes and production equipment for decorative and functional surface finishing, which include decorative, corrosion-protective, and wear-resistant coatings for various end markets, such as automotive, construction, energy, household appliance and heavy machinery.

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Advanced chemical processes for paint support applications, including pretreatment, stripping and overspray treatment for various end markets such as automotive, construction, aviation, heavy machinery and household appliance.

For further information on our segments, see Note 20 to the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K.

Global Service includes:

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Installation services and training for many of our products.

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On-site services for maintenance and repair of equipment and critical subsystems.

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Technical support offices and technology centers located near many of our customers’ facilities.

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Repair and calibration services at internal service depots and authorized service providers located worldwide.

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Warranties on our products typically range from one to three years, with the majority of the warranties on our products ranging from one to two years. We typically provide warranties on our repair services for periods ranging from 90 days to up to one year, depending upon the type of repair. We also offer extended warranties on our products ranging from one to five years.

Customers

We sell our products and services to thousands of customers worldwide, in a wide range of end markets. Our top ten customers accounted for 35%, 32% and 30% of net revenues for 2025, 2024 and 2023, respectively. None of our customers in 2025, 2024 or 2023 accounted for greater than 10% of net revenues.

Sales and Marketing

Our worldwide sales and marketing organizations are critical to our strategy of maintaining close relationships with a wide array of customers across a diverse set of advanced applications, including semiconductor capital equipment manufacturers, semiconductor device manufacturers, PCB and package substrate manufacturers, and customers across a range of specialty industrial applications. We market and sell our products and services through our global direct sales organization, an international network of independent distributors and sales representatives, our websites and product catalogs. We maintain a marketing staff that identifies customer requirements, assists in product planning and specifications, and focuses on future trends in the markets we serve.

Research and Development

Our products incorporate sophisticated technologies to measure, monitor, deliver, analyze, power, control and improve complex semiconductor and advanced manufacturing processes, thereby enhancing uptime, yield and throughput for our customers. We also offer a broad portfolio of specialty chemistry solutions for advanced surface modification, electroless and electrolytic plating, surface finishing, functional coating and corrosion resistance applications. MSD is supported by 15 state-of-the-art global technology centers, which are used to conduct extensive research and development in order to anticipate future industry requirements.

We continue to develop our products as we strive to meet our customers’ evolving needs. We have developed, and continue to develop, new products to address industry trends, such as the shrinking of integrated circuit critical dimensions and technology inflections, and, in the flat panel display and solar markets, the transition to larger substrate sizes, which require more advanced processing and process control technology, the continuing drive toward more complex and accurate components and devices within the handset, tablet and high performance computing markets, the growth in units and via counts in the HDI PCB and package substrate markets, the industry transition to battery-powered vehicles in the automotive market, and the advancement of AI. In addition, we have developed, and continue to develop, products that support the migration to new classes of materials, ultra-thin layers, and 3D structures that are used in small geometry manufacturing. In our chemistry and equipment plating businesses, a majority of our research and development investment supports existing customers' product improvement needs and their short-term research and development goals, which enables us to pioneer new high-value solutions while limiting commercial risk.

We involve our marketing, engineering, manufacturing and sales personnel in the development of new products in order to reduce the time to market for new products. Our employees also work closely with our customers’ development personnel, helping us to identify and define future technical needs on which to focus research and development efforts. We support research at academic institutions targeted at advances in materials science, semiconductor process development and photonics.

Our research and development expenses were $299 million, $271 million and $288 million for 2025, 2024 and 2023, respectively. Our research and development efforts include numerous projects, none of which are individually material, and generally have a duration of 3 to 36 months, depending upon whether the product is an enhancement of existing technology or a new product. Our current initiatives include projects to enhance the performance characteristics of older products, to develop new products and to integrate various technologies into subsystems.

Manufacturing

Manufacturing activities for VSD and PSD include the assembly and testing of components and subassemblies, which are integrated into our products. Manufacturing activities for MSD consist primarily of the production of chemicals through the mixing of substances and metals to form solutions, and the manufacturing of a range of plating equipment to customer specifications, which utilize these chemicals. Our plating equipment manufacturing process includes design and development, factory installation configuration, assembly and testing.

Our manufacturing facilities are located in Austria, Brazil, Canada, China, France, Germany, India, Israel, Italy, Japan, Malaysia, Mexico, Romania, Singapore, Slovenia, South Korea, Taiwan and the United States. We are also currently in the process of building a new manufacturing facility located in Thailand and fitting out a new manufacturing facility located in Malaysia. In addition, we rely on significant subcontracted operations in Mexico and selected contract manufacturers in Asia. Our business depends on the timely supply of products and services that meet the rapidly changing technical and volume requirements of our customers, which depends in part on the timely delivery of chemicals, parts, components and subassemblies from suppliers, including contract manufacturers. We purchase a wide range of electronic, optical, mechanical and electrical components, some of which are designed to our specifications. For chemical production, we purchase our substances, metals, and compounds from a global supply base. The materials we buy range from commodities, which we buy in bulk, to small quantities of specialty compounds. We consider our lean manufacturing techniques and responsiveness to customers’ significantly fluctuating product demands to be a competitive advantage.

Backlog

We generally schedule production of our products based upon our customers’ delivery requirements. Lead times for many of our products are very short, as a large portion of our orders are received and shipped within 90 days. Some of the plating equipment manufactured by MSD has longer lead times of up to 12 months. In many cases, orders may be subject to cancellation or rescheduling by the customer with limited or no penalty. Our backlog at any particular date, therefore, is not necessarily indicative of actual sales which may be generated for any succeeding period. Historically, our backlog levels have fluctuated based upon the ordering patterns of our customers and changes in our manufacturing capacity.

Competition

The market for our products is cyclical and highly competitive. Principal competitive factors include product quality, performance and price, historical customer relationships, breadth of product line, ease of use, manufacturing capabilities and responsiveness, and customer service and support. Although we believe that we compete favorably with respect to these factors, we can make no assurances that we will continue to do so.

We encounter substantial competition in most of our product lines, although no single competitor competes with us across all product lines. Certain of our competitors have greater financial and other resources than we do. In some cases, competitors are smaller than we are but are well established in specific product niches.

For example, in VSD, Advanced Energy Industries, Inc. offers products that compete with our power solutions, plasma and reactive gas and sensing products. Inficon, Inc. offers products that compete with our pressure and vacuum control solutions products. Hitachi Ltd., Horiba Ltd., Brooks Instrument and VAT, Inc. offer products that compete with our materials delivery solutions products.

In PSD, Trumpf Group, Lumentum Holdings Inc., IPG Photonics Corporation, EdgeWave GmbH and Amplitude Laser Group offer products that compete with our laser products. Coherent Corp., Excelitas Technologies Corp., Jenoptik AG and Thorlabs, Inc. offer products that compete with our laser and photonics products. Sigma Koki Co., Ltd. and PI miCos GmbH offer products that compete with our photonics products. Our laser-based systems for PCB manufacturing primarily compete with laser-based systems provided by Via Mechanics, Ltd., EO Technics Co., Ltd. and Mitsubishi Electric Corporation.

In MSD, Element Solutions Inc., Qnity Electronics, Inc., Uyemura, JCU International, Inc. and Okuno Chemical Industries Co., Ltd. offer products that compete with our chemistry products. Schmid Group, Process Automation International Limited, Top Creation Machines Co., Ltd., Universal Circuit Board Equipment Co., Ltd., Almex Technologies Inc. and Manz Asia offer products that compete with our plating equipment products.

Sources and Availability of Materials, Parts and Components

We use various suppliers and contract manufacturers to supply materials, parts and components for manufacturing and support of our product lines. Although our intention is to establish multiple sources of supply whenever practicable, we have sole or limited source supply arrangements for certain materials, parts and components, such as certain metals and electronic components. Certain of our sole or limited source supply arrangements are the result of “copy exact” requirements of our customers. We may not be able to procure these materials, parts and components from alternate sources at acceptable prices and quality within a reasonable time, or at all. The risk of loss or interruption of this supply could impact our ability to deliver certain products on a timely basis. For additional information about risks related to our supply chain, please refer to our Risk Factors in Part I, Item 1A of this Annual Report.

Patents and Other Intellectual Property Rights

We rely on a combination of patent, copyright, trademark and trade secret laws and license agreements to establish and protect our proprietary rights. As of December 31, 2025, we owned 585 U.S. patents and 2,217 foreign patents that expire at various dates through 2044. As of December 31, 2025, we had 150 pending U.S. patent applications. Foreign counterparts of certain U.S. applications have been filed or may be filed at the appropriate time.

We require each of our employees, including our executive officers, to enter into standard agreements pursuant to which the employee agrees to keep confidential our proprietary information and to assign to us all inventions while they are employed by us.

Government Regulations

We are subject to various federal, state, local and international laws and regulations relating to the development, manufacture, sale and distribution of our products and services, and it is our policy to comply with the laws in every jurisdiction in which we conduct business. Regulations include, but are not limited to, those related to the environment, trade, corruption, bribery, import and export controls, competition, product safety, workplace health and safety, employment, labor and data privacy. The following describes certain significant regulations that may have a material effect on our capital expenditures, earnings and competitive position. For additional information about risks related to government regulations, please refer to “Risk Factors–Legal, Tax, Regulatory and Compliance Risks” in Part I, Item 1A of this Annual Report on Form 10-K.

Trade Compliance

We are subject to trade compliance laws in both the United States and other jurisdictions where we operate, including export regulations such as the U.S. Export Administration Regulations, administered by the U.S. Department of Commerce’s Bureau of Industry and Security, and the International Traffic in Arms Regulation, administered by the Department of State’s Directorate of Defense Trade Controls.

Environmental Regulations

We are subject to various, federal, state, local and international laws and regulations relating to environmental protection, including those governing discharges of pollutants into the air, water and land, the reporting, generation, use, handling, storage, transportation, treatment and disposal of hazardous substances, waste and other materials and the cleanup of contaminated sites. These environmental regulations include the European Union Regulation on Registration, Evaluation, Authorisation and Restriction of Chemicals and the Toxic Substances Control Act in the United States and the Technical Standards on Environmental Risk Assessment and Control of Chemical Substances (2024) and List of Chemicals under Priority Control in China.

Human Capital

In order to compete and succeed in highly competitive markets and industries that are subject to rapid technological change, we believe it is critical to attract, motivate and retain a dedicated, talented and innovative team of employees. As part of these efforts, we strive to foster an inclusive and welcoming community, invest in continuous learning and development, engage meaningfully with employees, offer a competitive compensation and benefits program and provide a safe and healthy workplace.

As of December 31, 2025, we had a total workforce of approximately 10,300 individuals, excluding contracted employees. We have sites in 37 countries, with 33% of our employees located in the Asia-Pacific region, 34% located in Europe, the Middle East and India and 33% located in the Americas. Of our total workforce, approximately 10,200 were employees and approximately 100 were temporary workers. Of our total workforce, 18% work in research and development, 55% work in operations, manufacturing, service and quality assurance, and 27% work in sales, order administration, marketing, finance, human resources, legal, information technology, general management and other administrative functions.

Culture and Belonging

At MKS, we are committed to fostering a culture grounded in respect, belonging, and merit, where employees are empowered to contribute fully and perform at their best. We believe that a workplace that values different perspectives, experiences, and ways of thinking strengthens collaboration, drives innovation, and supports long-term business performance. Our global Culture and Belonging strategy is aligned with our corporate values and business objectives and is designed to support an engaged, high-performing workforce across all regions in which we operate.

To support this commitment, we advance a number of programs and practices, including the following:

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Inclusion Academy, a structured enterprise learning framework designed to build capability in inclusive leadership, communication, and collaboration. Launched in 2025, the Inclusion Academy includes various facilitated workshops such as Inclusive Leadership, Own Your Voice, and Inclusive Hiring & Interviewing. Offerings are scalable and can be tailored by management level and function to address specific business and workforce needs while maintaining consistent global standards.

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4C: Cross-Cultural Communication & Collaboration, an enterprise-wide learning program focused on strengthening cross-cultural effectiveness in a geographically and functionally diverse organization. The program provides practical tools to support communication, feedback, trust-building, persuasion, and decision-making across cultural contexts and is designed to improve alignment, execution, and collaboration across global teams.

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Employee Resource Groups, which are open to all employees and provide opportunities for professional development, mentoring, community impact, and dialogue that strengthen engagement and belonging across the organization.

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MentorConnect, MKS’ enterprise-wide mentoring program, which facilitates knowledge sharing, professional development, and connection across functions, geographies, and levels of the organization.

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Comprehensive analyses of pay practices in our major regions of operations to identify and, if needed, rectify any disparities promptly and effectively. Our most recent global compensation analysis has resulted in equitable pay for our workforce with minimal adjustments.

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Consistent with our Corporate Governance Guidelines, we actively seek diverse candidates for the pool from which our Board of Director nominees are chosen.

Through these efforts, we aim to cultivate a work environment where employees feel respected, supported, and connected to our shared purpose, while reinforcing a culture of accountability, performance, and continuous improvement that supports MKS’ long-term success.

Learning and Development

MKS remains steadfast in its dedication to fostering learning and professional growth. We offer our employees a comprehensive catalog of programs, courses and resources aimed at building leadership capabilities and personal effectiveness. Our performance management framework is designed to provide ongoing, actionable feedback and facilitate dynamic career development conversations throughout the year.

We extend financial assistance for higher education to eligible employees, including support for college and graduate studies. Additionally, we ensure accessibility to online learning resources via LinkedIn Learning for all employees, cultivating professional development.

Employee Engagement

MKS remains dedicated to fostering meaningful connections with its employees. In 2025, MKS conducted its fifth annual global employee engagement survey, with a record 91% participation rate. The survey findings were analyzed and shared with our President and Chief Executive Officer, the executive leadership team and our Board of Directors. Comprehensive communication of the results was extended to all employees and supplemented with executive videos and both in-person and virtual focus groups

to pinpoint prevailing themes. Leveraging these themes and data points, tailored action items were created to encourage meaningful change, with corporate initiatives focusing on innovation and cross-departmental collaboration.

Additionally, our executive leadership team routinely engages in direct communication with employees worldwide, ensuring alignment with the Company's strategic goals. Our executive leadership team is committed to continuously enhancing MKS’ workplace environment and steering organizational growth, with the annual engagement survey serving as a pivotal component for gathering employee insights.

Compensation and Benefits

MKS is committed to providing total compensation packages that attract, motivate and retain our employees, as well as recognizing and rewarding employees’ sustained performance and results. We also maintain a global flexible work policy. We are committed to ensuring that these total compensation packages are externally competitive and internally equitable, while supporting our business plans and strategies.

As employee turnover is an indicator of employee satisfaction, we monitor turnover globally. MKS has a very stable and committed workforce, as evidenced by low voluntary turnover. Our voluntary turnover for the year ended December 31, 2025 was 6%. Our average employee tenure as of December 31, 2025 was more than ten years.

Health and Safety

MKS is committed to providing a safe and healthy workplace for all employees. We accomplish this through strict compliance with applicable laws and regulations regarding workplace safety, including recognition and control of workplace hazards, tracking injury and illness rates, utilizing a global travel risk management program and maintaining detailed emergency and business continuity plans. We recently launched two new safety programs aimed at raising awareness among leaders and mid-level management: Safety Toolbox Talks and Safety Moments. We also provide mandatory environmental, health and safety training to ensure all employees are provided with the education to perform their jobs safely and to protect the environment.

We have instituted MEHS, a formal Global MKS Management System for Environmental, Health, and Safety, to protect our employees, other stakeholders, and the environment. This system is structured around four strategic pillars: foundation and structure; operational discipline; mindset and culture; and governance and compliance.

In addition, we offer employees and eligible family members a full range of health and wellness programs, as well as many clinical and administrative services.

Additional information regarding MKS’ activities related to its people and sustainability can be found in our Environmental, Social, Governance Report, which is accessible through the Environmental, Social and Governance section of our website. Our Environmental, Social, Governance Report is updated periodically. None of the information on, or accessible through, MKS’ website is part of this Annual Report on Form 10-K or is incorporated by reference herein.

Item 1A. Risk Factors

This section describes certain risks we face in our business. Additional risks that we do not yet know of or that we currently believe are immaterial may also impair our business. If any of the events or circumstances described in this section actually occurs, our business, financial condition or operating results could suffer, and the market price of our common stock could decline. In assessing these risks, investors should also refer to the other information contained in or incorporated by reference into this report and our other filings with the Securities and Exchange Commission (“SEC”).

Strategic Transaction Risks

As part of our business strategy, we have consummated and may continue to pursue acquisitions and other strategic transactions. Our most recent acquisition of Atotech Limited (“Atotech”) in August 2022 (the “Atotech Acquisition”) significantly increased our size, including with respect to revenue, product offerings, technologies, employees, facilities, and geographic and market exposure. Our ability to successfully identify suitable acquisition targets, complete acquisitions on acceptable terms, and efficiently, effectively and profitably integrate and operate our acquired businesses, is critical to our growth. We may not be able to identify target companies that meet our strategic objectives or successfully negotiate and complete acquisitions with companies we have identified on acceptable terms. Further, we may incur significant expense in pursuing acquisitions that cannot be

completed, or are significantly delayed, due to regulatory or other restrictions. Additionally, our Credit Facilities (as defined below) only permit us to make acquisitions under certain circumstances and also restrict our ability to incur additional indebtedness in certain circumstances. As a result, our acquisition strategy may be hindered by our indebtedness. Moreover, we may not realize the benefits we anticipate from these acquisitions because of potentially significant challenges, such as:

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The difficulty, distraction, disruption, resource requirements and cost of developing sufficient knowledge of, managing, and integrating the operations, personnel, and internal controls, financial reporting and information technology (“IT”) systems of the acquired companies;

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The disruption of our ongoing business and distraction of management;

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Internal control or other compliance weaknesses of the acquired companies;

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Significant expenses related to the acquisitions, including any resulting shareholder litigation;

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The assumption of unknown or contingent liabilities associated with the acquired companies;

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Incompatible cultural differences between us and the acquired companies;

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The difficulty of incorporating the acquired companies' technology and products into our current and future product lines, and successfully generating market demand for these expanded product lines;

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Additional geographic dispersion of operations and/or increased exposure to high-risk geographies;

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The difficulty in achieving anticipated synergies and efficiencies;

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The difficulty in leveraging the acquired companies' and our combined technologies and capabilities across our product lines and customer base;

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Burdensome requirements or conditions imposed by government regulators in connection with their review of acquisitions, including divestitures and restrictions on the conduct of our business or the business of the acquired companies;

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Competitive disadvantages we may face by selling products that are new to us and/or selling products in markets and geographies that are new to us;

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The difficulty of retaining key customers, suppliers and employees of the acquired companies; and

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Incurring or recording significant cash or non-cash charges or writing down the carrying value of intangible assets and goodwill obtained in the acquisitions, which could adversely impact our cash flow or lower our earnings.

For example, in 2023, we recorded impairments of $1.9 billion in goodwill and intangible assets obtained in the Atotech Acquisition and the acquisition of Electro Scientific Industries, Inc. (“ESI”), which we acquired in 2019 (the “ESI Acquisition”).

In addition, if we do not successfully complete acquisitions or integrate acquired businesses, we may need to re-evaluate our growth strategy. We may incur substantial expenses and devote significant management time and resources to complete acquisitions that may not generate the financial results we planned to achieve.

In addition, we could use substantial portions of our available cash for all or a portion of the purchase price of future acquisitions. We could also issue additional securities as consideration for or to finance these acquisitions, which could cause significant stockholder dilution, or obtain additional debt financing, which would increase our costs, reduce our cash flow and subject us to covenants and other restrictions that may impede our ability to manage our operations, without achieving the desired accretion to our business.

As a result of previous acquisitions, we have several different decentralized operating and accounting systems. We will need to continue to modify our accounting policies, internal controls, procedures and compliance programs to provide consistency across our operations. In order to increase efficiency and operating effectiveness and improve corporate visibility into our decentralized operations, we continue to review opportunities to integrate enterprise resource planning systems or deploy data consolidation tools where practical. Any such systems changes may disrupt our operations during the conversion periods and may require significantly more management time and higher implementation costs than anticipated.

We may also choose to close or divest certain of our product lines or business units that do not fit into our strategic plan. Divestitures involve additional risks and uncertainties, such as the ability to sell such businesses on satisfactory price and terms and in a timely manner, or at all, disruption to other parts of the businesses and distraction of management, allocation of internal resources that would otherwise be devoted to completing strategic acquisitions or other strategic projects or initiatives, loss of key employees or customers, loss of access to critical intellectual property (“IP”) or other assets transferred with the divested business, exposure to

unanticipated liabilities or ongoing obligations to support the businesses following such divestitures, decreases in revenue and earnings associated with such businesses, and other adverse financial impacts.

Financial Risks

Our substantial consolidated indebtedness could adversely affect us, including by increasing our interest expense and decreasing our business flexibility.

We have substantial consolidated indebtedness. As of February 4, 2026, we had approximately $1.6 billion of principal indebtedness outstanding under a senior secured term loan facility (the “Term Loan Facility”) comprised of two tranches: a $914 million loan (the “USD Tranche B”) and a €587 million loan (the “Euro Tranche B”). As of February 4, 2026, we also had $1.0 billion of available borrowing capacity under a senior secured revolving credit facility (the “Revolving Facility” and together with the Term Loan Facility, the “Credit Facilities”). On May 16, 2024, we completed a private offering of $1.4 billion aggregate principal amount of convertible senior notes due 2030 (the “Convertible Notes”), and used approximately $1.2 billion of the proceeds to partially repay borrowings under the USD Tranche B. On February 4, 2026, we completed a private offering of €1.0 billion aggregate principal amount of senior notes due 2034 (the “2034 Notes”), and used the net proceeds thereof, together with cash on hand, to partially repay approximately $1.3 billion of borrowings under the USD Tranche B.

This level of indebtedness could have the effect, among other things, of reducing our flexibility to respond to changing business, industry and economic conditions, limiting our ability to obtain financing in the future and increasing interest expense. We have also incurred and will continue to incur various costs and expenses associated with our indebtedness. The amount of cash required to pay interest on our increased indebtedness levels, and the demands on our cash resources that come from that debt, are significant. Our level of indebtedness could also reduce funds available for working capital, capital expenditures, acquisitions and other general corporate purposes and may create competitive disadvantages relative to other companies with lower debt levels. If our financial performance does not meet our expectations, then our ability to service our indebtedness may be adversely impacted.

With respect to the Convertible Notes, the accounting method for convertible debt securities that may be settled in cash, such as the Convertible Notes, could have a material effect on our reported financial results. Furthermore, in the event the conditional conversion feature of the Convertible Notes is triggered, holders of Convertible Notes will be entitled to convert the Convertible Notes at any time during specified periods at their option. If one or more holders elect to convert their Convertible Notes, we would be required to settle any converted principal in cash, which could adversely affect our liquidity. In addition, even if holders do not elect to convert their Convertible Notes, we would be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the Convertible Notes as a current rather than long-term liability, which would result in a material reduction of our net working capital.

If a change of control triggering event (as defined in the indenture with respect to the 2034 Notes) occurs prior to the maturity of the 2034 Notes, holders of the 2034 Notes will have the right, at their option, to require us to repurchase all or a portion of their 2034 Notes. In addition, if a fundamental change occurs prior to the maturity date of the Convertible Notes, holders of the Convertible Notes will have the right, at their option, to require us to repurchase all or a portion of their Notes. In addition, if a make-whole fundamental change occurs prior to the maturity date of the Convertible Notes, we will in some cases be required to increase the conversion rate for a holder that elects to convert its Convertible Notes in connection with such make-whole fundamental change. Furthermore, the indentures governing the Convertible Notes and the 2034 Notes prohibit us from engaging in certain mergers or acquisitions unless, among other things, the surviving entity assumes our obligations under the Convertible Notes, the 2034 Notes and the indentures, as applicable. These and other provisions in the indentures could deter or prevent a third party from acquiring us even when the acquisition may be favorable to investors.

Despite our current level of indebtedness, we and our subsidiaries may still be able to incur more indebtedness. Although our debt agreements contain restrictions on the incurrence of additional indebtedness, these restrictions are subject to certain qualifications and exceptions, and thus, additional indebtedness may be incurred in compliance with these restrictions. This could further exacerbate the risks we describe.

Moreover, we may be required to raise substantial additional financing to fund working capital, capital expenditures, acquisitions or other general corporate requirements. Our ability to arrange additional financing or refinancing will depend on, among other factors, our financial position and performance, as well as prevailing market conditions and other factors beyond our control. There can be no assurance that we will be able to obtain additional financing or refinancing on terms acceptable to us or at all.

The terms of our Term Loan Facility, Revolving Facility and 2034 Notes impose significant financial obligations and risks upon us, limit our ability to take certain actions, and could discourage a change in control.

As of February 4, 2026, the total principal balance of our USD Tranche B was $914 million, and the total principal balance of our Euro Tranche B was €587 million. As of February 4, 2026, our Revolving Facility provided us with a senior secured revolving credit facility of up to $1.0 billion. We have not borrowed against our Revolving Facility as of February 4, 2026. Additionally, on February 4, 2026, we completed a private offering of €1.0 billion aggregate principal amount of the 2034 Notes.

All amounts outstanding under the Term Loan Facility and the Revolving Facility bear interest at a variable interest rate. Although we hedge some of the variable interest rate exposure, if interest rates increase, debt service requirements on our variable rate debt will increase. Further interest rate increases, if they occur and we do not hedge such variable rates, will create higher debt service requirements, which would adversely affect our cash flows. In addition, changes in our credit ratings could affect the cost and availability of future borrowings and, accordingly, our cost of capital. The ratings of our indebtedness reflect each nationally recognized statistical rating organization’s opinion of our financial strength, operating performance and ability to meet our debt obligations. We cannot make any assurances that we will achieve or maintain a particular rating.

Our Term Loan Facility and Revolving Facility contain several negative covenants that, among other things and subject to certain exceptions, restrict our ability and/or our subsidiaries’ ability to:

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Incur additional indebtedness;

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Pay certain dividends on our capital stock or redeem, repurchase or retire certain capital stock or certain other indebtedness;

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Make certain investments, loans and acquisitions;

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Engage in certain transactions with our affiliates;

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Sell assets, including capital stock of our subsidiaries;

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Materially alter the business we conduct;

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Consolidate or merge;

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Incur liens; and

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Engage in sale-leaseback transactions.

In addition, our 2034 Notes contain negative covenants that, among other things and subject to certain exceptions, restrict our ability and/or our subsidiaries’ ability to:

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Consolidate or merge; and

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Incur liens.

In addition, our Revolving Facility requires that we meet a financial covenant based on a consolidated leverage ratio test in certain circumstances. Under our Revolving Facility, whenever the aggregate amount of loans outstanding under the Revolving Facility (net of (a) all letters of credit (whether cash collateralized or not) and (b) unrestricted cash of us and our restricted subsidiaries) exceeds 35% of the aggregate commitments under the Revolving Facility, our total net leverage ratio cannot exceed 6.00 to 1.00.

Our ability to comply with these provisions may be affected by events beyond our control, including prevailing economic, financial and industry conditions. These restrictions on our ability to engage in or benefit from these actions may also limit our flexibility in planning for, or reacting to, changes in and opportunities for our business, such as limiting our ability to engage in mergers and acquisitions. This could place us at a competitive disadvantage. If the matters described in our other risk factors result in a material adverse effect on our business, financial condition or operating results, we may be unable to comply with the terms of the Credit Facilities or experience an event of default.

Our Term Loan Facility and Revolving Facility contain customary events of default, including:

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Failure to make required payments;

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Failure to comply with certain agreements or covenants;

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Materially breaching any representation or warranty;

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Failure to pay, or otherwise causing the acceleration of, certain other indebtedness;

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Certain events of bankruptcy and insolvency;

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Failure to pay certain judgments; and

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A change in control of us.

Our 2034 Notes contain customary events of default, including:

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Failure to make required payments;

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Failure to comply with certain agreements or covenants;

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Failure to pay, or otherwise causing the acceleration of, certain other indebtedness;

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Certain events of bankruptcy and insolvency; and

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Failure to pay certain judgments.

The amount of cash available to us for repayment of amounts owed under the Credit Facilities and the 2034 Notes will depend on our usage of our existing cash balances and our operating performance and ability to generate cash flows from operations, which will be subject to financial, business and other factors affecting our operations, many of which are beyond our control. We cannot provide any assurances that we will generate sufficient cash flows from operations to service our debt obligations. Any failure to repay these obligations as they become due would result in an event of default under the Credit Facilities and the 2034 Notes.

If an event of default occurs under the Credit Facilities, the lenders may end their obligation to make loans to us under the Credit Facilities and may declare any outstanding indebtedness under the Credit Facilities immediately due and payable. In addition, if an event of default occurs under the 2034 Notes, the trustee and holders thereof may declare any outstanding indebtedness under the 2034 Notes immediately due and payable. In such cases, we would need to obtain additional financing or significantly deplete our available cash, or both, to repay this indebtedness. Any additional financing may not be available on reasonable terms or at all, and significant depletion of our available cash would harm our ability to fund our operations or execute our broader corporate objectives. If we were unable to repay outstanding indebtedness following an event of default, then in addition to other available rights and remedies, the lenders could initiate foreclosure proceedings on substantially all of our assets. Any such foreclosure proceedings or other rights and remedies successfully implemented by the lenders in an event of default would have a material adverse effect on our business, financial condition and operating results.

Further, because a change in control of us constitutes an event of default under the Credit Facilities, this may be a deterrent to some potential acquirers, as it would likely require an acquirer to repay any outstanding borrowings under the Credit Facilities.

As of December 31, 2025, our goodwill and intangible assets, net, represented approximately $4.7 billion, or 54%, of our total assets. Goodwill is generated as a result of our acquisitions when the cost of an acquisition exceeds the fair value of the net tangible and identifiable intangible assets we acquire. Intangible assets relate primarily to the developed technologies, customer relationships, trade names and trademarks acquired by us as part of our acquisitions. Goodwill and indefinite-lived intangible assets are subject to an impairment analysis at least annually based on the fair value of the reporting unit in which the respective goodwill and intangible assets are recorded. In addition, goodwill and intangible assets are subject to an impairment analysis whenever events or changes in circumstances indicate that the carrying value of the goodwill or intangible assets might not be recoverable. In 2023, we recorded goodwill and intangible asset impairments of $1.9 billion following our annual impairment analysis and following certain triggering events. If market and economic conditions or business performance deteriorate, the likelihood we could record another impairment charge would increase. Any impairment charge could materially and adversely affect our financial condition and operating results, including by significantly reducing our net income.

Risks Related to Cybersecurity, Data Privacy and Intellectual Property Protection

We rely on various IT networks and systems, some of which are managed by third parties, to process, transmit and store electronic information and to carry out and support virtually all business and operational activities. Many of these activities are processed via Software-as-a-Service (“SaaS”) products provided by third parties and hosted on their own networks and servers or on third-party networks and servers. The data on such IT networks and systems includes confidential information, personally identifiable information, transactional information and IP belonging to us and our employees, customers, suppliers and other business partners.

We and our third-party administrators, vendors, customers and partners are subject to ongoing cybersecurity threats, including ransomware and other malware, hacking, phishing, smishing, denial of service attacks, employee errors or malfeasance,

telecommunication failures, system failures, natural disasters and other attacks and events. We cannot guarantee that these threats will not have an adverse impact on our business, financial condition or operating results. For example, in February 2023, we identified that we had become subject to a ransomware event. Based on our investigation, we concluded ransomware actors encrypted certain of our systems by deploying malware. This incident required us to temporarily suspend operations at certain of our facilities and had a material impact during the three months ended March 31, 2023 on our ability to process orders, ship products and provide service to our Vacuum Solutions Division (“VSD”) and Photonics Solutions Division (“PSD”) customers. For the year ended December 31, 2023, we incurred net costs related to the incident of approximately $15 million. In addition, as a result of the incident, we were previously subject to two lawsuits, and we may be subject to future litigation, investigations, claims or actions, in addition to fines, penalties, or other obligations related to impacted data, whether or not such data is misused.

As we transition to using more cloud-based solutions that depend on the internet or other networks to operate, we may face additional or different cybersecurity and other data security threats, whether directly or through our third-party administrators, vendors and partners. As cybersecurity threats rapidly evolve and become increasingly difficult to detect and defend against, our current security controls and measures may not detect vulnerabilities or prevent cybersecurity incidents. These risks may be amplified by increased reliance on remote access to IT systems as a result of the use of SaaS software, cloud and remote services, and employees working remotely. Further, the use of AI by us, our customers, suppliers and other business partners and third-party providers may introduce vulnerabilities into our IT systems and data. AI may also be used by bad actors to identify vulnerabilities and carry out increasingly sophisticated cybersecurity attacks. Additionally, we face the challenge of supporting and updating security protocols for, transitioning to or from, and integrating various IT and information management systems, including as a result of mergers, acquisitions and divestitures. The systems that we acquire or that are used by acquired entities or businesses may pose security risks of which we are unaware or unable to mitigate, particularly during the transition of these systems.

The evolving regulatory landscape for data privacy presents a number of legal and operational challenges, and our efforts to comply with relevant regulations may be unsuccessful. For example, regulations in the European Union (the “EU”) and China prohibit the transfer of personally identifiable information from their respective countries to other countries whose laws do not adequately protect personal data. The permitted approaches we use to transfer personally identifiable information from these countries may be invalidated by courts or regulatory bodies, requiring us to ascertain an alternative legal basis for such transfers. Additionally, based on our investigation of the 2023 ransomware event, we provided notifications to individuals and regulators in accordance with applicable laws after we became aware that the ransomware actors may have exfiltrated personal information from our systems. See “We are exposed to various risks related to legal proceedings, including, for example, product liability claims, intellectual property infringement claims, regulatory claims, contractual claims and class action litigation, which if successful, could have a material adverse effect on our commercial relationships, business, financial condition and operating results” below for more information regarding legal risks associated with privacy-related matters.

A failure to comply with the evolving regulatory landscape, or a breach of our operational or security systems or infrastructure, or those of our customers, suppliers and other business partners, could disrupt our business, including business operations and manufacturing processes; result in the disclosure, misuse, corruption or loss of confidential or other valuable business information, including IP, personally identifiable information and other critical data of ours and our employees, customers, suppliers and other business partners; result in competitive disadvantages; damage our reputation; negatively affect our relationships with our employees, customers, suppliers and other business partners, including loss of confidence, which could lead to loss of or reduction in orders; divert the attention of management; cause losses; result in litigation, investigations or liability under contracts; require notifications to regulatory authorities and impacted individuals; result in significant penalties and/or fines from regulatory bodies, including pursuant to privacy laws and export control laws; add to the complexity of our compliance obligations; increase cybersecurity protection costs; and result in remediation costs. These adverse effects would likely be amplified in the event a breach of operational or security systems remains undetected for an extended period of time.

The costs of compliance with, and other burdens imposed by, privacy, cybersecurity, data protection and data localization laws, regulations and policies, including restrictions on marketing activities, could have a material adverse effect on our business, financial condition and operating results. For example, as a result of the 2023 ransomware event, we incurred significant costs in connection with efforts to investigate the incident, assess the impact of the incident and recover our systems. We have incurred and expect to continue to incur significant costs to enhance our data security and protect our systems and data. However, we cannot eliminate every vulnerability, and similar incidents may occur in the future. Further, customers and third-party providers increasingly demand rigorous contractual provisions regarding privacy, cybersecurity, data protection, confidentiality, and IP, which may also increase our compliance burden and potential liability.

Although we maintain insurance related to cybersecurity risks, these costs, expenses, liabilities and other matters may not be adequately covered by insurance and may result in an increase in insurance costs or insurance not being available to us on economically feasible terms, or at all. Insurers may also deny us coverage as to any future claim. Any of these results could harm our business, financial condition and reputation. For additional information on our cybersecurity risk management, strategy and governance, please refer to Part I, Item 1C of this Annual Report on Form 10-K.

Our proprietary technology is important to the continued success of our business. Our failure to protect this proprietary technology may significantly impair our competitive position.

Our continued success depends in large part upon protecting our proprietary technology. We rely on a combination of patent and trademark laws, trade secret protection and contractual agreements, such as nondisclosure agreements, to protect our proprietary rights. However, we may not be able to deter or prevent the infringement or misappropriation of our IP, particularly in countries and regions outside, for example, the United States and Europe, where laws may not protect our proprietary rights as comprehensively. For example, the patent prosecution and enforcement systems within China and India, where we have a significant customer base and manufacturing presence, are comparatively less robust and may favor locally headquartered companies over foreign entities, potentially limiting our ability to enforce our IP rights there. The infringement, misappropriation, invalidation, circumvention, loss or expiration of any of our key patents could lead to a significant loss of sales of certain of our products and could materially affect our operating results. Seeking patent protection can be time consuming and expensive. There is no guarantee patents will be issued to us or be sufficient in scope or strength to provide meaningful protection or a commercial advantage to us. We may initiate claims, enforcement actions or litigation for infringement of our proprietary rights in order to determine the scope and validity of our proprietary rights or the proprietary rights of our competitors. We may also be subject to similar claims, enforcement actions or litigation, including counterclaims asserting the invalidity of our patents. In either case, these claims could result in costly litigation and the diversion of management and our technical personnel. Further, governments and courts are considering new issues in IP law with respect to work created by AI technology, which could result in different IP rights in development processes, procedures and technologies we may create with AI technology, which could have a material adverse effect on our business.

Risks Related to Our Operations

Our business depends on the timely supply of products and services that meet the rapidly changing technical and volume requirements of our customers, which depends in part on the timely delivery of raw materials, parts, components and subassemblies from our suppliers, including contract manufacturers. For example, throughout 2025, we experienced significant constraints due to global supply chain disruptions caused by geopolitical instability, including difficulty procuring raw materials, increased materials costs for components, and higher tariffs, which negatively impacted our sales, costs and margins, and our ability to timely produce products to meet customer demand. Supply constraints and the potential for shortages caused us to increase safety stock levels, which has increased the amount of inventory we hold. Cyclical industry conditions and volatility of demand for our products increase capital, technical, operational and other risks for us and for companies throughout our supply chain. We have experienced, and we may experience in the future, significant disruptions in our supply chain, interruptions of our manufacturing operations, delays in our ability to deliver products or services, increased costs, price volatility, and customer order cancellations, which have been, or may in the future be, as a result of:

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Volatility in the availability and cost of materials, including electronic components and raw materials, whether due to interruptions in production by suppliers, allocations of products to other purchasers, fluctuations in foreign currency exchange rates, changes in worldwide price levels (whether due to inflationary pressures or otherwise), environmental limitations, geopolitical issues or other factors;

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Pandemics such as COVID-19, natural disasters or other events beyond our control (such as earthquakes, floods or storms, wildfires, power outages, regional economic downturns, social unrest, political instability, terrorism, or acts of war), particularly where we or our suppliers, subcontractors and contract manufacturers conduct manufacturing;

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Global logistics network challenges, such as limited availability of and constraints on freight capacity;

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IT or infrastructure failures; and

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New laws or regulations.

For example, we use certain raw materials derived from petrochemical based feedstocks, the prices of which have historically been subject to periods of rapid and significant upward and downward movement. We may not be able to pass on price increases in raw materials, or price increases by our suppliers, to our customers due to competitive pricing pressure, and, even when we are able to do so, there may be a delay between price increases in raw materials and price increases of our products.

In addition, a rapid increase in our business and manufacturing capacity to meet increases in demand or expedited shipment schedules may exacerbate any interruptions in our manufacturing operations and supply chain and the associated effect on our working capital. Moreover, if actual demand for our products is different than expected, we may purchase more or fewer parts than

necessary or incur costs for canceling, postponing or expediting delivery of parts. If we purchase inventory in anticipation of demand that does not materialize, or if our customers reduce or delay orders, we may incur excess inventory charges. Any of these factors could materially and adversely affect our business, financial condition and operating results.

Our dependence on sole and limited source suppliers and international suppliers has negatively impacted, and could continue to impact, our ability to manufacture products and systems.

We rely on sole and limited source suppliers and international suppliers for some of our raw materials, components, subassemblies and software that are critical to manufacturing our products and/or our testing and operations processes due to unique properties or component designs as well as specialized quality and performance requirements. Our reliance on sole and limited source suppliers and international suppliers involves a number of risks, including:

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The inability to obtain an adequate supply of required raw materials or components, including if our suppliers cannot scale their manufacturing output to meet our demands;

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Quality and reliability problems with raw materials or components, which in turn may adversely affect our products' quality and reliability;

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Prohibitively higher raw material or component prices, including on aging components;

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High and fluctuating tariffs on our supplies, resulting in higher prices and our products becoming less competitive;

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Supply chain disruptions, including as a result of the relocation of certain low-cost and sole and limited source suppliers to less-developed countries;

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Reduced control over pricing and timing of delivery of raw materials and components;

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The inability of our suppliers to develop technologically advanced products to support our growth and development of new products;

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Difficulty obtaining raw materials, including critical rare earth elements, concentrated in limited geographies at reasonable prices or at all due to trade restrictions for those materials;

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The unavailability of service and/or spare parts for critical capital equipment; and

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The inability or unwillingness of our suppliers to continue to offer supplies or services on commercially acceptable terms.

At times, we have not been able to, and in the future, we may not be able to, obtain and qualify alternative sources of these components on favorable terms, on a timely basis, or at all, whether because there are a limited number of suppliers or because we have entered into supply agreements with certain suppliers that contain certain minimum purchase requirements. The use of alternative sources could require us to redesign our products, which could result in increased costs, shipping delays and the need to requalify products with customers, particularly those with “copy exact” requirements. Any inability to redesign our products could result in further costs and shipping delays. Increased costs would decrease our profit margins if we could not pass these costs to our customers. Further, shipping delays have damaged, and may continue to damage, our relationships with customers and could have a material adverse effect on our business and operating results.

As part of our continuous cost-reduction and business continuity efforts, we continue to relocate the manufacturing of certain of our existing product lines and subassemblies to, and initiate the manufacturing of certain new products in, our facilities in Mexico, Romania and Singapore, as well as to our significant subcontracted operations in Mexico and selected contract manufacturers in Asia. In addition, we have relocated certain segments of other functions to, or initiated certain segments of other functions in, centralized locations, including relocating certain procurement activity to Mexico and Romania, relocating certain IT and research and development activity to India, relocating certain administrative finance, payroll, software and IT activity to Poland, and continuing certain engineering activity in India. We may expand the level of functions that we initiate in or move to other global locations to take advantage of cost efficiencies or for business continuity purposes. For example, we are currently in the process of building significant manufacturing facilities located in each of Penang, Malaysia, Yangzhou, China and Bangkok, Thailand. However, we may not be able to achieve significant cost savings or other benefits from these actions. For example, costs may increase as development and manufacturing expenses increase and labor, material, logistics and facility-related costs rise, as we have seen in our existing manufacturing locations in China, Mexico and Romania. If these costs increase such that we are unable to realize the cost savings we anticipated, we may need to relocate these operations and functions to other lower-cost

regions. Additionally, if we are unable to successfully manage the relocation, initiation or oversight of these operations and functions, including identifying, training and retaining skilled labor, our business, financial condition and operating results would be harmed.

In particular, transferring product lines to other manufacturing locations and/or to or from our contract manufacturers' facilities often requires us to transplant complex manufacturing equipment and processes across a large geographical distance, train a completely new workforce to use this equipment and these processes, and comply with local regulations. In addition, our customers may require us to requalify products supplied to them in connection with the relocation. If we are unable to successfully manage these transfers and training, or if we are unable to requalify products in a timely manner, we could suffer manufacturing and supply chain delays, excessive product defects, harm to our operating results and our reputation, and loss of customers. Further, utilizing overseas manufacturing locations and contract manufacturers may require additional transportation and shipping costs and customs tariffs or export licenses, which may be difficult or costly to obtain, or which may become subject to unanticipated changes.

Additionally, qualifying contract manufacturers and commencing volume production is expensive and time-consuming, and there is no guarantee we will continue to do so successfully. Further, our reliance on contract manufacturers reduces our control over compliance, assembly, quality assurance, production costs and material and component supply for our products. If we fail to manage our relationships with our contract manufacturers, or if any of our contract manufacturers violate laws or regulations or experience financial difficulty, delays, disruptions, capacity constraints or quality control problems, our ability to ship products to our customers could be impaired and our competitive position and reputation could be harmed. Further, if we or our contract manufacturers are unable to negotiate with suppliers for reduced material or component costs, our operating results could be harmed.

In addition, our contract manufacturers may terminate our agreements with them, including immediately if we become insolvent or fail to perform a material obligation under the agreements. If we are required to change contract manufacturers or assume internal manufacturing operations, we will likely suffer manufacturing and shipping delays, lost sales, increased costs and damage to our customer relationships, any of which would harm our business, financial condition and operating results.

Our products could contain defects, which would increase our costs and seriously harm our business, financial condition, operating results and customer relationships.

Many of our products are inherently complex in design and, in some cases, require extensive customization and/or ongoing regular maintenance. Further, manufacturing these products often involves a highly complex and precise process, specially qualified materials or components that conform to stringent specifications, and highly skilled labor. As a result of the technical complexity of these products, design defects, skilled labor turnover, changes in our or our suppliers' manufacturing processes or the inadvertent use of defective or nonconforming materials or software by us or our suppliers could adversely affect our manufacturing yields and product reliability. This could in turn harm our business, operating results, financial condition and customer relationships.

We provide warranties for our products, and we accrue reserves for estimated warranty costs at the time we recognize revenue for the sale of the products. The determination of such reserves requires us to make estimates of product return rates and expected costs to repair or replace the products under warranty. We establish warranty reserves based on historical warranty costs for our products. If actual return rates or repair and replacement costs significantly exceed our estimates, our operating results would be negatively impacted.

Our customers may discover defects in our products after the products have been fully deployed and operated under peak stress conditions. In addition, some of our products are combined with other suppliers’ products, which may contain defects. Further, some of our customers use our products in ways other than their intended purpose. As a result, it may be difficult to identify the source of a customer’s problem. If we are unable to promptly identify and fix defects or other problems, we could experience, among other things:

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Loss of customers;

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Increased costs of product returns and warranty expenses;

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Increased costs required to analyze and mitigate the defects or problems;

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Damage to our reputation;

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Failure to attract new customers or achieve market acceptance;

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Diversion of development, engineering and service resources; and/or

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Legal action by our customers or their customers.

The occurrence of any of these factors could seriously harm our business, financial condition and operating results.

Chemical manufacturing is inherently hazardous and could result in accidents that disrupt our operations or expose us to significant losses or liabilities.

The hazards associated with chemical manufacturing and the related storage and transportation of chemical raw materials, products and waste are inherent to our specialty chemicals operations. These hazards could lead to an interruption or suspension of operations and have a material adverse effect on the productivity and profitability of a particular manufacturing facility or on our business as a whole. Potential risks include storage tank leaks and ruptures, explosions and fires, and chemical spills and other discharges or releases of toxic or hazardous substances or gases. These risks could be caused or exacerbated by mechanical failures, unscheduled downtime, labor difficulties, transportation interruptions, inclement weather, natural disasters, cybersecurity breaches or terrorist attacks. These hazards may result in personal injury and loss of life, damage to property, and contamination of the environment, which may result in an interruption or suspension of operations, the imposition of civil or criminal fines, penalties and other sanctions, cleanup costs, and claims by our employees, governmental entities or third parties. We are dependent on the continued operation of our production facilities, and the loss or shutdown of operations at any of our major operating facilities could have a material adverse effect on our business, financial condition and operating results.

We outsource a number of services, including certain IT systems and systems management, logistics, contract manufacturing, payroll and tax functions, to third-party service providers. While outsourcing arrangements may lower our cost of operations, they also reduce our direct control over the services rendered. This diminished control may have an adverse effect on the quality or quantity of services rendered, our ability to quickly respond to changing market conditions, or our ability to ensure compliance with all applicable laws and regulations. If we do not effectively develop and manage our outsourcing strategies, if required export and other governmental approvals are not timely or accurately obtained, if our third-party service providers do not comply with laws, perform as anticipated or adequately protect our data, including from cybersecurity breaches, or if there are delays or difficulties in enhancing business processes, we may experience operational difficulties, increased costs, manufacturing or service interruptions or delays, loss of IP rights or other sensitive data, quality and compliance issues, and challenges in managing our product inventory or recording and reporting financial and management information, any of which could materially and adversely affect our business, financial condition and operating results.

The loss of net revenues from any of our major customers would likely have a material adverse effect on us.

Our top ten customers accounted for approximately 35%, 32% and 30% of our net revenues for 2025, 2024 and 2023, respectively. In any reporting period, these customers may contribute an even larger percentage of our consolidated net revenues. The loss of any of these customers or a significant reduction in orders by these customers, including due to economic, market or competitive conditions, regulatory requirements, or failure to meet customer demands, would likely have a material adverse effect on our business, financial condition and operating results. None of our significant customers have entered into an agreement with us that requires them to purchase any minimum quantity of our products.

Attempts to offset the loss or reduction of net revenues through the rapid addition of new customers would be difficult because a relatively small number of companies dominate the semiconductor and electronics manufacturing industries. Further, prospective customers typically require lengthy qualification periods prior to placing volume orders with a new supplier. Our success will continue to depend upon:

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Our ability to maintain relationships with existing key customers;

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Our ability to attract new customers and satisfy any required qualification periods;

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Our ability to introduce new products in a timely manner for existing and new customers;

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The ability of our original equipment manufacturer (“OEM”) customers to create demand for their capital equipment products that incorporate our products; and

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Our ability to gain significant customers and business in new, emerging segments of our markets.

Key personnel have been, and may continue to be, difficult to attract and retain.

Our ability to maintain and grow our business is directly related to our ability to hire, train, retain and motivate qualified employees, who we consider to be a significant asset. There is significant competition for personnel in the technology and sciences

marketplace, particularly in certain geographies where we are located, including the Boston, Massachusetts area, Orange County and the San Francisco Bay area of California, Berlin, Germany, Gurgaon, India, Tokyo, Japan, Penang, Malaysia, Bangkok, Thailand, and Singapore. It can be particularly challenging to identify, attract and retain employees possessing the deep technical expertise required to manage our product manufacturing processes and product services. We have also experienced, and may continue to experience, attrition in certain key positions. For example, Seth H. Bagshaw, our former Executive Vice President, Chief Financial Officer and Treasurer, retired in April 2024, and his successor, Ramakumar Mayampurath, did not begin his employment until October 2024. A related challenge is that a significant portion of our technical talent is nearing retirement age, and we may have difficulty training our existing workforce or hiring qualified employees to replace them. If we are unable to hire qualified employees or retain and motivate existing employees, our business and operating results would be harmed.

We are in the early stages of integrating AI into our business and operational processes and continue to explore new uses. AI technologies are complex and rapidly evolving. They may be difficult and costly to implement and govern, with no assurance that our investments in AI will deliver anticipated benefits. Our competitors may adopt or leverage AI more quickly or effectively, achieving greater benefits, which could potentially diminish our market position.

AI tools can produce outputs that are erroneous, misleading, biased, or otherwise flawed due to inaccurate, incomplete, or skewed training data, algorithms, or methodologies. Reliance on AI outputs without adequate human oversight and control mechanisms may lead to operational inefficiencies or disruptions, poor business decisions or reputational damage.

Our use of AI raises significant IP, data protection and privacy, cybersecurity, and ethical considerations. Improper development, deployment or use of AI tools by our employees or business partners would increase the risk of loss of confidential or proprietary information, complicate assertion or enforcement of IP rights, introduce defects or malware into our products or business systems, or expose us to claims of infringement, misappropriation, or other violations of third-party rights, including individual rights such as privacy rights. Reliance on third-party vendors that use AI may introduce additional implementation, security, and compliance risks.

The legal and regulatory landscape governing AI is dynamic, with evolving frameworks addressing data protection and privacy, IP, and responsible AI practices. Compliance may be costly and require significant resources and could restrict certain AI applications or limit our ability to deploy AI capabilities. Failure to anticipate, implement, and maintain appropriate governance and risk management controls, or to comply with applicable laws and standards, could result in sensitive data loss, regulatory scrutiny, legal liability, increased costs, or reputational damage.

Risks Related to Our Industries and Markets

The semiconductor, electronics manufacturing and automotive industries we serve are characterized by periodic fluctuations in business activity that may cause a reduction in demand for our products.

Our business depends upon capital expenditures of semiconductor device manufacturers (which in turn depends upon demand for semiconductors), electronics manufacturers and Tier 1 and Tier 2 suppliers for the automotive industry. These industries have historically experienced cyclical variations in product supply and demand. For example, our year-over-year sales to semiconductor capital equipment manufacturers and semiconductor device manufacturers increased 13% in 2025, increased 1% in 2024 and decreased 28% in 2023. These sometimes sudden and severe cycles can result from many factors, including overall consumer and industrial spending, demand for electronic products that drive manufacturer production, manufacturers' capacity utilization, new product introductions, demand for customers' products, inventory levels relative to demand, access to affordable capital, labor conditions, commodity prices, energy costs, and, most recently, accelerated investment in AI. The timing, severity and duration of these cycles are difficult to predict, and we may not be able to respond effectively to these cycles.

During downturns in the semiconductor and electronics manufacturing industries, periods of overcapacity have significantly reduced demand for our products, which may result in lower gross margins due to reduced absorption of manufacturing overhead, as our ability to rapidly and effectively reduce our cost structure in response to such downturns is limited by the fixed nature of many of our expenses in the near term. During downturns in the automotive industry, we have experienced a similar effect on the gross margins of the general metal finishing reporting unit of our Materials Solutions Division (“MSD”). Further, our ability to reduce our long-term expenses is constrained by our need to invest in next-generation product technology and to support and service our products. In addition, due to the relatively long manufacturing lead times for some of our products, we may incur expenditures or purchase raw materials or components for products we are unable to sell. As a result, downturns in these industries may materially harm our business, financial condition and operating results. Conversely, during upturns in these industries, we may have difficulty rapidly and effectively increasing our manufacturing capacity to meet sudden increases in customer demand. If we fail to do so, we may lose business to our competitors and our relationships with our customers may be harmed.

We operate in highly competitive markets characterized by rapid technological advances, frequent product introductions and enhancements, changing customer requirements, evolving industry standards, substantial capital investment and increasing price pressure. Our success depends upon our ability to continuously develop, market and support superior products, processes and solutions. Factors that could harm our competitive position include:

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Our failure to anticipate demand for and internally develop or acquire new, improved and disruptive technologies;

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Our investment in emerging applications that do not achieve widespread adoption or significant growth;

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Delays in introducing new, enhanced and differentiated products, many of which are difficult to design and manufacture because of their technical sophistication and complexity;

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Inadequate manufacturing capabilities, customer service or support;

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Semiconductor device manufacturers failing to direct semiconductor capital equipment manufacturers to use our products at their semiconductor fabrication facilities;

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Global electronics OEMs failing to specify our products in their manufacturing processes for the rigid printed circuit board manufacturers they use;

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Customers failing to achieve market demand for their products that incorporate our technologies;

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Efforts of customers to internally develop products that compete with our technologies or to engage subcontract manufacturers or system integrators to manufacture competitive products on their behalf;

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Implementation by our customers of dual source strategies, after historically relying on sole or limited source suppliers;

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Competitors that develop products that offer superior performance, technological features or value than our products;

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Competitors with greater financial, technical, marketing and other resources, including ownership by or affiliations with members of government, political entities or larger, multinational businesses, which may offer a number of competitive advantages, such as the ability to incur lower costs due to control over sources of components and raw materials or exclusive agreements with suppliers thereof;

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Competitors with greater recognition and stronger presences in specific product niches and/or regions, including in the specialty chemicals industry;

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Competitors, particularly in Asia, that are able to develop low-cost competitive products;

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Difficulties in displacing competitors' products that are designed into customers' products;

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Pricing pressure from customers and competitors, particularly new competitors that offer aggressive price and payment terms in an attempt to gain market share, and especially during cyclical downturns in our markets, when end-markets become more sensitive to costs and competitors are more likely to seek to maintain or increase market share, reduce inventory or introduce more technologically advanced or lower-cost products;

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Competitors that are able to adopt new technologies and technological advancements using AI and machine learning to pursue new products and approaches more quickly, successfully and effectively than us;

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Industry consolidation among competitors, which could exacerbate certain of these factors; and

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Regulatory changes that prevent or restrict the supply of our products and services to a particular industry, market or country, or impose tariffs on our supplies or products, but that do not equally impact the products of our competitors.

Certain of these factors could cause customers to defer or cancel orders for our products and/or place orders for our competitors' products. This is particularly significant to us, as our success depends on many of our products being designed into new generations of equipment and manufacturing processes. Certain markets in which we operate, such as the semiconductor capital equipment market and the mobile phone market, which is part of our electronics and packaging market, experience cyclicality and unevenness in capital spending. If we are unable to introduce new products in a timely manner or are otherwise unsuccessful in making sales to customers, we may miss market upturns or fail to have our products or subsystems designed into our customers' products. For example, new products designed by capital equipment manufacturers historically have had a lifespan

of five to fifteen years. We must develop products that are technologically advanced in a timely manner so that they are positioned to be chosen for use in each successive generation of capital equipment.

These factors could also prompt us to agree to pricing concessions or extended payment terms with our customers, in an effort to expand into new markets, gain volume orders or improve customer cost of ownership in highly competitive applications. In other cases, we may discontinue selling certain products if we cannot offset price erosion through shifts in operations.

Finally, these factors could render the portfolios of products or lines of business from which we generate significant net revenues obsolete. For example, we have lost business to customers who identify alternative materials or processes and therefore no longer require as much or any specialty chemicals. If our customers or the industries we serve shift to other technologies, our business, financial condition and operating results would be harmed.

We offer products for multiple markets and must face the challenges of supporting the distinct needs of each of the markets we serve.

Because we operate in multiple, diverse markets, we must understand the needs, standards and technical requirements of many different applications and must devote significant resources to developing many different products. Product development is costly and time consuming. We must anticipate trends in our customers' industries and develop products before our customers' products and processes are commercialized. If we do not anticipate our customers’ needs and activities, we may invest substantial resources in developing products that do not achieve broad market acceptance. Our growth prospects rely in part on successful entry into new markets, which depends on displacing competitors who are more familiar with these markets and better known to customers. In many cases, we are attempting to enter or expand our presence in these new markets with newly introduced products that are not yet proven in the industry. If our product offerings are not competitive, our market analyses are incorrect or our sales and marketing approach is ineffective, we may not achieve anticipated growth rates in a particular market, and our business, financial condition and operating results would be harmed.

Further, serving diverse markets requires an understanding of different sales cycles and customer types, and the development and maintenance of a complex global sales team and sales channels to support each market’s differing needs. It also requires dynamic operations that can support both complex, customized product builds as well as quick turn-around for commercial off-the-shelf sales. If we fail to provide sales and operational support for our diverse markets, our business, financial condition and operating results would be harmed.

Risks Related to Operating a Global Business

We face significant risks associated with doing business internationally.

We face significant risks from our substantial operations in, sales to, and purchases from international markets. Our presence and operations in international markets, and the risks associated with doing business internationally, may continue to change and will likely increase if our business grows. In addition, since early 2025, geopolitical tensions have escalated, creating additional political and economic uncertainty. These risks, many of which we have experienced, include:

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Adverse changes or instability in political or economic conditions in countries or regions where we and our customers and suppliers are located, including currency devaluations, debt defaults, lack of liquidity and recessions;

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Challenges of administering our diverse business and product lines globally;

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Actions of government regulatory authorities, including embargoes, sanctions (including “anti-blocking” rules), executive orders, import, export, and reexport restrictions, antiboycott laws, tariffs (including anti-dumping and countervailing duties), currency controls, trade restrictions and trade barriers (including retaliatory actions), license requirements (including license-specific restrictions and provisos), citizenship requirements, nationality restrictions, environmental requirements and other rules and regulations (including extraterritorial rules and regulations) applicable to the manufacture, import, export, reexport or end-use of our products, all of which may be complicated and conflicting, require significant investments in cost, time and resources for compliance, negatively impact revenues and margins, and impose strict and severe penalties for non-compliance;

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Political and social attitudes, laws, rules, regulations and policies within countries that favor domestic companies over non-domestic companies, including customer- or government-supported efforts to promote the development and growth of local competitors;

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Greater risk of violations of U.S. and international laws and regulations, including anti-corruption and trade laws, and our code of conduct, by our employees, sales representatives, distributors or other agents;

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Ambiguous or vague laws that make collecting payments or seeking recourse difficult;

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Increased credit risk and differing financial conditions of customers and distributors, resulting in longer accounts receivable collection periods and payment cycles, increased bad debt write-offs and additions to reserves;

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Overlapping, burdensome and differing tax structures and laws;

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Potential for certain tax benefits to be revoked or reclaimed;

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Reduced, inconsistent or differing protection of IP, including unequal recognition and treatment of multi-national corporations’ rights by hostile or indifferent governments;

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Increasingly stringent privacy, security, consumer and data protection laws, such as the EU General Data Protection Regulation, the Data Security Law of China and the China Personal Information Protection Law;

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Shipping, logistics and other supply chain complications or cargo security requirements, including forced-labor mitigation rules and increased shipping costs related to security disruptions in traditional shipping lanes;

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Adverse currency exchange rate fluctuations;

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Restrictions on currency conversion or the transfer of funds, including restrictions on certain financial institutions themselves;

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Compliance costs, withholding taxes and legal and contractual restrictions associated with repatriating overseas earnings;

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Increased risk of exposure to significant health concerns, including pandemics;

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Differences in business practices, culture, language and management style;

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Complex, burdensome and differing labor and employment laws and practices;

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Changing labor conditions and difficulties staffing, managing, and rationalizing our foreign operations, including rising wages and other labor costs, retention of employees, the formation of labor unions and works councils and the maintenance of defined benefit pension plans;

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Nationalization or other expropriation of private enterprises or land;

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Involuntary geopolitical annexations or accessions through military force or otherwise, including, for example, any actions by China to take control over Taiwan, and the implications any such action would have on our customers, other partners, and the global semiconductor ecosystem; and

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Increased risk of exposure to civil unrest, terrorism, government sanctioned and non-government sanctioned acts of violence, and military activities.

If we experience any of the risks associated with doing business internationally, our business, financial condition and operating results could be significantly harmed.

We have significant facilities and operations and a considerable number of employees in Israel. A number of our products are manufactured in facilities located in Israel. If the Israel-Hamas war resumes or if other regional conflicts begin or escalate, our operations in Israel could be significantly disrupted, including due to the absence of local employees called for military duty or damage to or the destruction of local facilities. More broadly, the future of peace efforts between Israel and its neighboring countries remains extremely uncertain. Further armed conflicts or political instability in the region could similarly negatively affect our business. Any such disruptions could adversely affect our business, financial condition and operating results.

The U.S. government continues to take action against certain of our customers, particularly certain customers located in Asia, including restrictions on doing business with these customers (or restrictions on third parties from engaging designated entities), including the suspension of our ability to fill outstanding orders. These actions have caused us, and could in the future cause us, to lose anticipated revenue from product sales, the amount of which could be significant. In addition, these or other customers have purchased, and will likely continue to purchase, products from unaffected non-U.S. competitors, even when trade restrictions are not in place, jeopardizing our long-term relationship with them. Further, compliance with regulatory restrictions may cause us to breach contractual obligations, which could result in costs, penalties and litigation.

Additionally, potential customers in certain countries, particularly in Asia, have a strong preference for, and are increasingly legally required to procure, technology and products developed by suppliers based in their home countries. The trade dispute between the U.S. government and the Chinese government has reinforced and broadened this preference and these requirements, as potential and existing customers seek to avoid the uncertainty related to the trade dispute. While we have attempted to mitigate these issues by establishing a significant local presence in many of these countries, companies like us that are based elsewhere remain at a disadvantage in these markets.

We face significant risks associated with doing business in China in particular.

As a result of our extensive presence in China, we are subject to the following significant risks:

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Adverse changes in Chinese political, economic or social conditions or Chinese laws, regulations or policies, including the imposition of unexpected or confiscatory taxation, restrictions on currency conversion, imports and sources of supply, devaluations of currency, the nationalization or other expropriation of private enterprises, or the reversal of economic reform policies that encourage private economic activity, foreign investments and greater economic decentralization;

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Differing economic practices compared to most developed countries, including with respect to the amount of government involvement, control of foreign exchange and allocation of resources;

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Uncertainties presented by the Chinese legal system, which is not fully integrated and continues to rapidly evolve, impeding our ability to interpret certain Chinese laws and regulations, predict and evaluate the outcome of administrative and court proceedings and the level of legal protection in China and enforce contracts we have entered into in China;

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Chinese controls on the convertibility of Renminbi into foreign currencies and, in certain cases, the remittance of currency out of China, restricting our ability to remit sufficient foreign currency to repay outstanding indebtedness, pay dividends or make other payments to us, or otherwise satisfy foreign currency-denominated obligations; and

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The escalation of trade tensions between China and other countries, including the United States, and the imposition of tariffs, sanctions and export controls by various government agencies, has impacted international trade. Notably, as discussed in greater detail below, the U.S. government imposed tariffs on certain imports from China in 2018 and 2019, and China responded by imposing its own retaliatory tariffs. In early 2025, the U.S. government increased trade tensions with China by imposing additional tariffs on certain imports from China. In addition, as discussed in greater detail below, the U.S. government has implemented export restrictions and national security reviews on semiconductor technologies related to China, which has disrupted, and could further disrupt, existing partnerships and limit market opportunities within the Chinese market. These reviews and restrictions may lead to challenges in accessing markets or curtail investment prospects. In response, China has announced reciprocal and retaliatory actions, including tariff and non-tariff actions such as export restrictions on certain materials. Even as tensions ease from time to time, the complex and volatile, evolving nature of these regulations and policies further elevates the risk of non-compliance, and there can be no assurance we will be able to fully offset all related increased costs or mitigate the financial and competitive impacts of such tariffs and trade restrictions.

If we experience any of the risks associated with doing business in China, our business, financial condition and operating results could be significantly harmed.

Unfavorable currency exchange rate fluctuations may lead to lower operating results or may cause us to change customer pricing, which could result in reduced sales and losses.

Although we report our financial position and operating results in U.S. dollars, a significant portion of our net revenues are from customers in international markets where we invoice in currencies other than the U.S. dollar, and we have facilities where costs are incurred in currencies other than the U.S. dollar. In addition, we carry certain assets and liabilities in currencies other than the U.S. dollar. Our indebtedness includes a Euro tranche, the outstanding balance of which was €587 million as of February 4, 2026, and €1.0 billion aggregate principal amount of the 2034 Notes. Currency exchange rate fluctuations could have an adverse effect on our assets, liabilities, net revenues, expenses and operating results and we could experience losses with respect to our hedging activities. Unfavorable exchange rate fluctuations could require us to increase or decrease prices to customers, which could result in lower net revenues from such customers. Alternatively, if we do not adjust the prices for our products in response to unfavorable currency fluctuations, our operating results could be adversely affected by declining net revenues or profit margins for our products. Such exchange rate fluctuations could also increase the costs and expenses of our non-U.S. operations when translated into U.S. dollars or require us to modify our current business practices. In addition, most sales made by our foreign subsidiaries are denominated in the currency of the country in which these products are sold and the currency they receive in payment for such sales could be less valuable on a U.S. dollar basis at the time of receipt as a result of exchange rate fluctuations. We enter into foreign exchange forward contracts to reduce a portion of our currency exposure arising from intercompany sales of inventory as well as intercompany accounts receivable and intercompany loans. However, our efforts may not protect us from significant exchange rate fluctuations or other exchange rate risks.

Legal, Tax, Regulatory and Compliance Risks

in the future. Any failure to maintain the adequacy of this internal control may adversely affect our operating results, our stock price and investor confidence in our Company.

We previously identified a material weakness in our internal control over financial reporting that was remediated as of December 31, 2023. We may in the future identify additional internal control deficiencies that could rise to the level of a material weakness or uncover other errors in financial reporting. If we fail to remediate any future material weaknesses or maintain effective internal control over financial reporting, our ability to accurately record, process, and report financial information and, consequently, our ability to prepare financial statements within required time periods could be adversely affected. Failure to maintain effective internal controls could result in a failure to comply with SEC rules and regulations, stock exchange listing requirements, and the covenants under our debt agreements, subject us to litigation, investigations or enforcement actions, negatively affect investor confidence in our financial statements, and adversely impact our stock price and ability to access capital markets. The defense of any such claims, investigations or enforcement actions could divert our attention and resources and could cause us to incur significant legal and other expenses even if the matters are resolved in our favor.

Following a period of extreme escalation in early 2025, where U.S. duties on Chinese imports reached a peak of 145% (inclusive of a 125% reciprocal tariff and a 20% fentanyl-related surcharge), the trade environment has transitioned into a complex, multi-layered duty regime. As of January 2026, we remain subject to a combined 20% International Emergency Economic Powers Act (“IEEPA”)-based baseline duty on Chinese imports (10% reciprocal and 10% fentanyl-related), which stacks upon existing Section 301 duties, standard most-favored-nation rates as well as applicable Section 232 duties. Beyond China, the U.S. government has transitioned the 10% IEEPA baseline into a permanent Reciprocal Tariff Schedule, affecting nearly all global imports. This regime imposes variable, country-specific duties that fluctuate based on the perceived “reciprocity” of a trading partner's own tariff walls. In February 2026, the U.S. Supreme Court held that the IEEPA does not authorize the U.S. President to impose tariffs, invalidating both the “reciprocal” tariffs and the country-specific tariffs. However, the U.S. President took steps to impose new tariffs under other authorities.

Separately, in April 2025, the U.S. Department of Commerce initiated an investigation under Section 232 of the Trade Expansion Act of 1962 into the national security implications of imports of semiconductors, semiconductor manufacturing equipment, and their derivative products and concluded that additional tariffs on specific covered products are appropriate, subject to several end-use exemptions.

The U.S. government has also imposed global tariffs on certain critical raw materials, including steel, aluminum, and copper, and certain products, such as passenger vehicles and light trucks. Further, the Chinese government has imposed trade restrictions on certain rare earth elements critical to many advanced manufacturing, computing and defense applications and has implemented extra-territorial controls on items produced outside of China that are made with such elements. The continuation or expansion of the scope or amount of such global raw material or product-based tariffs or restrictions could significantly increase our costs or have an adverse effect on the end markets we support. Attempts to mitigate the impact of tariffs could cause us to sub-optimize operations, increasing our cost to operate. Tariffs have increased, and will continue to increase, the cost of our materials and lead us to apply surcharges or raise prices, which could reduce demand for our products. Customers and end-users may delay, reduce, or cancel spending on projects involving our products, negatively impacting demand and our financial results. Our mitigation efforts and price increases may not fully offset the impact of tariffs and may result in lowering our margin on products sold. If the U.S. government expands or adopts additional tariffs, or if other countries retaliate, the resulting trade barriers could have a significant adverse impact on our suppliers, our customers and on our business. The volatility and unpredictability of international trade policies and conditions add further complexity to our operations, making it challenging to forecast and plan effectively. We cannot predict the future trade policy of the United States or of any foreign countries in which we operate or purchase goods, or the terms of any trade agreements or their impact on our business. The continued adoption and expansion of tariffs, quotas and embargoes, the occurrence or threat of a trade war or other governmental action related to tariffs or trade agreements or policies, has the potential to adversely impact demand for our products, our costs, our customers, our suppliers and the world and U.S. economies, which in turn could have a material adverse effect on our business, operating results and financial condition.

In addition, “Entity List” designations and “military end-user” controls have been significantly expanded, as have some rules relating to items produced outside the United States that incorporate more than de minimis levels of U.S. controlled content or that are derived from (i.e., the “direct product” of) U.S. origin technologies, equipment or software. In October 2022, the U.S. Department of Commerce’s Bureau of Industry and Security (“BIS”) implemented new and novel restrictions related to end-uses in semiconductor, semiconductor manufacturing, supercomputer, and advanced computing, along with certain equipment used to develop and produce them, as well as controls around the activities of U.S. persons in certain markets, including China. These regulations, which BIS has amended several times since initial publication (as amended, the “BIS Rules”), have resulted in, and

may in the future result in, loss of business, both directly to China end-customers, and indirectly through our OEM customers, as well as additional export license requirements on shipments of our products, parts and supplies, and associated increased administrative burdens. For example, as a result of the initial BIS Rules promulgated in late 2022, we experienced an annual loss in net revenues of approximately $200 million to $250 million, most of which was realized in 2023. The extraordinary complexity of these rules, combined with their continued modification and the likelihood of further amendments from BIS, significantly increases our risk of non-compliance, which could result in fines and other penalties, and could change how these rules impact us. The U.S. government and other government agencies may promulgate new or additional export licensing or other regulations that have the effect of further limiting our ability to provide certain products and services to customers outside the United States, including China. The U.S. government may also revise or expand existing regulations or issue guidance clarifying the scope and application of these requirements, which could change the impact of these rules on our business and manufacturing operations. While we continue to adjust our policies and practices to ensure compliance with these regulations, and seek to mitigate their impact, there can be no assurances that current or future regulations, by the United States or other countries, will not have a material adverse effect on our business.

Since the beginning of 2019, regulatory changes have been implemented at an unprecedented pace, which increases the resources needed to monitor and comply with regulations, while heightening the risk of non-compliance. Such regulatory changes include the addition by BIS of China-based Huawei Technologies Co., Ltd. (“Huawei”), Semiconductor Manufacturing International Corporation (“SMIC”), Yangtze Memory Technologies Corp (“YMTC”), NAURA Technology Group, Piotech, Inc. and many of their respective affiliates onto its Entity List. Accordingly, we have implemented additional monitoring processes and suspended orders from these companies as well as other designated Chinese-based customers, where those orders are subject to U.S. jurisdiction. We were previously negatively impacted by the cancellation of orders from customers who are suppliers to these firms, and we could be negatively impacted in the future by further amendments to the Entity List. In addition, BIS has modified the Foreign Direct Product, De Minimis and “military end-use” rules, expanded the scope of products and technologies that would require licenses for military end-uses, primarily in China, and expanded the list of “military end users,” mostly in China, further limiting our sales. At the same time, BIS and the U.S. Department of Defense have also added numerous China-based companies, including companies with which we do business, to the “Unverified List,” and “Chinese Military Companies” list, respectively. Placement on such lists may be an indication of additional future restrictions by the U.S. government, as was the case with YMTC, which was added to the Unverified List in October 2022 and was then added to the Entity List in December 2022.

Increased restrictions on China have led to and may continue to lead to regulatory retaliation by the Chinese government and further escalate geopolitical tensions between China and Taiwan. For example, in 2019, China’s Ministry of Commerce announced an “unreliable entity list” under which non-Chinese entities that cut off supply to Chinese companies may be subject to government action. Because many of the mechanisms for being named to the list, removed from the list, and enforcement remain ill-defined, the potential impacts of the regulation remain unknown. In addition, in 2023, China adopted export curbs on crucial raw materials, including gallium, germanium, and graphite, that had both direct and indirect adverse impacts on our business and supply chain. In December 2024, the Chinese Ministry of Commerce imposed stricter export control restrictions on the export to the United States of gallium, germanium and other materials with potential dual-use applications, thereby increasing the adverse impact on our business, costs and supply chain. In April 2025, China implemented new export restrictions on certain rare earth minerals, including yttrium, which is a critical component used in the manufacturing of our lasers. As a result, we expect to encounter challenges in sourcing this and other critical materials, along with higher costs and potential supply chain disruptions, which may materially harm our business, financial condition and operating results. Additionally, as a result of Chinese extra-territorial controls, we expect increased compliance burdens and risk of violations, which also have the potential to harm our business, financial condition and operating results.

The ongoing geopolitical tensions and economic uncertainty between the United States and its trading partners caused by recent tariffs, Entity List and “military end user” designations, foreign-made product rules and the BIS Rules, and the unknown impact of current and future trade regulations, may continue to increase costs, as well as restrict our ability to sell, or decrease demand from customers to purchase, our products, directly and indirectly, which could materially harm our business, financial condition and operating results. This trade uncertainty has caused, and may continue to cause, customers to delay or cancel orders, as they mitigate the risk to their own supply chain and cost exposure by sourcing from locally based suppliers or suppliers based in other countries. Such delays and cancellations could have a material impact on our business, financial condition and operating results. It is possible that additional trade restrictions will be imposed, and that existing tariffs will be increased on imports of our products or the components used in our products and/or that our business will be impacted by additional retaliatory tariffs, policies that favor domestic industries, or restrictions imposed and/or increased by China or other countries in response to existing or future tariffs. These developments could cause us to lose additional sales and customers, incur increased costs and lower margins, seek alternative suppliers, raise prices or make changes to our operations, any of which could materially harm our business, financial condition and operating results.

We are subject to international trade compliance regulations, and violations of those regulations could result in fines or trade restrictions, which could have a material adverse effect on us.

We are subject to trade compliance laws in the United States and other jurisdictions where we operate. For example, exports of our products and technology developed or manufactured in the United States are subject to export controls imposed by the U.S. government and administered by the U.S. Departments of Commerce and, to a lesser extent, State and Treasury. Export regulations govern exports of our products and technology developed or manufactured in other countries, including, for example, Austria, China, France, Germany, Israel, Romania and Singapore. In certain instances, these regulations may require us to obtain a license prior to exporting products or technology to international locations or foreign nationals, including foreign nationals employed by us in the United States and abroad. For products and technology subject to the U.S. Export Administration Regulations administered by BIS, the requirement for a license is dependent on the type, end use and final destination of the product and technology and the identity and nationality of the end user. Virtually all exports from the United States of defense articles are subject to the International Traffic in Arms Regulations, administered by the Department of State’s Directorate of Defense Trade Controls, and require a license. The Israeli Ministry of Economy and the Defense Export Control Agency of the Israeli Ministry of Defense administer similar export regulations and license requirements, which apply to many of our products and technology developed or manufactured in Israel. In addition, the Romanian Ministry of Foreign Affairs and the Department for Export Controls administer similar export regulations and license requirements, which apply to many of our products and technology developed or manufactured in Romania. Obtaining export licenses can be difficult and time-consuming, and we may not be successful in obtaining them. In addition, since early 2025, export licenses have taken a significantly longer time to be granted. Failure to obtain, or timely obtain, export licenses to enable product and technology exports could reduce our net revenues, harm our relationships with our customers and could adversely affect our business, financial condition and operating results. Compliance with export regulations requires resources and may also subject us to additional fees and costs. The absence of comparable export restrictions on competitors, whether due to technical specifications or such competitors’ geography, either with respect to their place of incorporation or the location of their operations, may adversely affect our competitive position.

In addition, if we or our international representatives or distributors fail to comply with export regulations, we or they could be subject to civil and criminal and monetary and non-monetary penalties and costly consent decrees, and we could experience disruptions to our business, restrictions on our ability to export products and technology, damage to our reputation and significant harm to our business and operating results. We are constantly engaged in systematic, risk-based reviews of our compliance-related activities to identify and remediate known and suspected weaknesses, such as product export classification. In connection with these reviews, we periodically identify certain activities that are non-compliant with applicable trade regulations and submit appropriate voluntary disclosures to applicable authorities to report such non-compliance. While such instances of non-compliance have not had a material adverse impact on us to date, other reported non-compliance may have a different effect. Additionally, while we have implemented, and continue to implement and optimize, policies and procedures to comply with these laws, we cannot be certain that our employees, contractors, suppliers or agents will not violate such laws or our policies.

Changes in tax rates or tax regulation or the termination of tax incentives could affect our operating results.

As a global company, we are subject to taxation in the United States and various other countries. Significant judgment is required to determine and estimate worldwide tax liabilities. Our future annual and quarterly effective tax rates could be materially affected by numerous factors, including changes in applicable tax laws; the organizational structure of our business, including reorganizations, location of assets and outstanding indebtedness; composition of pre-tax income in countries with differing tax rates; our determinations of tax liabilities; and/or valuation of our deferred tax assets and liabilities.

Changes in U.S. tax law, such as the One Big Beautiful Bill Act, and changes in regulations and tax guidance may affect our business. Additionally, the United States is considering various corporate and international income tax proposals, which, if enacted, could have a material impact on our provision for income taxes and effective tax rate.

We are subject to regular examination by the U.S. Internal Revenue Service and state, local and foreign tax authorities. We regularly assess the expected outcome of these examinations to determine the adequacy of our provision for income taxes. Although we believe our tax estimates are reasonable, we can make no assurances that any final determination of tax liability will not be materially different from the treatment reflected in our historical income tax provisions and accruals, which could materially and adversely affect our financial condition and operating results.

We qualify for tax incentives based on our ability to meet, on a continuing basis, various tests relating to our employment levels, research and development expenditures and other qualification requirements in a particular jurisdiction. While we intend to operate in such a manner to maintain and maximize our tax incentives, we can make no assurances that we have so qualified, or that we will qualify, for tax incentives for any particular year or jurisdiction. If we fail to qualify or remain qualified for certain tax incentives, the tax incentives we previously received may be terminated and/or retroactively revoked, requiring repayment of past tax benefits, and we would be subject to an increase in our effective tax rate, which could have a material adverse impact on our financial results.

As a manufacturer of specialty chemicals, we are subject to chemical approvals, registrations and regulations around the world, including European Union Regulations on Registration, Evaluation, Authorisation and Restriction of Chemicals (“EU REACH”) in the EU, the Toxic Substances Control Act (“TSCA”) in the United States, and similar laws and regulations in certain other jurisdictions in which we and our customers operate. In recent years, changes to existing laws and regulations and the adoption of new laws and regulations have imposed new obligations, including restrictions and prohibitions on highly hazardous substances, that could force us to reformulate or discontinue certain of our products.

Governmental and societal demands for greater product safety and environmental protection have increased pressure for more stringent regulatory control with respect to the chemical industry, including with respect to manufacturing, importing and using chemicals. For example, EU REACH imposes comprehensive compliance obligations and establishes mechanisms to identify and restrict high-concern chemicals, and comparable regulatory requirements have been adopted in several other countries. As another example, in the United States, TSCA mandates risk evaluation of existing “high priority” chemicals. In addition, the U.S. Environmental Protection Agency (the “EPA”) must make a no “unreasonable risk” finding before a new chemical can be fully commercialized. In China, with the publication of the first, second and third batch of the List of Chemicals under Priority Control, the Ministry of Ecology and Environment has begun to implement restrictions and bans on the use of certain substances in a variety of industrial sectors. Additionally, the Technical Standards on Environmental Risk Assessment and Control of Chemical Substances (2024) impose comprehensive obligations with respect to the screening, determination and mitigation of risks of certain chemicals. These laws and regulations generally create uncertainty about whether existing chemicals important to our business may be designated for restriction and whether the approval process for new chemicals may become more difficult and costly. These changes could adversely impact our ability to supply certain products to our customers and could also result in compliance obligations, fines, ongoing monitoring and other future business activity restrictions, which could have a material adverse effect on our business, financial condition and operating results.

Perfluorooctanesulfonic acid and other per- and polyfluoroaklyl substances (“PFAS”) are chemical agents that have been targeted for risk assessment, restriction, regulation and high-priority remediation and are the subject of litigation and governmental investigations in the United States and other countries. For example, we have been named as a defendant in several lawsuits related to PFAS as a result of alleged environmental contamination by certain of our end customers involving their use and disposal of products containing PFAS, and we could become subject to additional lawsuits in the future. We have also received and responded to requests for information from U.S. regulatory agencies. While we have developed a suite of products that do not require any PFAS chemicals and, when adopted by the industry, will obviate the need for PFAS-containing mist suppressants and wetting agents, we sell a limited number of products that contain permissible levels of PFAS.

International environmental protection requirements, including chemical regulation requirements, and enforcement of these requirements, may become more stringent in the future and could result in material costs relating to regulatory compliance, liabilities, litigation proceedings, or other impacts, such as restrictions or prohibitions on our products. Future regulatory or other developments could also restrict or eliminate the use of, or require us to make modifications to, our products, packaging, manufacturing processes, transportation methods, and technology, which could have a material adverse effect on our business, financial condition, and operating results. Our production facilities require permits, such as environmental, operating, and product-related permits and import/export permits, which are subject to renewal and, in some circumstances, revocation. We may not obtain these permits or they may be discontinued or may contain significant and costly new requirements. If a permit for a production facility is not renewed or is revoked, the facility may need to be closed temporarily or permanently, which may have a material adverse effect on our business, financial condition and operating results. Failure to obtain or maintain permits for our facilities or other failures to comply with applicable environmental regulations could result in the shutdown of, or suspension of operations at, our plants.

Many of our customers are subject to the same or similar environmental regulations. The impact of these regulations on our customers and our customers' ability to comply with these regulations is outside of our control. However, non-compliance by our customers could have an indirect negative effect on our business and result in claims against us. We must monitor relevant chemical regulatory developments in order to limit the associated risks of new developments by triggering timely countermeasures, such as alternative products and phase-outs.

We are subject to environmental regulations. If we fail to comply with these regulations, our business could be harmed.

Our operations are subject to various federal, state, local and international laws and regulations relating to environmental protection, including the discharge of pollutants into the air, water and land, the reporting, generation, use, handling, storage, transportation, treatment and disposal of hazardous substances, waste and other materials and the cleanup of contaminated sites. In the United States, we are subject to the federal regulation and control of the EPA, and we are subject to regulations and controls of comparable authorities in other countries. Some of our operations, including our chemical operations, require environmental permits and controls to prevent and reduce air and water pollution, and these permits are subject to modification, renewal and revocation by issuing authorities. Future developments, administrative actions or liabilities relating to environmental matters, including sanctions such as capital expenditure obligations, clean-up and removal costs, long-term monitoring and maintenance

costs, costs of waste disposal, natural resource damages and payments for property damage and personal injury, could have a material adverse effect on our business, financial condition or operating results.

Although we believe that our safety procedures for using, handling, storing and disposing of such materials comply with the standards required by applicable federal, state, local and international laws and regulations, we cannot eliminate the risk of accidental contamination or injury from these materials, including risks related to our chemical products, which are inherently hazardous. We have been, and may in the future be, subject to claims by employees or third parties alleging contamination or injury, and could be liable for damages that could exceed the amount of our liability insurance coverage (if any) and the resources of our business. For example, we have been named as a defendant in a lawsuit alleging that we discharged industrial wastewater containing PFAS from one of our facilities into the local wastewater treatment plant which then entered the local water supply.

Certain portions of the soil at the former facility of our Spectra-Physics lasers business, located in Mountain View, California, and certain portions of the aquifer surrounding the facility, through which contaminated groundwater flows, are part of an EPA-designated Superfund site and are subject to a cleanup and abatement order from the California Regional Water Quality Control Board. Spectra-Physics, which we acquired as part of our acquisition of Newport Corporation (“Newport”) in April 2016 (the “Newport Acquisition”) and which had been acquired by Newport in 2004, along with other entities with facilities located near the Mountain View, California facility, were identified as responsible parties with respect to this Superfund site, due to releases of hazardous substances during the 1960s, 1970s and 1980s. Spectra-Physics and the other responsible parties entered into cost-sharing agreements covering the costs of remediating the off-site groundwater impact. The site is mature, and investigations, monitoring and remediation efforts by the responsible parties have been ongoing for approximately 35 years. We have certain ongoing costs related to investigation, monitoring and remediation of the site that have not historically been material to us as a whole. However, while we benefited from the indemnification of certain costs by a third party in the past, that indemnification is now in a transition period, and we will become subject to a greater portion of costs of remediation in the future. Our ultimate costs of remediation and other potential liabilities are difficult to predict. If the EPA and the California Regional Water Quality Control Board determine that the site cleanup requires additional measures to ensure that it meets current standards for environmental contamination, or if they enhance any of the applicable required standards, we will likely become subject to additional remediation obligations in the future. In addition to our investigation, monitoring and remediation obligations, we may be liable for property damage or personal injury claims relating to this site. While we are not aware of any material claims at this time, such claims could be made against us in the future. If significant costs or other liability relating to this site arise in the future, our business, financial condition and operating results would be adversely affected.

In addition, some of our manufacturing facilities and former facilities have an extended history of chemical manufacturing operations or other industrial activities, and contaminants have been detected at some of those sites. We or our predecessors have in the past been required to remediate contamination at several of these current and former sites, and there remains some risk that further investigation and remediation in the future might be necessary.

The environmental regulations that we are subject to include a variety of federal, state, local and international regulations that restrict the use and disposal of materials used in the manufacture of our products or require design changes or recycling of our products. If we fail to comply with any present or future regulations, we could be subject to future liabilities, the suspension of manufacturing or a prohibition on the sale of products we manufacture. In addition, these regulations could restrict our ability to equip our facilities or could require us to acquire costly equipment, or to incur other significant expenses to comply with environmental regulations, including expenses associated with the recall of any non-compliant product and the management of historical waste. For example, in addition to EU REACH, which regulates the use of certain hazardous substances in certain products, the EU has enacted the Waste Electrical and Electronic Equipment Directive, which requires the collection, reuse and recycling of waste from certain products. Compliance with such laws requires significant resources. These regulations may require us to redesign our products or source alternative components to ensure compliance with applicable requirements, for example by mandating the use of different types of materials in certain components. Any such redesign or alternative sourcing may increase the cost of our products, adversely impact the performance of our products, add greater testing lead-times for product introductions, or in some cases limit the markets for certain products. Further, such environmental laws are frequently amended, which increases the cost and complexity of compliance. For example, such amendments have in the past resulted in, and may in the future result in, certain of our products falling within the scope of a directive, even if they were initially exempt. In addition, certain of our customers, particularly OEM customers whose end products may be subject to these directives, may require that the products we supply to them comply with these directives, even if not mandated by law. Because certain directives, for example, those issued from the EU, are implemented in individual member states, compliance is particularly challenging. Our failure to comply with any of such regulatory requirements or contractual obligations could result in our being directly or indirectly liable for costs, fines or penalties and third-party claims, and could jeopardize our ability to conduct business in certain countries.

Additionally, we have established and communicated environmental goals, targets and objectives. For example, in December 2023, we announced our commitment to reduce our combined Scope 1 and 2 emissions by 42% by 2030 from our 2022 baseline. We may be unable to achieve these goals, targets and objectives or we may determine to modify these goals, targets and objectives or prioritize other business, social, governance or sustainable investments over these goals, targets and objectives, based on

economic, technological, regulatory and social factors, business strategy or pressure from investors, activists or other stakeholders. Furthermore, the standards, regulations and laws by which these environmental efforts are tracked and measured may change over time and result in inconsistent data or significant revisions to our goals, targets and objectives. We also are, or may become subject to, new or changing environmental standards, regulations and laws, such as the EU’s Corporate Sustainability Reporting Directive. Our efforts to comply with these standards, regulations and laws, and to accurately report on our goals, targets and objectives, present numerous operational, reputational, financial, legal, and other risks, and require significant investments. Our processes and controls may not always align with evolving standards, our interpretation of standards may differ from others, and standards may continue to change over time, any of which could result in significant revisions to our goals, our reported progress toward those goals, or other environmental information we disclose, as well as significant unanticipated costs. In addition, any failure or perceived failure to pursue or fulfill our stated goals, targets and objectives or to satisfy various disclosure or reporting standards, could damage our relationship with our customers or have other negative impacts and expose us to government enforcement actions, private litigation and reputational harm.

From time to time, we may be involved in legal proceedings, enforcement actions or claims regarding product performance, product warranty, product certification, product liability, patent infringement, misappropriation of trade secrets, other IP rights, data privacy, antitrust, environmental regulations, trade regulations, tax regulations, securities, contracts, unfair competition, employment, workplace safety, liability to shareholders, and other matters. We can provide no assurance of the outcome of these legal proceedings, enforcement actions or claims or that the insurance we maintain will be adequate to cover them.

Certain of our products may be hazardous if not operated properly or if defective. For example, some of our products, such as certain ultrafast lasers, are used in medical and scientific research applications where misuse or malfunctions could result in serious injury. Other products, including our chemicals products and laser systems, are inherently hazardous and must be used with particular care. For example, we have been named as a defendant in several lawsuits related to PFAS as a result of alleged environmental contamination by certain of our end customers involving their use and disposal of products containing PFAS, and we could become subject to additional lawsuits in the future. We could face significant product liability claims or losses in the event of a significant line-down situation or if death, personal injury or property damage results from the handling, use or storage of our products. While we maintain insurance for certain product liability claims, our insurance coverage may not continue to be available on acceptable terms, if at all. This insurance coverage also may not adequately cover liabilities that we incur. Further, if our products are defective, we may be required to recall or redesign these products. A successful claim against us that exceeds our insurance coverage level or that is not covered by insurance, or any product recall, could have a material adverse effect on our commercial relationships, business, financial condition and operating results.

In addition, securities class action lawsuits and derivative lawsuits are often brought against companies who have entered into business combinations and acquisitions, particularly in the United States. We were involved in securities class action litigation in connection with the Newport Acquisition and the ESI Acquisition. In each case, the plaintiffs alleged, among other things, that the then-current directors of the acquired company breached their fiduciary duties to their respective shareholders by agreeing to sell the company through an inadequate and unfair process, leading to inadequate and unfair consideration, by agreeing to unfair deal protection devices, and by omitting material information from the proxy statement. We, or the companies we acquire, may be subject to additional securities class action litigation in connection with business combinations, acquisitions or divestitures in the future.

With respect to data privacy, as a result of the 2023 ransomware event described under “Risks Related to Cybersecurity, Data Privacy and Intellectual Property Protection” above, we were previously subject to two lawsuits, and, in the future, we could be subject to future litigation, investigations, claims or actions, in addition to fines, penalties, or other obligations related to impacted data, whether or not such data is misused.

In addition, we have from time to time received claims from third parties alleging that we are infringing certain IP rights held by them. Such infringement claims have in the past resulted in, and may in the future result in, litigation, settlement or enforcement action. Any such action could be protracted and costly, and we could become subject to damages for infringement, or to an injunction preventing us from making, selling or using certain of our products or services, or using certain of our trademarks. Such claims could also result in the necessity of obtaining a license or paying damages relating to one or more of our products, services or technologies, which may not be available on commercially acceptable terms or at all. Any IP action and the failure to obtain necessary licenses or other rights or develop substitute technology could have a material adverse effect on our business, financial condition and operating results. In addition, the terms of some of our customer contracts require us to indemnify the customer for any claim of infringement brought by a third party based on our products. These claims may have a material adverse effect on our commercial relationships, business, financial condition or operating results.

Although our standard commercial documentation sets forth the terms and conditions that we intend to apply to commercial transactions with our business partners, counterparties to these transactions may not explicitly agree to our terms and conditions. In situations where we engage in business with a third party without an explicit written agreement regarding the applicable terms and conditions, or where the commercial documentation applicable to the transaction is subject to interpretation, we may have disputes with those third parties regarding the applicable terms and conditions. These disputes could result in deterioration of commercial relationships, costly and time-consuming litigation, concessions or obligations being offered by us to resolve these disputes, as well as impact our net revenue or cost recognition. Any of these outcomes could materially and adversely affect our business, financial condition and operating results.

In addition, from time to time in the normal course of business we indemnify parties with whom we enter into contractual relationships, including customers, suppliers, consultants and lessors, with respect to certain matters. We have agreed, under certain conditions, to hold these parties harmless against losses, such as those arising from a breach of representations or covenants, negligence or willful misconduct, and other third-party claims that our products and/or technologies infringe IP rights. We may be compelled to enter into or accrue for probable settlements of alleged indemnification obligations, or we may be subject to potential liability arising from our customers’ involvement in legal disputes. In addition, notwithstanding the provisions related to limitations on our liability that we seek to include in our business agreements, the counterparties to such agreements may dispute our interpretation or application of such provisions, and a court of law may not interpret or apply such provisions in our favor, any of which could result in an obligation for us to pay significant additional damages and engage in costly legal proceedings. It is difficult to determine the maximum potential amount of liability under any indemnification obligations, whether or not asserted, due to the unique facts and circumstances likely to be involved in any particular claim. Our business, financial condition and operating results in a reported fiscal period could be materially and adversely affected if we expend significant amounts in defending or settling any asserted claims, regardless of their merit or outcomes.

Legal proceedings, enforcement actions and claims, whether with or without merit, and associated internal investigations, may be time-consuming and expensive to prosecute, defend or conduct; divert management’s attention and other resources; inhibit our ability to sell our products or services; result in adverse judgments for damages, injunctive relief, penalties, fines or other resolutions that result in losses to us; and negatively affect our business, including result in a material adverse effect on our financial condition, operating results and cash flows. We can make no assurances regarding the outcome of these proceedings, enforcement actions, claims or investigations or that the insurance we maintain will be adequate to cover them.

Risks Related to Owning Our Common Stock

Our quarterly operating results have fluctuated, and are likely to continue to vary significantly, which may result in volatility in the market price of our common stock.

A substantial portion of our shipments occurs shortly after an order is received, and therefore we generally operate with a relatively low level of backlog. As a result, a decrease in demand for our products from one or more customers could occur with limited advance notice and could have a significant adverse effect on our operating results in any particular period. Further, we often recognize a significant portion of the revenue of certain of our business lines in the last month of a fiscal quarter, due in part to the tendency of some customers to wait until late in a quarter to commit to purchase our products as a result of capital expenditure approvals and budgeting constraints occurring at the end of a quarter, or the hope of obtaining more favorable pricing from a competitor. Thus, variations in timing of sales can cause significant fluctuations in our quarterly sales, gross margin and profitability. In addition, orders expected to ship in one period could shift to another period due to changes in the timing of our customers’ purchase decisions, requests for rescheduled delivery dates, material shortages, manufacturing capacity constraints or logistics delays. Our orders are generally subject to rescheduling or cancellation without penalty other than reimbursement in certain cases for certain labor and material costs. Our operating results for a particular period may be adversely affected if our customers, particularly our largest customers, cancel or reschedule orders, or if we cannot fill orders in time due to material shortages, capacity constraints or unexpected delays in manufacturing, testing, shipping, delivery or product acceptance. Also, we base our manufacturing plans on our forecasted product mix. If the actual product mix varies significantly from our forecast, we may not be able to fill some orders, which would result in delays in the shipment of our products and could shift sales to a subsequent period. Moreover, a significant percentage of our expenses are fixed and based in part on expectations of net revenues. Our inability to adjust spending quickly enough to compensate for any shortfall would magnify the adverse impact of a shortfall in net revenues on our operating results.

Customers of our high-value, more complex products often require substantial time to qualify our products and make purchase decisions. In addition, some of our sales to defense and security customers are under major defense programs that involve lengthy competitive bidding and qualification processes. These customers often perform, or require us to perform, extensive configuration, testing and evaluation of our products before committing to purchase them, which can require a significant upfront investment in time and resources. The sales cycle for these products from initial contact through shipment varies significantly, is difficult to predict and can last more than a year. If we fail to anticipate the likelihood of, or the costs or timing associated with,

sales of these products, or the cancellation or rescheduling of orders for these products, our business and operating results would be harmed.

Our worldwide sales to customers in the research and defense markets rely to a large extent on government funding for research and defense-related programs. Any decline in government funding as a result of reduced budgets in connection with fiscal austerity measures, revised budget priorities or other causes would likely result in reduced sales of our products that are purchased either directly or indirectly with government funding, which would have an adverse impact on our operating results. Concerns regarding the global availability of credit may also make it more difficult for our customers to raise capital, whether debt or equity, to finance their projects and purchases of capital equipment, which would adversely affect sales of our products and therefore harm our business and operating results.

Market seasonality also causes fluctuations in our operating results. MSD has generally experienced its strongest revenue in the second half of the fiscal year, mostly driven by consumption trends during the holiday season, and its lowest revenue in the first quarter of the fiscal year, mostly driven by the slowdown in production as a result of the Lunar New Year. In addition, we typically experience our strongest revenue in the research market in the fourth quarter of our fiscal year as a result of government spending patterns, and our highest revenue in the electronics manufacturing market in the second half of our fiscal year as a result of consumer spending during the holiday season.

Other factors that could cause fluctuations in our financial results include:

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A worldwide economic slowdown or disruption in the global financial markets;

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Fluctuations in our customers’ capital spending, industry cyclicality (particularly in the semiconductor, electronics manufacturing and automotive industries), levels of government funding available to our customers (particularly in the life and health sciences and the research and defense markets) and other economic conditions within the markets we serve;

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The timing of the receipt of orders within a given period;

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Demand for our products and the products sold by our customers;

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Disruption in sources of supply;

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Production capacity constraints;

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Regulatory and trade restrictions in the countries where we source, manufacture or sell our products;

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Specific features requested by customers;

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Natural disasters or other events beyond our control (such as earthquakes, floods or storms, regional economic downturns, pandemics, social unrest, political instability, terrorism, or acts of war);

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IT or infrastructure failures;

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The timing of product shipments and revenue recognition within a given quarter;

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Changes in our pricing practices or in the pricing practices of our competitors or suppliers, including as a result of inflationary pressures;

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Our and our competitors’ timing in introducing new products;

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Engineering and development investments relating to new product introductions, and significant changes to our manufacturing and outsourcing operations;

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Market acceptance of any new or enhanced versions of our products;

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The timing and level of inventory obsolescence, scrap and warranty expenses;

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The availability, quality and cost of components and raw materials we use to manufacture our products;

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Changes in our effective tax rates;

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Changes in our capital structure, including cash, marketable securities and debt balances, and changes in interest rates;

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Changes in bad debt expense based on the collectability of our accounts receivable;

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The timing, type and size of acquisitions and divestitures, and related expenses and charges;

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Fluctuations in currency exchange rates;

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Our expense levels;

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Impairment charges for goodwill, intangible assets or long-lived assets; and

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Fees, expenses and settlement costs or judgments against us relating to litigation or regulatory compliance.

As a result of these factors, among others, we may experience significant quarterly or annual fluctuations in our operating results, and our operating results for any period may fall below our expectations or the expectations of public market analysts or investors. In any such event, the price of our common stock could fluctuate or decline significantly. Consequently, we believe that quarter-to-quarter and year-to-year comparisons of our operating results, or any other similar period-to-period comparisons, may not be reliable indicators of our future performance.

The market price of our common stock has fluctuated and may continue to fluctuate for reasons over which we have no control.

Prices of securities of technology companies can be especially volatile and fluctuate for reasons unrelated to operating performance. Historically, the market price of shares of our common stock has fluctuated greatly. For example, the closing price of our common stock ranged from a high of $167.88 to a low of $58.78 between January 1, 2025 and December 31, 2025. The market price of shares of our common stock could continue to fluctuate. Companies that have experienced volatility in the market price of their stock have been the subject of securities class action litigation, which could result in substantial costs and divert our management’s attention and resources.

The market price of our common stock is also likely to be influenced by the Convertible Notes. For example, the market price of our common stock could become more volatile and could be depressed by: (i) investors’ anticipation of the potential resale in the market of a substantial number of additional shares of our common stock received upon conversion of the Convertible Notes; and (ii) potential hedging or arbitrage trading activity involving the Convertible Notes and our common stock.

We may not pay dividends on our common stock.

Holders of our common stock are only entitled to receive dividends when and if they are declared by our Board of Directors. Our Credit Facilities restrict our ability to pay dividends on our capital stock under certain circumstances. Although we have declared cash dividends on our common stock since 2011, and occasionally increased the dividends from prior quarters, we are not required to do so, and we may reduce or eliminate our dividend in the future. This could adversely affect the market price of our common stock.

Some provisions of our Restated Articles of Organization, our Second Amended and Restated By-laws, as amended, and Massachusetts law could discourage potential acquisition proposals and could delay, deter or prevent a change in control.

Anti-takeover provisions in our Restated Articles of Organization, in our Second Amended and Restated By-laws, as amended, and under Massachusetts law could diminish opportunities for stockholders to participate in tender offers, including tender offers at a price above the then-current market price of our common stock. Such provisions may also inhibit increases in the market price of our common stock that could result from takeover attempts. For example, while we have no present plans to issue any preferred stock, our Board of Directors, without further stockholder approval, may issue preferred stock that could have the effect of delaying, deterring or preventing a change in control of us. The issuance of preferred stock could adversely affect the voting power of the holders of our common stock, including the loss of voting control to others. In addition, pursuant to our Second Amended and Restated By-laws, as amended, the declassification of our Board of Directors, which currently consists of three classes, will be phased in so that our Board of Directors will be fully declassified by our 2028 annual meeting of stockholders. Until then, the classification of the Board could delay or deter a change in control of our Company.

Item 1B. Unresolved Staff Comments

None.

Item 1C. Cybersecurity

Risk Management and Strategy

Processes for Assessing, Identifying and Managing Material Risks from Cybersecurity Threats

We primarily assess, identify and manage material risks from cybersecurity threats through our enterprise information security program, which is maintained by our Chief Information Security Officer (“CISO”) and overseen by our Executive Vice President and Chief Information Officer (“CIO”).

Our enterprise information security program, which is designed to ensure that our information systems are adequately protected, is based on frameworks established by the National Institute of Standards and Technology and other applicable industry standards. We consider our enterprise information security program to be a key component of our overall risk management system, with program elements evaluated annually and briefings provided to management each quarter.

As part of our enterprise information security program, we regularly assess and deploy technical safeguards designed to detect cybersecurity threats and protect our information systems from these threats. In addition, we maintain incident response and recovery plans, the effectiveness of which is tested and evaluated on a regular basis. We also provide privacy and security training, including quarterly phishing education campaigns, to enhance employee awareness of how to detect and respond to cybersecurity threats.

We regularly engage assessors, consultants and other third parties to support our enterprise information security program. These engagements encompass a variety of activities, including information security maturity assessments and independent reviews of our information security control environment and operating effectiveness.

The information gleaned from these assessments and reviews is used to enhance our enterprise information security program, including cybersecurity policies, standards, processes and practices. In addition, significant findings from these assessments are reported to management and the Audit Committee of our Board of Directors (the “Board”).

We also have processes in place to oversee and identify risks from cybersecurity threats associated with the use of third-party service providers. Third-party service providers are subject to security risk assessments at the time of on-boarding, contract renewal, and upon detection of an increase in risk profile. We have similar processes in place to oversee and identify cybersecurity-related risks posed by our suppliers.

Risks from Cybersecurity Threats

We and our third-party administrators, vendors and partners are subject to ongoing cybersecurity threats. While we cannot guarantee that these threats will not have an adverse impact on us, these threats did not materially affect us during the year ended December 31, 2025 and we do not believe such threats are reasonably likely to materially affect us in the future, including with respect to our business strategy, results of operations, or financial condition. For more information on risks related to cybersecurity, refer to “Risk Factors—Risks Related to Cybersecurity, Data Privacy and Intellectual Property Protection.”

Governance

Board of Directors’ Oversight of Risks from Cybersecurity Threats

The Audit Committee is primarily responsible for oversight of risks from cybersecurity threats. As set forth in the Amended & Restated Audit Committee Charter, the Audit Committee oversees the steps management takes to monitor and control our data privacy and cybersecurity risk exposure. The Board delegated this responsibility to the Audit Committee in part because it includes members with significant experience and/or expertise in cybersecurity and other technology matters.

The Audit Committee is informed of risks from cybersecurity threats through regular reports from our CIO and CISO. Our CIO and CISO report to the Audit Committee at least quarterly. The Audit Committee actively engages with our CIO and CISO regarding these risks. Depending on the materiality of a risk, the Audit Committee, CIO or CISO may report on such risk to the full Board.

In addition, from time to time, the Board may constitute a special committee to focus on a particular cybersecurity matter or risk.

Management’s Role in Assessing and Managing Material Risks from Cybersecurity Threats

Management is integral to assessing and managing our material risks from cybersecurity threats. While all members of management are involved in the review of these risks, our CIO oversees and is responsible for our cybersecurity program. Our CIO is a seasoned technology leader and change agent who has served as the top technology executive for multi-billion-dollar global organizations spanning diverse industries. With over 25 years of experience, our CIO has led business and information technology transformations, implemented global digital strategies, and optimized and integrated governance, risk, and compliance frameworks, processes and technologies in complex regulatory and industry environments. We believe our CIO’s knowledge, skills and experience provide significant value to our Company.

Our CIO and CISO provide regular reports to management regarding risks from cybersecurity threats and the prevention, detection, mitigation and remediation of cybersecurity incidents. Within our information technology organization, our CISO and other key members of our information security team provide regular reports to our CIO.

As discussed above, our CIO and CISO also provide regular reports regarding risks from cybersecurity threats to our Audit Committee and, depending on the materiality of a risk, the full Board. In addition, from time to time, members of management may provide reports to a special committee of the Board for cybersecurity.

Item 2. Properties

The following table provides information concerning MKS’ principal and certain other owned and leased facilities as of December 31, 2025:


Country	City	Sq. Ft.	Activity	Reportable Segment	Owned/Leased
China	Guangzhou	704,000	Manufacturing, Warehouse, Sales, and Research and Development	MSD	Owned
	Shenzhen	293,000	Manufacturing and Service	VSD	Leased
	Yangzhou	455,000	Manufacturing, Warehouse, and Office	MSD	Owned
Germany	Berlin	261,000	Manufacturing, Office, and Research and Development	MSD	Leased
	Feucht	242,000	Manufacturing, Warehouse, Office, and Research and Development	MSD	Owned
	Neuruppin	172,000	Manufacturing, Warehouse, Office, and Research and Development	MSD	Owned
India	Manesar	189,000	Manufacturing and Research and Development	MSD	Owned
Mexico	Nogales	124,000	Manufacturing and Service	VSD and PSD	Leased
Romania	Bucharest	131,000	Manufacturing, Office, Research and Development, Service, and Warehouse	PSD	Leased
Slovenia	Podnart	108,000	Lab, Manufacturing, Office, Service, Warehouse, and Sales	MSD	Owned
South Korea	Hwaseong	100,000	Manufacturing, Sales, and Office	MSD	Owned
	Yongin-si	179,000	Research and Development, Office, Warehouse, Service, and Sales	VSD	Owned
United States	Andover, MA	76,000	Corporate Headquarters, Manufacturing, and Research and Development	VSD	Leased
	Beaverton, OR	113,000	Manufacturing, Office, and Warehouse	PSD	Leased
	Broomfield, CO	107,000	Manufacturing and Research and Development	VSD	Leased
	Irvine, CA	191,000	Manufacturing and Research and Development	PSD	Leased
	Milpitas, CA	103,000	Manufacturing, Sales, Customer Support, Service, and Research and Development	PSD	Leased
	Rochester, NY	156,000	Manufacturing, Sales, Customer Support, Service, and Research and Development	VSD	Owned
	Rock Hill, SC	200,000	Manufacturing, Warehouse, Office, and Research and Development	MSD	Owned
	Wilmington, MA	118,000	Manufacturing, Customer Support, Service, and Research and Development	VSD	Owned

In addition to the significant facilities listed above, MKS also has manufacturing, sales and marketing, customer support and services operations in various other leased and owned facilities throughout the world. See “Business—Sales and Marketing” and “Business—Reportable Segments, and Product and Service Offerings” in Part I, Item 1 of this Annual Report on Form 10-K. We believe that our current facilities are suitable and adequate to meet our needs.

Item 3. Legal Proceedings

We are subject to various legal proceedings and claims, which have arisen in the ordinary course of business. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on our results of operations, financial condition or cash flows.

Item 4. Mine Safety Disclosures

Not applicable.

PART II

Common Stock

Our common stock is traded on the Nasdaq Global Select Market under the symbol MKSI.

As of February 17, 2026, we had 58 stockholders of record.

Dividend Policy and Cash Dividends

Holders of our common stock are entitled to receive dividends when and if they are declared by our Board of Directors. Our Board of Directors declared a cash dividend of $0.22 per share during each quarter of 2025, which totaled $59 million or $0.88 per share. During 2024, our Board of Directors declared a cash dividend of $0.22 per share during each quarter of the year, which totaled $59 million or $0.88 per share.

On February 9, 2026, our Board of Directors declared a quarterly cash dividend of $0.25 per share to be paid on March 6, 2026 to shareholders of record as of February 23, 2026.

Future dividend declarations, if any, as well as the record and payment dates for such dividends, are subject to the final determination of our Board of Directors. The Board of Directors intends to declare and pay cash dividends on our common stock based on our financial conditions and results of operations, although it has no obligation to do so. Our Credit Facilities contain covenants that restrict our ability to grant cash dividends in certain circumstances.

On July 25, 2011, our Board of Directors approved, and on July 27, 2011, we publicly announced a share repurchase program for the repurchase of up to an aggregate of $200 million of our outstanding common stock from time to time in open market purchases, privately negotiated transactions or through other appropriate means. The timing and quantity of any shares repurchased depends upon a variety of factors, including business conditions, stock market conditions and business development activities, including, but not limited to, merger and acquisition opportunities. These repurchases may be commenced, suspended or discontinued at any time without prior notice.

During 2025, we repurchased approximately 546,000 shares of our common stock for total consideration of $45 million. During 2024, we did not repurchase any shares of common stock. We have repurchased approximately 3.1 million shares of common stock for approximately $172 million pursuant to the program since its adoption.

Comparative Stock Performance

The following graph compares the cumulative total shareholder return (assuming reinvestment of dividends) from investing $100 on December 31, 2020, and plotted at the last trading day of each of the fiscal years ended December 31, 2021, 2022, 2023, 2024 and 2025 of MKS’ common stock; a peer group index representing all companies comprising the S&P 1500 Composite Electronic Equipment Instruments & Components Index and the Nasdaq Market Index. The stock price performance in the graph below is not necessarily indicative of future price performance.

Performance Graph


	2020		2021		2022		2023		2024		2025
MKS Inc.	$	100.00	$	116.36	$	57.04	$	69.93	$	71.47	$	110.29
Nasdaq Market Index	$	100.00	$	122.18	$	82.43	$	119.22	$	154.48	$	187.14
S&P 1500 Composite / Electronic Equipment, Instruments & Components Index	$	100.00	$	129.18	$	101.05	$	121.68	$	142.03	$	205.05

Item 6. Reserved

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) describes principal factors affecting the results of operations, financial condition, cash flows and liquidity, as well as our critical accounting policies and estimates that require significant judgment and thus have the most significant potential impact on our consolidated financial statements, and is intended to better allow investors to view the Company from management’s perspective. This section focuses on material events and uncertainties known to management that are reasonably likely to cause reported financial information not to be necessarily indicative of our future operating results or of our future financial condition. This section provides an analysis of our financial results for the year ended December 31, 2025 compared to the year ended December 31, 2024. For the discussion and analysis covering the year ended December 31, 2024 compared to the year ended December 31, 2023, please refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2024, as filed with the SEC on February 25, 2025. As a result of rounding, there may be immaterial differences in amounts presented and certain calculations may not sum to the total number expressed in each category or tie to a corresponding schedule.

Overview

Current Trade Environment

As the global trade landscape continues to evolve to address trade imbalances, national security concerns, and market access issues, including the imposition of significant tariffs on numerous global trading partners and the expansion of various export controls, we continue to implement strategies to strengthen supplier diversification, explore alternative sourcing geographies and optimize logistics routes. Our efforts are designed to mitigate cost impacts, maintain operational efficiency, and support supply chain continuity against current and future regulatory risks.

Segments

We have three divisions, which are our reportable segments: Vacuum Solutions Division (“VSD”), Photonics Solutions Division (“PSD”) and Materials Solutions Division (“MSD”).

MSD develops leading process and manufacturing technologies for advanced surface modification, electroless and electrolytic plating, and surface finishing. Applying a comprehensive systems-and-solutions approach, MSD’s portfolio includes chemistry, equipment and services for innovative and high-technology applications in our electronics and packaging and specialty industrial markets.

Markets

Net Revenues by End Market


	Years Ended December 31,
(Dollars in millions)	2025		% Total			2024		% Total
Semiconductor	$	1,696		43	%	$	1,498		42	%
Electronics and Packaging		1,111		28	%		922		26	%
Specialty Industrial		1,124		29	%		1,166		32	%
Total net revenues	$	3,931		100	%	$	3,586		100	%

Semiconductor Market

We are a critical solutions provider for semiconductor manufacturing. Our products are used in major semiconductor processing steps, such as deposition, etching, cleaning, lithography, metrology, and inspection. The semiconductor industry continually faces new challenges, as products become smaller, more powerful and highly mobile. Ultra-thin layers, smaller critical dimensions, new materials, 3D structures, and the ongoing need for higher yield and productivity drive the need for tighter process measurement and control, all of which we support. We believe we are the broadest critical subsystem provider in the wafer fabrication equipment (“WFE”) ecosystem and address over 85% of the market. We characterize our broad and unique offering as Surround the Wafer® to reflect the technology enablement we provide across almost every major process in semiconductor manufacturing today.

The semiconductor market is subject to rapid demand shifts, which are difficult to predict, and we cannot be certain as to the timing or extent of future demand or any future softening in the semiconductor capital equipment industry. In addition to these rapid demand shifts, the semiconductor capital equipment industry has recently been subject to significant trade restrictions, especially in key markets, including China.

Approximately 43% and 42% of our net revenues for 2025 and 2024, respectively, were from sales to customers in the semiconductor market.

Net revenues from customers in our semiconductor market increased by $198 million, or 13%, in 2025, compared to 2024. The increase was mainly due to higher sales of our semiconductor capital equipment in logic and foundry applications, higher NAND memory production upgrades, and higher service revenues at VSD, partially offset by decreases in sales in our lithography, metrology and inspection products at PSD.

Electronics and Packaging Market

We are a foundational solutions provider for the electronics and packaging market. Our portfolio includes photonics components, laser drilling systems, electronics chemistries and plating equipment that are critical for the manufacturing of printed circuit boards (“PCB”) and package substrates, and critical to wafer level packaging (“WLP”) applications. Similar to the semiconductor industry, the PCB, package substrate and WLP industries demand smaller features, greater density, and better performance. In addition, the electronics and packaging market also includes sales of our vacuum and photonics solutions for display manufacturing applications. We characterize our complementary offering of laser systems and chemistry solutions as Optimize the Interconnect®, to reflect the unique technology enablement we provide at the Interconnect level within PCBs, package substrates and WLPs.

Approximately 28% and 26% of our net revenues for 2025 and 2024, respectively, were from sales to customers in our electronics and packaging market.

Net revenues from customers in our electronics and packaging market increased by $189 million, or 20%, in 2025 compared to 2024. This increase was primarily due to higher chemistry and equipment sales in the electronics market at MSD as well as higher sales of PCB via drilling systems at PSD.

Specialty Industrial Market

Industrial

Life and Health Sciences

Research and Defense

Our products for research and defense are sold to government, university and industrial laboratories for applications involving research and development in materials science, physical chemistry, photonics, optics and electronics materials. Our products are also sold for monitoring and defense applications, including surveillance, imaging and infrastructure protection.

Approximately 29% and 32% of our net revenues for 2025 and 2024, respectively, were from customers in our specialty industrial market.

Net revenues from customers in our specialty industrial market decreased by $42 million, or 4%, in 2025, compared to 2024. This decrease was primarily driven by lower sales to industrial customers at VSD and lower chemistry and equipment sales to industrial customers at MSD.

International Markets

A significant portion of our net revenues is from sales to customers in international markets. International net revenues accounted for approximately 81% and 78% of our total net revenues in 2025 and 2024, respectively. We report geographical net revenues based on the shipped-to location of the end customer. A significant portion of our international net revenues was from customers in China, South Korea, Singapore, Taiwan and Japan. We expect international net revenues will continue to account for a significant percentage of total net revenues for the foreseeable future.

Long-lived assets located outside of the United States accounted for approximately 70% and 59% of our total long-lived assets as of December 31, 2025 and 2024, respectively. Long-lived assets include property, plant and equipment, net, right-of-use assets and certain other assets.

Critical Accounting Policies and Estimates

MD&A discusses our Consolidated Financial Statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, we evaluate our estimates and judgments, including those related to revenue recognition, inventory valuation, warranty costs, pension plan valuations, stock-based compensation expense, intangible assets, goodwill and long-lived assets, income taxes and derivatives. We base our estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

For a complete description of our significant accounting policies, see Part II—Item 8 Financial Statements and Supplementary Data, Note 3, “Summary of Significant Accounting Policies”. We believe the following critical accounting policies affect the most significant judgments, assumptions and estimates we use in preparing our Consolidated Financial Statements:

Revenue Recognition. We account for revenue using Accounting Standards Codification 606, “Revenue from Contracts with Customers” (“ASC Topic 606”). We apply ASC Topic 606 using the following steps:

•

Identify the contract with a customer

•

Identify the performance obligations in the contract

•

Determine the transaction price

•

Allocate the transaction price to performance obligations in the contract

•

Recognize revenue when or as we satisfy a performance obligation

Revenue is recognized when or as obligations under the terms of a contract with our customer have been satisfied and control has transferred to the customer. The majority of our performance obligations, and associated revenue, are transferred to customers at a point in time, generally upon shipment of a product to the customer or receipt of the product by the customer and without significant judgments. We recognize revenue over time for contracts relating to the manufacturing, modifications and retrofits of our plating equipment, as the equipment is built to customer specification, and we have an enforceable right to payment for the performance completed to date. For these sales, we use the cost-to-cost input method to measure progress. In cases, where cost-to-cost is not proportionate to our progress in satisfying the performance obligation because of uninstalled materials, we adjust the measure of progress and recognize revenue to the extent of cost incurred to satisfy the performance obligation under the contract. Revenue from customized products with no alternative future use to us, and that have an enforceable right to payment for performance completed to date, is also recorded over time. We consider this to be a faithful depiction of the transfer to the customer of revenue over time as the work is performed or service is delivered. Adjustments for custom products were immaterial in each of the periods presented.

Installation services, other than those related to our plating equipment, are not significant, are usually completed in a short period of time and, therefore, are recorded at a point in time when the installation services are completed, rather than over time, as they are not material. Extended warranty, service contracts, and repair services, which are transferred to the customer over time, are recorded as revenue as the services are performed. For repair services, we make an accrual at each quarter end based upon historical repair times within our product groups to record revenue based upon the estimated number of days completed to date, which is consistent with ratable recognition.

Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Performance obligations promised in a contract are identified based on the products or services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the product or service either on its own or together with other resources that are readily available from third parties or from us, and are distinct in the context of the contract, whereby the transfer of the product or service is separately identifiable from other promises in the contract. Sales tax, value add tax, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue. Our normal payment terms are 30 to 60 days but vary by the type and location of our customers and the products or services offered. The time between invoicing and when payment is due is not significant. For certain products and services and customer types, we require payment before the products are delivered to, or the services are performed for, the customer. None of our contracts in each of the periods presented contained a significant financing component.

We periodically enter into contracts with our customers in which a customer may purchase a combination of goods and or services, such as products with installation services or extended warranties. These contracts include multiple deliverables that we evaluate to determine if the deliverables are separate performance obligations. Once we determine the performance obligations, we then determine the transaction price, which includes estimating the amount of variable consideration to be included in the transaction price, if any. To the extent the transaction price includes variable consideration, we estimate the amount of variable consideration that should be included in the transaction price utilizing either the expected value method or the most likely amount method, depending on the method we expect to better predict the amount of consideration to which we will be entitled. There are no constraints on the variable consideration recorded. We then allocate the transaction price to each performance obligation in the contract based on a relative stand-alone selling price charged separately to customers or using an expected cost-plus margin method. The corresponding revenues are recognized when or as the related performance obligations are satisfied, which are noted above. The impact of variable consideration was immaterial in each of the periods presented.

Our standard assurance warranty is normally 12 to 24 months. We sell separately priced service contracts and extended warranty contracts related to certain of our products, in particular related to our plating and laser-based products. These separately priced contracts generally range from 12 to 60 months. We normally receive payment at the inception of the contract and recognize revenue over the term of the contract in proportion to the costs expected to be incurred in satisfying the obligations under the contract. We have elected to use the practical expedient related to disclosing remaining performance obligations as of December 31, 2025 and 2024, as the majority have a duration of less than one year.

We monitor and track the amount of product returns, provide for sales return allowances and reduce revenue at the time of shipment for the estimated amount of such future returns, based on historical experience. We make estimates evaluating our allowance for doubtful accounts. While product returns have historically been within our expectations and established provisions, there is no assurance that we will continue to experience the same return rates that we have in the past. Any significant increase in product return rates could have a material adverse impact on our operating results for the period in which such returns materialize.

While we maintain a credit approval process, significant judgments are made by management in connection with assessing our customers' ability to pay at the time of shipment. Despite this assessment, from time to time, our customers are unable to meet their payment obligations. We continuously monitor our customers' creditworthiness and use our judgment in establishing a provision for estimated credit losses based upon our historical experience and any specific customer collection issues that we have identified. While such credit losses have historically been within our expectations and the provisions established, there is no assurance that we will continue to experience the same credit loss rates that we have in the past. A significant change in the liquidity or financial position of our customers could have a material adverse impact on the collectability of accounts receivable and our future operating results. Bad debt expense was immaterial in each period presented.

Inventory Valuation. We value our inventory at the lower of cost or net realizable value, cost being determined using a standard costing system that approximates actual costs, based on a first-in, first-out method. We regularly review inventory quantities on hand and record a provision to write-down excess and obsolete inventory to its estimated net realizable value, if less than cost, based primarily on our estimated forecast of product demand. Once our inventory value is written-down and a new cost basis has been established, the inventory value is not increased due to demand increases. Demand for our products can fluctuate significantly. A significant increase in the demand for our products could result in a short-term increase in the cost of inventory purchases as a result of supply shortages or a decrease in the cost of inventory purchases as a result of volume discounts, while a significant decrease in demand could result in an increase in the charges for excess inventory quantities on hand. In addition, our industry is subject to technological change, new product development and product technological obsolescence that could result in an increase in the amount of obsolete inventory quantities on hand. Therefore, any significant unanticipated changes in demand or technological developments could have a significant impact on the value of our inventory and our reported operating results. Excess and obsolete expense was $45 million, $56 million and $64 million for 2025, 2024 and 2023, respectively. The excess and obsolete charge in 2023 was partially due to an inventory write-off as a result of the discontinuation of a product line in 2023 and partially due to reduced forecasted usage. The excess and obsolete charges in 2025 and 2024 were mainly the result of reduced forecasted usage.

Warranty Costs. We provide for the estimated costs to fulfill customer warranty obligations upon the recognition of the related revenue. We provide warranty coverage for our products for periods ranging from 12 to 36 months, with the majority of our products for periods ranging from 12 to 24 months. Short-term accrued warranty obligations, which expire within one year, are included in other current liabilities and long-term accrued warranty obligations are included in other liabilities in the consolidated balance sheets. We estimate the anticipated costs of repairing our products under such warranties based on the historical costs of the repairs and any known specific product issues. The assumptions we use to estimate warranty accruals are re-evaluated periodically in light of actual experience and, when appropriate, the accruals are adjusted. Our determination of the appropriate level of warranty accrual is based upon estimates. Should product failure rates differ from our estimates, actual costs could vary significantly from our expectations. Defective products will be either repaired or replaced, generally at our option, upon meeting certain criteria.

Pension Plan Valuations. Several of our non-U.S. subsidiaries have defined benefit pension plans covering employees of those subsidiaries. The majority of these defined benefit plans are frozen and do not allow new employees to join the plans. Some of the plans are unfunded, as permitted under the plans and applicable laws. For financial reporting purposes, we obtained actuarial reports supporting the calculation of net periodic pension costs that used a number of actuarial assumptions, including a discount rate for plan obligations, an assumed rate of return on pension plan assets, and an assumed rate of compensation increase for employees covered by the various plans. We reviewed these actuarial assumptions and concluded they were reasonable based upon our judgment, considering known trends and uncertainties. Actual results that differ from these assumptions would impact future expense recognition and the cash funding requirements of our pension plans.

Stock-Based Compensation Expense. Stock-based awards include (i) time-based restricted stock units (“time-based RSUs”), (ii) performance-based RSUs based on the achievement of Company adjusted EBITDA targets over a one-year performance period (the “Adjusted EBITDA RSUs”), (iii) performance-based RSUs based on the Company’s total shareholder return relative to a group of peers over a three-year performance period (the “rTSR RSUs”) and (iv) employee stock purchase plan rights. We record compensation expense for all stock-based compensation awards to employees and directors based upon the estimated fair market value of the underlying instrument. Accordingly, stock-based compensation cost is measured at the grant date, based upon the fair value of the award.

We determine the fair value of time-based RSUs based on the closing market price of our common stock on the date of grant reduced by the present value of dividends expected to be paid on our common stock prior to vesting. We determine the original fair value of Adjusted EBITDA RSUs based upon the closing market price of our common stock on the date of grant reduced by

the present value of dividends expected to be paid on our common stock prior to vesting and adjust the fair value quarterly during the one-year performance period based upon actual and forecasted results against Company Adjusted EBITDA targets. Accordingly, the number of Adjusted EBITDA RSUs earned will depend on the actual Company Adjusted EBITDA achieved for the one-year performance period. For each quarter during the one-year performance period, we estimate the number of Adjusted EBITDA RSUs to be earned based on the probability of achieving the Company Adjusted EBITDA targets. Such estimates are revised, if necessary, in subsequent periods when the underlying factors change the probability of achieving such Company Adjusted EBITDA targets. Accordingly, share-based compensation expense associated with Adjusted EBITDA RSU targets may differ significantly from the amount recorded in the current period. Such values are recognized as expense using the accelerated graded vesting method for Adjusted EBITDA RSUs, over the requisite service periods. We estimate the fair value of rTSR RSUs using the Monte Carlo simulation model, which requires the use of highly subjective and complex assumptions, including the price volatility of the underlying common stock. For the rTSR RSUs, the expense computed is fixed and recognized on a straight-line basis over the service period.

We provide certain employees the opportunity to purchase our shares through an Employee Stock Purchase Plan (“ESPP”). We estimate the fair value of shares issued under our ESPP using the Black-Scholes model, which incorporates a number of complex and subjective variables, including expected stock price volatility over the term of the awards, expected life, risk-free interest rate and expected dividends. Management determined that blended stock-based compensation, a combination of historical and implied volatility, is more reflective of market conditions and a better indicator of expected volatility than historical or implied volatility alone.

The assumptions used in calculating the fair value of share-based compensation awards represent management’s best estimates, but these estimates involve inherent uncertainties and the application of management’s judgment. As a result, if factors change and we use different assumptions, our stock-based compensation expense could be materially different in the future.

Intangible Assets, Goodwill and Long-Lived Assets. As a result of our acquisitions, we have identified intangible assets and generated significant goodwill. Definite-lived intangible assets are valued based on estimates of future cash flows and amortized over their estimated useful life. Determining fair value requires the exercise of significant judgment, including assumptions about appropriate discount rates as well as forecasted revenue, terminal growth rate, gross profit and operating expenses.

Goodwill and indefinite-lived intangible assets are subject to annual impairment testing as well as testing upon the occurrence of any event that indicates a potential impairment. Intangible assets and other long-lived assets are also subject to an impairment test if there is an indicator of impairment. If our expectations of future results and cash flows are significantly diminished, intangible assets, goodwill and other long-lived assets may be impaired and the resulting charge to operations may be material. When we determine that the carrying value of intangible assets or other long-lived assets may not be recoverable based upon the existence of one or more indicators of impairment, we use the projected undiscounted cash flow method to determine whether an impairment exists and then measure the impairment using discounted cash flows. To measure impairment for goodwill, we compare the fair value of our reporting units by measuring discounted cash flows to the book value of the reporting units. Goodwill would be impaired if the resulting implied fair value was less than the recorded book value of the goodwill.

The estimation of useful lives and expected cash flows requires us to make significant judgments regarding future periods that are subject to factors outside of our control. Changes in these estimates can result in significant revisions to the carrying value of these assets and may result in material charges to the results of operations.

We have elected to perform our annual goodwill impairment test as of October 31 of each year, or more often if events or circumstances indicate that there may be impairment. Goodwill is the amount by which the cost of acquired net assets exceeded the fair value of those net assets on the date of acquisition. We allocate goodwill to reporting units at the time of acquisition or when there is a change in the reporting structure and base that allocation on which reporting units will benefit from the acquired assets and liabilities. Reporting units are defined as operating segments or one level below an operating segment, referred to as a component. The estimated fair value of our reporting units was based on discounted cash flow models derived from internal earnings and internal and external market forecasts. Determining fair value requires the exercise of significant judgment, including assumptions about appropriate discount and perpetual growth rates, as well as forecasted revenue growth rates and gross profit and operating expenses. Discount rates are based on a weighted average cost of capital (“WACC”), which represents the average rate a business must pay its providers of debt and equity. The WACC used to test goodwill is derived from a group of comparable companies. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. We make every effort to forecast these future cash flows as accurately as possible with the information available at the time the forecast is developed.

Effective January 1, 2025, we reassigned goodwill to certain reporting units within PSD resulting from a reorganization of that business. The goodwill was reassigned to the new reporting units using the relative fair value approach. We also concluded that the fair value of each reporting unit immediately before and after the reorganization exceeded its respective carrying value. For more information, see Note 12 to the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K.

In performing our annual goodwill impairment test, we are permitted to first assess qualitative factors to determine whether it is more likely than not that the fair value of our reporting unit is less than its carrying amount, including goodwill. In performing the qualitative assessment, we consider certain events and circumstances specific to the reporting unit and to the entity as a whole, such as macroeconomic conditions, industry and market considerations, overall financial performance and cost factors when evaluating whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. We are also permitted to bypass the qualitative assessment and proceed directly to the quantitative assessment. If we choose to undertake the qualitative assessment and we conclude that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, we would then proceed to the quantitative impairment assessment. In the quantitative assessment, we compare the fair value of the reporting unit to its carrying amount, which includes goodwill. If the fair value exceeds the carrying value, no impairment loss exists. If the fair value is less than the carrying amount, a goodwill impairment loss is measured and recorded.

As of October 31, 2025 and 2024, we performed our annual impairment assessment of goodwill using a qualitative assessment for all of our reporting units. We determined that it was more likely than not that the fair values were more than the carrying values for each of the reporting units.

We will continue to monitor and evaluate the carrying value of goodwill and intangible assets. If market and economic conditions or business performance deteriorate, this could increase the likelihood of us recording an impairment charge. Our stock price and any estimated control premium are factors affecting the assessment of the fair value of our underlying reporting units for purposes of performing any goodwill impairment assessment.

Income Taxes. We evaluate the realizability of our net deferred tax assets and assess the need for a valuation allowance on a quarterly basis. The future benefit to be derived from our deferred tax assets is dependent upon our ability to generate sufficient future taxable income in each jurisdiction of the right type to realize the assets. We record a valuation allowance to reduce our net deferred tax assets to the amount that is expected to be realized. Evaluating positive and negative evidence regarding the realization of the net deferred tax assets in accordance with ASC 740, “Accounting for Income Taxes,” is a key judgment in this process. This assessment includes an evaluation of scheduled reversals of deferred tax liabilities, estimates of projected future taxable income, and tax-planning strategies. To the extent we establish a valuation allowance, or determine that a valuation allowance is no longer needed, an expense or benefit is recorded within the provision for income taxes line in the consolidated statements of operations and comprehensive income (loss). In 2025, we decreased our valuation allowance by $72 million, primarily related to certain foreign interest and net operating loss carryforwards. Although realization is not guaranteed, we have concluded it is more likely than not that these assets, net of the remaining valuation allowance, will be realized.

We are subject to the income tax laws and regulations of the many jurisdictions in which we operate. These tax laws and regulations are complex and involve uncertainties in the application to our facts and circumstances that may be open to interpretation. Accounting for income taxes requires a two-step approach to recognize and measure uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if, based on the technical merits, it is more likely than not that the position will be sustained upon audit, including resolutions of related appeals or litigation processes, if any. The second step is to measure the tax benefit as the largest amount that is more than 50% likely of being realized upon ultimate settlement. This process is inherently subjective since it requires our assessment of the probability of future outcomes. We re-evaluate these uncertain tax positions on a quarterly basis based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, effectively settled issues under audit and new audit activity. Any change in these factors could result in the recognition of a tax benefit or an additional charge to the tax provision.

Derivatives. As a result of our global operating activities and variable interest rate borrowings, we are exposed to market risks from changes in foreign currency exchange rates and interest rates, which may adversely affect our operating results and financial position. We address these risks through a risk management program that includes the use of derivative financial instruments. We operate the program pursuant to documented corporate risk management policies. We enter into derivative instruments for risk management purposes only, including derivatives designated as hedging instruments and those utilized as economic hedges. We do not enter into derivative instruments for trading or speculative purposes.

We have used derivative instruments, such as foreign exchange forward contracts, options and net investment hedges, to manage certain foreign currency exposure, and interest rate swaps and interest rate caps to manage certain interest rate exposure. Changes in fair value of derivative instruments are recognized in the consolidated statement of operations or, if hedge accounting is applied, in Other Comprehensive (Loss) Income (“OCI”) for the effective portion of the changes in fair value. The cash flows resulting from foreign exchange forward contracts are classified in the consolidated statements of cash flows as part of cash flows from operating activities. All derivatives are stated at fair value in the consolidated balance sheets.

Accounting principles for qualifying hedges require detailed documentation that describes the relationship between the hedging instrument and the hedged item, including, but not limited to, the risk management objectives and hedging strategy and the methods to assess the effectiveness of the hedging relationship. We assess the hedging relationships, both at the inception of the hedge and on an ongoing basis, using either the critical terms matching approach or a regression analysis approach to determine whether the designated hedging instrument is highly effective in offsetting changes in the value of the hedged item.

By nature, all financial instruments involve market and credit risks. We enter into derivative instruments with a diversified group of major investment grade financial institutions, for which no collateral is required. We have policies to monitor the credit risk of these counterparties. While there can be no assurance, we do not anticipate any material non-performance by any of these counterparties.

Results of Operations

The following table sets forth, for the periods indicated, the percentage of total net revenues of certain line items included in our consolidated statements of operations and comprehensive income (loss) data:


	Years Ended December 31,
	2025			2024

Net revenues:
Product		87.4	%		87.1	%
Service		12.6			12.9
Total net revenues		100.0			100.0
Cost of revenues:
Cost of product revenues		47.3			46.3
Cost of service revenues		6.0			6.0
Total cost of revenues (exclusive of amortization shown separately below)		53.3			52.4
Gross profit		46.7			47.6
Research and development		7.6			7.6
Selling, general and administrative		18.4			18.8
Acquisition and integration costs		—			0.3
Restructuring and other		0.9			0.2
Fees and expenses related to amendments to the Term Loan Facility		0.1			0.1
Amortization of intangible assets		6.3			6.8
Income from operations		13.4			13.9
Interest income		(0.4	)		(0.6	)
Interest expense		5.4			7.9
Loss on extinguishment of debt		0.3			1.6
Other expense (income), net		0.4			(0.1	)
Income before income taxes		7.7			5.0
Provision (benefit) for income taxes		0.2			(0.3	)
Net income		7.5	%		5.3	%

Year Ended December 31, 2025 compared to 2024

The following table sets forth our net revenues for product and service:

Net Revenues


	Years Ended December 31,
(Dollars in millions)	2025		2024
Product	$	3,436	$	3,124
Service		495		462
Total net revenues	$	3,931	$	3,586

Net product revenues increased $312 million in 2025, compared to 2024, primarily driven by an increase of $206 million in net product revenues from our electronics and packaging market and an increase of $146 million in our semiconductor market, offset by a decrease of $41 million in our specialty industrial market. The increase in the electronics and packaging market was primarily a result of volume increases in chemistry and equipment sales at MSD as well as increased demand for PCB via drilling systems at PSD. The increase in the semiconductor market was primarily as a result of increases in sales at VSD, mainly due to an increase in demand in capital equipment related to strength in logic and foundry applications as well as higher NAND memory production upgrades, partially offset by volume decreases in sales in our lithography, metrology and inspection products at PSD. The decrease in the specialty industrial market was mainly due to a decrease in sales of our industrial products at VSD and MSD.

Net service revenues consisted mainly of fees for services related to the maintenance and repair of our products, sales of spare parts, and installation and training. Net service revenues increased $33 million in 2025, compared to 2024, primarily due to an increase in net service revenues in our semiconductor market, mainly at VSD, offset by a decrease of net service revenues in our electronics and packaging market, mainly at PSD and MSD.

Total international net revenues, including product and service, were $3.2 billion in 2025, compared to $2.8 billion in 2024, primarily driven by an increase of $155 million in sales to China.

The following table sets forth our net revenues by reportable segment:


	Years Ended December 31,
(Dollars in millions)	2025		2024
Vacuum Solutions Division	$	1,579	$	1,384
Photonics Solutions Division		1,029		1,021
Materials Solutions Division		1,323		1,181
Total net revenues	$	3,931	$	3,586

Net revenues for our VSD segment increased $195 million in 2025, compared to 2024, mainly due to higher sales of our semiconductor capital equipment in logic and foundry applications, higher NAND memory production upgrades and higher service revenues. This was partially offset by decreases in industrial applications in our specialty industrial market.

Net revenues for our PSD segment increased $8 million in 2025, compared to 2024, primarily as a result of increased demand for PCB via drilling systems in our electronics and packaging market offset by decreased sales of our lithography, metrology and inspection products in our semiconductor market.

Net revenues for our MSD segment increased $142 million in 2025, compared to 2024, primarily due to higher chemistry and equipment sales in our electronics and packaging market partially offset by lower sales in industrial applications within our specialty industrial market.

The following table sets forth gross profit as a percentage of net revenues by product and service:

Gross Profit Excluding Amortization


	Years Ended December 31,						% Points
(As a percentage of net revenues)	2025			2024			Change
Product		45.9	%		46.8	%		(0.9	)%
Service		52.5	%		53.3	%		(0.8	)%
Total gross profit percentage		46.7	%		47.6	%		(0.9	)%

Gross profit as a percentage of net product revenues decreased by 0.9 percentage points in 2025, compared to 2024, primarily due to higher duty and tariff costs and unfavorable product mix, partially offset by higher revenue volumes.

Gross profit as a percentage of net service revenues decreased by 0.8 percentage points in 2025, compared to 2024, primarily due to higher duty and tariff costs and variable compensation, partially offset by lower scrap and rework.

The following table sets forth gross profit as a percentage of net revenues by reportable segment:


	Years Ended December 31,						% Points
(As a percentage of net revenues)	2025			2024			Change
Vacuum Solutions Division		43.3	%		42.9	%		0.4	%
Photonics Solutions Division		43.5	%		44.9	%		(1.4	)%
Materials Solutions Division		54.1	%		56.1	%		(2.0	)%
Total gross profit percentage		46.7	%		47.6	%		(0.9	)%

Gross profit as a percentage of net revenues for VSD increased in 2025, compared to 2024, primarily due to higher revenue volumes, improved factory utilization and lower warranty costs, partially offset by higher duty and tariff costs and unfavorable product mix.

Gross profit as a percentage of net revenues for PSD decreased in 2025, compared to 2024, primarily due to higher duty and tariff costs and variable compensation, partially offset by lower excess and obsolete inventory charges.

Gross profit as a percentage of net revenues for MSD decreased in 2025, compared to 2024, primarily due to unfavorable product mix as a result of higher chemistry equipment sales, and higher excess and obsolete inventory charges.

The above gross profit percentages by division exclude an immaterial amount of unallocated corporate expense included in the total gross profit percentage.

Research and Development


	Years Ended December 31,
(Dollars in millions)	2025		2024
Research and development	$	299	$	271

Research and development expenses increased $28 million in 2025, compared to 2024, mainly due to an increase of $21 million in compensation-related costs, including salaries, fringe and variable compensation expenses and a decrease of $2 million in research and development credits and government assistance received.

Our research and development efforts are primarily focused on developing and improving our instruments, components, chemistry, subsystems, systems and process control solutions to improve process performance and productivity. We have thousands of products, and our research and development efforts primarily consist of a large number of projects related to these products, none of which is individually material. Projects typically have a duration of 3 to 36 months but may be extended for development of new products.

We continue to make product advancements designed to meet our customers’ evolving needs. We have developed, and continue to develop, new products designed to address industry trends, such as the rising demand for more complex hardware architecture related to increasing investments in artificial intelligence, the shrinking of integrated circuit critical dimensions and technology inflections, and, in the flat panel display and solar markets, the transition to larger substrate sizes, which require more advanced processing and process control technology, the continuing drive toward more complex and accurate components and devices within the handset and tablet market, the growth in units and via counts in the high density interconnect PCB drilling market, and the transition from internal combustion to electric vehicles. In addition, we have developed, and continue to develop, products that support the migration to new classes of materials, ultra-thin layers, and 3D structures that are used in small geometry manufacturing. In our chemistry and equipment plating businesses, a majority of our research and development investment supports existing customers’ product improvement needs and their short-term research and development goals, which enables us to pioneer new high-value solutions while limiting commercial risk. Research and development expenses consist primarily of salaries and related expenses for personnel engaged in research and development, fees paid to consultants, material costs for prototypes and other expenses related to the design, development, testing and enhancement of our products.

We believe that the continued investment in research and development and ongoing development of new products are essential to the expansion of our markets. We expect to continue to make significant investment in research and development activities. We are subject to risks from products not being developed in a timely manner, as well as from rapidly changing customer requirements and competitive threats from other companies and technologies. Our success depends on many of our products being designed into new generations of equipment for the semiconductor, electronics and packaging, and specialty industrial markets. We seek to develop products that are technologically advanced so that they are positioned to be chosen for use in each successive generation of semiconductor capital equipment and advanced markets applications. If our products are not chosen to be designed into our customers’ products, our net revenues may be reduced during the lifespan of those products.

Selling, General and Administrative


	Years Ended December 31,
(Dollars in millions)	2025		2024
Selling, general and administrative	$	724	$	674

Selling, general and administrative expenses increased $50 million during 2025, compared to 2024, primarily due to a $53 million increase in compensation-related costs, mainly related to salaries, fringe and variable compensation, partially offset by a $5 million reduction in consulting and professional fees.

Acquisition and Integration Costs


	Years Ended December 31,
(Dollars in millions)	2025		2024
Acquisition and integration costs	$	—	$	9

Acquisition and integration costs incurred during 2024 were related to consulting and professional fees related to the acquisition of Atotech Limited (“Atotech”) in August 2022 (the “Atotech Acquisition”).

Restructuring and other


	Years Ended December 31,
(Dollars in millions)	2025		2024
Restructuring and other	$	37	$	6

Restructuring and other charges incurred in 2025 were primarily related to severance costs incurred as a result of a global cost saving initiative implemented during the first quarter of 2025, mainly in the general metals finishing business within MSD, as well as third party costs supporting other strategic initiatives. Restructuring and other charges incurred in 2024 were primarily related to severance costs incurred as a result of global cost-saving initiatives implemented in the fourth quarter of 2023.

Fees and Expenses Related to Amendments to the Term Loan Facility


	Years Ended December 31,
(Dollars in millions)	2025		2024
Fees and expenses related to amendments to the Term Loan Facility	$	2	$	5

In 2025, we recorded fees and expenses related to the Fifth Amendment to Credit Agreement, dated as of January 24, 2025, by and among us as parent borrower, the other loan parties party thereto, JPMorgan Chase Bank, N.A., as administrative agent, and each lender party thereto (the “Fifth Amendment”).

In 2024, we recorded fees and expenses related to the Fourth Amendment to Credit Agreement, dated as of July 23, 2024, by and among us as parent borrower, the other loan parties party thereto, JPMorgan Chase Bank, N.A., as administrative agent, and each lender party thereto (the “Fourth Amendment”) and the Second Amendment to Credit Agreement, dated as of January 22, 2024, by and among us as parent borrower, the other loan parties party thereto, JPMorgan Chase Bank, N.A., as administrative agent, and each lender party thereto (the “Second Amendment”).

Amortization of Intangible Assets


	Years Ended December 31,
(Dollars in millions)	2025		2024
Amortization of intangible assets	$	247	$	245

Amortization of intangible assets increased $2 million in 2025, compared to 2024, primarily due to the impact of foreign exchange rates on intangible assets at foreign locations.

Interest Expense, Net


	Years Ended December 31,
(Dollars in millions)	2025		2024
Interest expense, net	$	198	$	263

Interest expense, net, decreased by $65 million in 2025, compared to 2024, primarily as a result of the issuance of $1.4 billion of Convertible Notes (as defined and described further below under “Convertible Notes”) in May 2024, at a coupon rate of 1.25%, $1.2 billion of the proceeds of which were used to pay down our loans under the Term Loan Facility, which had an interest rate of approximately 7.8%. In addition, in July 2024, we entered into the Fourth Amendment, and in January 2025, we entered into the Fifth Amendment, each of which decreased the applicable margin for both the USD Tranche B and EUR Tranche B by 0.25%. Interest expense, net was also lower in 2025 as compared to the prior year as a result of various voluntary prepayments totaling $400 million in 2025 and $426 million in 2024, on loans under the Term Loan Facility.

Loss on Extinguishment of Debt


	Years Ended December 31,
(Dollars in millions)	2025		2024
Loss on extinguishment of debt	$	10	$	57

In 2025, we recorded a loss on extinguishment of debt as a result of acceleration of deferred financing and original issue discount costs in connection with voluntary prepayments made in 2025 as well as the repricing our USD Tranche B and EUR Tranche B in connection with the Fifth Amendment.

In 2024, we recorded a loss on extinguishment of debt as a result of the acceleration of deferred financing and original issue discount costs associated with the Second Amendment in January 2024, the issuance of Convertible Notes in May 2024 and the Fourth Amendment in July 2024. In addition, we recorded a loss on extinguishment of debt as a result of the acceleration of deferred financing and original issue discount costs as a result of voluntary prepayments under the Term Loan Facility made in 2024, as described above.

Other Expense (Income), Net


	Years Ended December 31,
(Dollars in millions)	2025		2024
Other expense (income), net	$	16	$	(2	)

Other expense (income), net, for 2025 and 2024 primarily related to net foreign exchange and fair value gains and losses.

Provision (Benefit) for Income Taxes


	Years Ended December 31,
(Dollars in millions)	2025		2024
Provision (benefit) for income taxes	$	9	$	(10	)

Our effective tax rates for 2025 and 2024 were 2.9% and (5.7)%, respectively. Our effective tax rate for 2025 was lower than the U.S. statutory tax rate, mainly due to the U.S. deduction for foreign derived intangible income (“FDII”), research and development tax credits and valuation allowance release partially offset by foreign withholding taxes and a waiver of deductions related to the U.S. base erosion payments.

Our effective tax rate for 2024 was lower than the U.S. statutory tax rate, mainly due to the U.S. deduction for FDII and valuation allowance release partially offset by foreign withholding taxes.

As of December 31, 2025 and 2024, total gross unrecognized tax benefits, which excludes interest and penalties, was $95 million and $94 million, respectively. The net increase was primarily due to the addition of income tax reserves related to intercompany transactions offset by a decrease related to audit settlements.

We accrue interest and, if applicable, penalties for any uncertain tax positions. Interest and penalties are classified as a component of income tax expense. As of December 31, 2025 and 2024, we accrued interest on unrecognized tax benefits of approximately $10 million and $8 million, respectively.

We are subject to examination by U.S. federal, state and foreign tax authorities. The U.S. federal statute of limitations remains open for tax years 2020 through the present. We are under U.S. federal audit by the Internal Revenue Service for the years ended December 31, 2020, 2021, and 2022, and do not expect and are not aware of any unrecorded material adjustments. The statute of limitations for our tax filings in other jurisdictions varies between fiscal years 2020 through the present. We also have certain prior year federal credit carryforwards, state tax loss carryforwards and state tax credit carryforwards that are subject to examination to the extent used in an open year.

Our future effective tax rate depends on various factors, including the impact of tax legislation, further interpretations and guidance from U.S. federal and state governments on the impact of proposed regulations issued by the Internal Revenue Service, as well as the geographic composition of our pre-tax income and changes in income tax reserves for unrecognized tax benefits. We monitor these factors and timely adjust our estimates of the effective tax rate accordingly. While we believe we have adequately provided for all tax positions, amounts asserted by taxing authorities could materially differ from our accrued positions as a result of uncertain and complex application of tax laws and regulations. Additionally, the recognition and measurement of certain tax benefits include estimates and judgment by management. Accordingly, we could record additional provisions or benefits for U.S. federal, state, and foreign tax matters in future periods as new information becomes available.

The Organisation for Economic Co-operation and Development (“OECD”) and participating OECD member countries have issued rules introducing a 15% global minimum corporate tax rate for large multinational enterprise groups, also known as “Pillar Two.” The adoption and effective dates of these rules vary by country. Although the enacted and effective legislation in some countries was applicable to us as of January 1, 2024, the legislation did not have a material impact on our 2025 financial results. We will continue to monitor and evaluate the impact of any developing legislation, but we do not anticipate it will have a material impact on our results in future periods.

On July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was enacted into law. The OBBBA includes changes to the U.S. tax code, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework, and the restoration of favorable tax treatment for certain business provisions. The OBBBA has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. These changes to the U.S.

tax code have not had a material impact on our results since the enactment of OBBBA and we do not anticipate these changes to the U.S. tax code will have a material impact on our results in future periods.

Liquidity and Capital Resources

Cash and cash equivalents at December 31, 2025 and 2024 totaled $675 million and $714 million, respectively. The primary driver of our current and anticipated future cash flows is, and we expect will continue to be, cash generated from operations, consisting primarily of our net income (loss), excluding non-cash charges and changes in operating assets and liabilities.

Our total cash and cash equivalents at December 31, 2025 consisted of $199 million held in the United States and $476 million held by our foreign subsidiaries. We believe that our current cash and investments position and available borrowing capacity, together with the cash anticipated to be generated from our operations, will be sufficient to satisfy our estimated working capital needs, planned capital expenditure requirements, payments of debt, potential settlement of convertible debt conversions and any future cash dividends declared by our Board of Directors or share repurchases through at least the next 12 months and the foreseeable future.

In periods when our sales are growing, higher sales to customers will result in increased trade receivables, and inventories will generally increase as we build products for future sales. This may result in lower cash generated from operations. Conversely, in periods when our sales are declining, our trade accounts receivable and inventory balances will generally decrease, resulting in increased cash from operations.

Net cash provided by operating activities was $645 million for 2025 and resulted from net income of $295 million, which included non-cash charges of $275 million, mainly the result of $344 million in depreciation and amortization, partially offset by $196 million in deferred income taxes and a net decrease in working capital of $75 million. The net decrease in working capital was primarily due to increases in current and non-current accrued compensation of $83 million as a result of higher variable compensation, accounts payable of $55 million and income taxes payable of $21 million, partially offset by increases in inventories of $50 million, as a result of higher business levels, as well as a decrease in other current and non-current liabilities of $32 million.

Net cash provided by operating activities was $528 million for 2024 and resulted from net income of $190 million, which included non-cash charges of $334 million, offset by a net decrease in working capital of $4 million. The net decrease in working capital was primarily due to an increase in income taxes payable of $49 million, an increase in accounts payable of $21 million, a decrease in other current and non-current assets of $25 million, primarily related to a decrease in right of use assets, and a decrease in inventory of $20 million. This net decrease in working capital was partially offset by a decrease in other current and non-current liabilities of $43 million, a decrease in current and non-current accrued compensation of $32 million as a result of lower variable compensation and an increase in accounts receivable of $36 million.

Net cash used in investing activities was $145 million for 2025, consisting primarily of $148 million in capital expenditures, primarily related to new facility additions in Malaysia and China.

Net cash used in investing activities was $117 million for 2024, consisting primarily of $118 million in capital expenditures.

Net cash used in financing activities was $562 million for 2025, consisting primarily of normal quarterly debt payments and voluntary debt prepayments that together totaled $451 million, as well as the repurchase of our common stock for $45 million and dividend payments of $59 million.

Net cash used in financing activities was $549 million for 2024, primarily due to net proceeds from the issuance of Convertible Notes of $1.4 billion and incremental loans under the Term Loan Facility in an aggregate principal amount of $761 million. The proceeds of the incremental loans under the Term Loan Facility were used in part to prepay the USD Tranche A term loans outstanding under the Amended Credit Agreement (as defined and described further below under “Credit Facilities”) in full in an aggregate principal amount of $744 million, and the proceeds of the Convertible Notes were used in part to prepay a portion of the USD Tranche B loans in an aggregate principal amount of $1.2 billion. In addition, there were normal quarterly debt payments and voluntary prepayments that totaled $476 million. We also made payments of $167 million to purchase a capped call option related to the Convertible Notes, $33 million for debt financing costs and $59 million for dividends.

On July 25, 2011, our Board of Directors approved a share repurchase program for the repurchase of up to an aggregate of $200 million of our outstanding common stock from time to time in open market purchases, privately negotiated transactions or through other appropriate means. The timing and quantity of any shares repurchased depends upon a variety of factors, including business conditions, stock market conditions and business development activities, including, but not limited to, merger and acquisition opportunities. These repurchases may be commenced, suspended or discontinued at any time without prior notice. Any repurchased shares are held by us as authorized but unissued shares.

In 2025, we repurchased approximately 546,000 shares of our common stock for total consideration of $45 million. We have

repurchased approximately 3.1 million shares of common stock for approximately $172 million pursuant to the program since its adoption.

Holders of our common stock are entitled to receive dividends when and if they are declared by our Board of Directors. For the years ended December 31, 2025 and 2024, we paid cash dividends of $59 million in the aggregate or $0.88 per share, respectively.

On February 9, 2026, our Board of Directors declared a quarterly cash dividend of $0.25 per share to be paid on March 6, 2026 to shareholders of record as of February 23, 2026. Future dividend declarations, if any, as well as the record and payment dates for such dividends, are subject to the final determination of our Board of Directors.

Credit Facilities

In connection with the completion of the Atotech Acquisition, on August 17, 2022 (the “Effective Date”) we entered into a credit agreement with JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, Barclays Bank PLC, and the lenders from time to time party thereto, which we have amended several times since including, most recently, in February 2026 (as amended, the “Amended Credit Agreement”). As of December 31, 2025, the Amended Credit Agreement provided for (i) a senior secured term loan facility comprised of two tranches: a $2.2 billion loan (the “USD Tranche B”) and a €587 million loan (the “Euro Tranche B” and together with the USD Tranche B, the “Term Loan Facility”) and (ii) a senior secured revolving credit facility of $675 million (the “Revolving Facility” and, together with the Term Loan Facility, the “Credit Facilities”), with the commitments under each of the foregoing facilities subject to increase from time to time subject to certain conditions. In each of January 2025, June 2025, August 2025 and October 2025, we made an additional voluntary prepayment of $100 million principal amount to the USD Tranche B loan.

As of December 31, 2025, borrowings under the Credit Facilities bore interest at a rate per annum equal to, at our option, any of the following, plus, in each case, an applicable margin: (a) with respect to the USD Tranche B and the Revolving Facility, (x) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the prime rate quoted in The Wall Street Journal, or (3) a forward-looking term rate based on the variable secured overnight financing rate (“Term SOFR”) (plus, with respect to the Revolving Facility, an applicable credit spread adjustment) for an interest period of one month, plus 1.00%, and (y) a Term SOFR rate (plus, with respect to the Revolving Facility, an applicable credit spread adjustment) for the interest period relevant to such borrowing, subject to a rate floor of (I) with respect to the USD Tranche B, 0.50% and (II) with respect to the Revolving Facility, 0.0%; and (b) with respect to the Euro Tranche B, a Euro Interbank Offered Rate (“EURIBOR”) rate determined by reference to the costs of funds for Euro deposits for the interest period relevant to such borrowing adjusted for certain additional costs, subject to a EURIBOR rate floor of 0.0%. As of December 31, 2025, the applicable margins for borrowings under the Credit Facilities were (i) under the USD Tranche B, 1.00% with respect to base rate borrowings and 2.00% with respect to Term SOFR borrowings, (ii) under the Euro Tranche B, 2.50% and (iii) under the Revolving Facility, 1.50% with respect to base rate borrowings and 2.50% with respect to Term SOFR borrowings.

In addition to paying interest on outstanding principal under the Credit Facilities, we are required to pay a commitment fee in respect of the unutilized commitments under the Revolving Facility. The commitment fee is subject to adjustment based on our first lien net leverage ratio as of the end of the preceding fiscal quarter. We must also pay customary letter of credit fees and agency fees. As of December 31, 2025, the commitment fee was 0.25% per annum.

As of December 31, 2025, the principal outstanding on the Term Loan Facility was $2.9 billion, and the weighted average interest rate was 5.4%. As of December 31, 2025, the Revolving Facility had a maturity date in August 2027 while the Term Loan Facility had a maturity date in August 2029. As of December 31, 2025, there were no borrowings under the Revolving Facility.

As of December 31, 2025, we were required to make scheduled quarterly principal payments equal to approximately $10 million with respect to the USD Tranche B and approximately €2 million with respect to the Euro Tranche B, in each case with the balance due thereunder on the maturity date of the Term Loan Facility. There is no scheduled amortization under the Revolving Facility. Any principal amount outstanding under the Revolving Facility is due and payable in full on the maturity date of the Revolving Facility.

Under the Amended Credit Agreement, we are required to prepay outstanding term loans, subject to certain exceptions, with portions of our annual excess cash flow as well as with the net cash proceeds of certain of its asset sales, certain casualty and condemnation events and the incurrence or issuances of certain debt. If at any time the aggregate amount of outstanding loans, unreimbursed letter of credit drawings and undrawn letters of credit under the Revolving Facility exceeds the aggregate commitments under the Revolving Facility, we are required to repay outstanding loans and/or cash collateralize letters of credit, with no reduction of the commitment amount.

We may voluntarily prepay, and have voluntarily repaid, outstanding loans under the Credit Facilities from time to time, subject to certain conditions, without premium or penalty other than customary “breakage” costs with respect to Term SOFR or EURIBOR loans and any prepayment premium that might be applicable to repayments we make prior to August 4, 2026. Additionally, we may voluntarily reduce the unutilized portion of the commitment amount under the Revolving Facility.

All obligations under the Credit Facilities are guaranteed by certain of our wholly-owned domestic subsidiaries and are required to be guaranteed by certain of our future wholly-owned domestic subsidiaries, and are secured by substantially all of our assets and the assets of such subsidiaries, subject to certain exceptions and exclusions.

Under the Amended Credit Agreement, we have the ability to incur additional incremental debt facilities in an amount up to (x) the greater of (1) $1,011 million and (2) 75% of consolidated last 12 months earnings before interest, taxes, depreciation, and amortization, plus (y) an amount equal to the sum of all voluntary prepayments of term loans under the Term Loan Facility, plus (z) an additional unlimited amount subject to pro forma compliance with certain leverage ratio tests (based on the security and priority of such incremental debt).

The Amended Credit Agreement contains customary representations and warranties, covenants and provisions relating to events of default. As of December 31, 2025, we were in compliance with all covenants under the Amended Credit Agreement. The USD Tranche B and the Euro Tranche B are not subject to financial maintenance covenants.

2026 Amendment and Prepayment of Credit Facilities

On February 4, 2026 (the “Sixth Amendment Effective Date”), we entered into the Sixth Amendment to Credit Agreement (the “Sixth Amendment”). Pursuant to the Sixth Amendment, we (i) refinanced our existing USD Tranche B loan and Euro Tranche B loan with a new $914 million USD Tranche B loan and a new €587 million Euro Tranche B loan, (ii) refinanced and increased the commitments under our existing Revolving Credit Facility with a new $1 billion Revolving Credit Facility, (iii) decreased the applicable margin for the USD Tranche B from 2.00% to 1.75% with respect to Term SOFR borrowings and from 1.00% to 0.75% with respect to base rate borrowings, (iv) decreased the applicable margin for the Euro Tranche B from 2.50% to 2.00%, (v) decreased the applicable margin under the Revolving Facility from 2.50% to 1.75% with respect to SOFR borrowings and from 1.50% to 0.75% with respect to base rate borrowings, (vi) eliminated the credit spread adjustment applicable to SOFR borrowings of the Revolving Facility, (vii) extended the maturity of the Term Loan Facility to February 2033 and (viii) extended the maturity of the Revolving Facility to February 2031. Additionally, pursuant to the Sixth Amendment, we (a) extended the period during which a 1.00% prepayment premium may be required if we prepay any loans under the USD Tranche B or the Euro Tranche B in connection with a repricing transaction until the date that is six months following the Sixth Amendment Effective Date, and (b) reduced the amount of scheduled quarterly principal payments we are required to make with respect to the USD Tranche B to approximately $2 million. The repriced USD Tranche B loan and Euro Tranche B loan were issued without original issue discount.

On February 4, 2026, concurrently with the effectiveness of the Sixth Amendment, we made a voluntary prepayment of approximately $1.3 billion principal amount to the USD Tranche B loan using the net proceeds from the 2034 Notes (as defined below), together with cash on hand, reducing the principal from $2.2 billion to $914 million.

Convertible Notes

On May 16, 2024, we completed a private offering of $1.4 billion aggregate principal amount of convertible senior notes due 2030 (the “Convertible Notes”).

We used approximately $167 million of the net proceeds from the offering to pay the cost of the capped call transactions described below. We used the remaining net proceeds from the offering to repay approximately $1.2 billion in borrowings outstanding under the USD Tranche B, together with accrued interest, as well as for general corporate purposes.

Indenture and the Convertible Notes

On May 16, 2024, we entered into an indenture (the “Indenture”) with respect to the Convertible Notes with U.S. Bank Trust Company, National Association, as trustee. Under the Indenture, the Convertible Notes are senior unsecured obligations of ours and bear interest at a coupon rate of 1.25% per annum, with interest payable semiannually in arrears on June 1 and December 1 of each year, beginning on December 1, 2024. The Convertible Notes will mature on June 1, 2030, unless earlier converted, redeemed or repurchased in accordance with their terms.

The conversion rate for the Convertible Notes is initially 6.4799 shares of our common stock per one thousand dollars principal amount of the Convertible Notes, which is equivalent to an initial conversion price of approximately $154.32 per share. The conversion rate is subject to adjustment upon the occurrence of certain events.

Subject to certain conditions, on or after June 5, 2027, we may redeem for cash all or any portion of the Convertible Notes at a redemption price equal to 100% of the principal amount of the Convertible Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date, if the last reported sale price of our common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on, and including, the trading day immediately preceding the date the notice of redemption is sent.

Upon conversion, we will pay cash up to the aggregate principal amount of the Convertible Notes to be converted and pay or deliver, as the case may be, cash, shares of common stock or a combination of cash and shares of common stock, at our election, in respect of the remainder, if any, of our conversion obligation in excess of the aggregate principal amount of the Convertible Notes being converted. Prior to the close of business on the business day immediately preceding March 1, 2030, noteholders may convert all or any portion of their Convertible Notes under the following circumstances:

•

during any calendar quarter (and only during such calendar quarter) commencing after the calendar quarter ended September 30, 2024, if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the applicable conversion price of the Convertible Notes on each applicable trading day (approximately $200.62 per share based on an initial conversion price of approximately $154.32 per share, which is subject to adjustment upon the occurrence of certain events);

•

during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of Convertible Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the applicable conversion rate on each such trading day;

•

if we call any or all of the Convertible Notes for redemption, at any time prior to the close of business on the second scheduled trading day immediately preceding the redemption date; or

•

upon the occurrence of specified corporate events as specified in the Indenture.

On or after March 1, 2030, until the close of business on the second scheduled trading day immediately preceding the maturity date, noteholders may convert all or any portion of their Convertible Notes at any time.

If we undergo a fundamental change (as defined in the Indenture) prior to the maturity date of the Convertible Notes, holders may require us to repurchase for cash all or any portion of their Convertible Notes at a fundamental change repurchase price equal to 100% of the principal amount of the Convertible Notes to be repurchased, plus any accrued and unpaid interest to, but excluding, the fundamental change repurchase date.

The Indenture contains customary terms and covenants, including that upon certain events of default that are occurring and continuing, either the trustee or the holders of at least 25% in aggregate principal amount of the outstanding Convertible Notes may declare 100% of the principal of, and accrued and unpaid interest, if any, on, all the Convertible Notes to be due and payable.

As of December 31, 2025, the Convertible Notes were classified as a long-term liability, net of issuances costs, on the consolidated balance sheet. The Convertible Notes were issued at par and costs associated with the issuance of the Convertible Notes are amortized to interest expense over the contractual term of the Convertible Notes. There were no conversions of the Convertible Notes in 2025 and 2024. As of December 31, 2025, the effective interest rate of the Convertible Notes was 1.56%.

Capped Call Transactions

On May 13, 2024, in connection with the pricing of the Convertible Notes, and on May 14, 2024, in connection with the exercise in full by the initial purchasers of their option to purchase additional Convertible Notes, we entered into privately negotiated capped call transactions with certain of the initial purchasers of the Convertible Notes or their respective affiliates and other financial institutions. The capped call transactions are expected generally to reduce the potential dilution to our common stock upon conversion of any Convertible Notes and/or offset any cash payments that we are required to make in excess of the principal amount of any converted Convertible Notes, as the case may be, with such reduction and/or offset subject to a cap initially equal to $237.42 per share, which represents a premium of 100% over the last reported sale price of $118.71 per share of our common stock on The Nasdaq Global Select Market on May 13, 2024, and is subject to customary adjustments under the terms of the capped call transactions.

2034 Notes

On February 4, 2026, we completed a private offering (the “2034 Notes Offering”) of €1.0 billion aggregate principal amount of senior notes due 2034 (the “2034 Notes”). The Notes were sold in a private placement to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”), and

to non-U.S. persons outside the United States in reliance on Regulation S under the Securities Act. We used the net proceeds from the Offering, together with cash on hand, to prepay approximately $1.3 billion of the USD Tranche B.

Indenture and the 2034 Notes

On February 4, 2026, we and the Guarantors (as defined below) entered into an indenture (the “Indenture”) with respect to the 2034 Notes with U.S. Bank Trust Company, National Association, as trustee (the “Trustee”).

Under the Indenture, the 2034 Notes bear interest at a rate of 4.250% per annum, with interest payable semiannually in arrears on February 15 and August 15 of each year, beginning on August 15, 2026. The 2034 Notes will mature on February 15, 2034, unless earlier redeemed or repurchased in accordance with their terms.

The 2034 Notes are unconditionally guaranteed, on a senior unsecured basis, jointly and severally, by our existing and future subsidiaries that guarantee the Credit Agreement or are required to become guarantors under certain circumstances and subject to certain exceptions (the “Guarantors”).

The 2034 Notes and the guarantees are general senior unsecured obligations of us and the Guarantors. The 2034 Notes and guarantees will be:

•

pari passu in right of payment with any of our and the Guarantors’ existing and future unsubordinated indebtedness (including the Credit Agreement);

•

effectively subordinated to our and the Guarantors’ existing and future secured indebtedness (including the Credit Agreement) to the extent of the value of the assets securing such indebtedness;

•

senior in right of payment to any of our and the Guarantors’ future subordinated indebtedness;

•

structurally senior to any existing and future indebtedness of us that is not guaranteed by the Guarantors (including the Convertible Notes); and

•

structurally subordinated to any existing and future indebtedness and other liabilities of our and the Guarantors’ subsidiaries that are not and do not become Guarantors.

At any time prior to February 15, 2029, we may redeem the 2034 Notes in whole or in part at a redemption price equal to 100% of their principal amount, plus a make-whole premium, plus accrued and unpaid interest, if any, and additional amounts, if any, to, but excluding, the redemption date.

At any time and from time to time on or after February 15, 2029, we may redeem for cash all or any portion of the 2034 Notes at a redemption price equal to the percentage of principal amount set forth below, plus accrued and unpaid interest, if any, and additional amounts, if any, to, but excluding, the applicable redemption date, if redeemed during the twelve-month period beginning on February 15 of the year indicated below:


Year				Percentage
2029				102.125%
2030				101.0625%
2031 and thereafter				100.000%

At any time and from time to time prior to February 15, 2029, we may redeem up to 40% of the original aggregate principal amount of the 2034 Notes using the net cash proceeds of certain equity offerings at a redemption price equal to 104.250%.

In the event of certain developments affecting taxation, we may elect to redeem all, but not less than all, of the 2034 Notes at 100% of their principal amount, plus accrued and unpaid interest, if any, and additional amounts, if any, to, but excluding, the date fixed for redemption.

Upon the occurrence of a change of control triggering event (as defined in the Indenture), each holder of the 2034 Notes may require us to repurchase all or a portion of their 2034 Notes at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any, and additional amounts, if any, to, but excluding, the repurchase date.

The Indenture contains customary terms and covenants that limit the ability of us and our Restricted Subsidiaries (as defined in the Indenture) to, among other things, (i) incur liens, (ii) provide guarantees and (iii) consolidate, merge or sell or otherwise dispose of substantially all their assets.

The Indenture also provides for customary events of default. Upon certain events of default that are occurring and continuing, either the Trustee or the holders of at least 30% in aggregate principal amount of the outstanding 2034 Notes may declare the principal of, and accrued and unpaid interest, if any, and additional amounts, if any, on, all the 2034 Notes to be due and payable. In the event of certain insolvency and bankruptcy related events of default specified in the Indenture, the principal of, and accrued and unpaid interest, if any, and additional amounts, if any, on, all the 2034 Notes shall automatically become due and payable.

Based on current interest rates, we expect that the annualized cash interest savings as a result of (i) the Sixth Amendment, (ii) the voluntary prepayment of approximately $1.3 billion principal amount to the USD Tranche B loan and (iii) the 2034 Notes Offering will be approximately $27 million.

Lines of Credit and Borrowing Arrangements

Certain of our Japanese subsidiaries have lines of credit and a financing facility with various financial institutions, many of which generally expire and are renewed at three-month intervals with the remaining having no expiration date. The lines of credit and financing facility provided for aggregate borrowings as of December 31, 2025 and December 31, 2024 of up to an equivalent of $13 million and $19 million, respectively. There were no borrowings outstanding under these arrangements at December 31, 2025 and December 31, 2024.

Derivatives

We enter into derivative instruments for risk management purposes only, including derivatives designated as hedging instruments and those utilized as economic hedges. We operate internationally, and in the normal course of business, are exposed to fluctuations in interest rates and foreign exchange rates. These fluctuations can increase the costs of financing, investing and operating the business. We have used derivative instruments, such as foreign exchange forward contracts, options, and net investment hedges, to manage certain foreign currency exposure, and interest rate swaps and caps to manage certain interest rate exposure. We do not enter into derivative instruments for trading or speculative purposes.

By nature, all financial instruments involve market and credit risks. We enter into derivative instruments with major investment grade financial institutions and no collateral is required. We have policies to monitor the credit risk of these counterparties. While there can be no assurance, we do not anticipate any material non-performance by any of these counterparties.

Interest Rate Swaps

We have various interest rate swap agreements, which are cash-flow hedges, maturing through January 31, 2029 that exchange a one-month forward-looking term rate based on Term SOFR paid on the outstanding balance of our USD Term Loan Facility, to a fixed rate. The notional value of the agreements was $1,900 million and $2,600 million as of December 31, 2025 and December 31, 2024, respectively. We acquired USD London Interbank Offered Rate (“USD LIBOR”) based interest rate cap agreements as a result of the Atotech Acquisition and had utilized these agreements to offset Term SOFR on our Term Loan Facility. The interest rate cap agreements expired on January 31, 2024.

The interest rate swaps are recorded at fair value on the consolidated balance sheets and changes in the fair value are recognized in OCI. To the extent these arrangements are no longer effective hedges, the hedging relationship will be discontinued and changes in the fair value of the hedging instruments from the last assessment period that were effective up to the current period will be recorded immediately in earnings. Amounts previously recorded in OCI will remain in OCI and will be reclassified to earnings when the interest payments impact consolidated earnings. If we determine that the interest payments are unlikely to occur, amounts previously recorded in OCI will be reclassified to earnings immediately. Changes in the fair value of interest rate caps were recorded immediately in earnings, as we did not designate these instruments as hedges and therefore these instruments did not qualify for hedge accounting. The cash flows resulting from interest rate agreements are classified in cash flows from operating activities. We expect an immaterial amount of gains or losses to be reclassified from accumulated OCI into interest expense related to interest rate swaps during the twelve months ending December 31, 2026.

Foreign Exchange Forward Contracts

We hedge a portion of our forecasted foreign currency denominated intercompany sales of inventory and certain of our foreign subsidiaries’ operating expenses, over a maximum period of twenty-four months, using foreign exchange forward contracts accounted for as cash-flow hedges. To the extent these derivatives are effective in offsetting the variability of the hedged cash flows, and otherwise meet the hedge accounting criteria, changes in the derivatives’ fair value are not included in current earnings but are included in OCI in stockholders’ equity. These changes in fair value will subsequently be reclassified into earnings as applicable, when the forecasted transaction occurs. To the extent that a previously designated hedging transaction is no longer an effective hedge, any ineffectiveness measured in the hedging relationship is recorded in earnings in the period it occurs. The cash flows resulting from foreign exchange forward contracts are classified in the consolidated statements of cash flows as part of cash flows from operating activities. Gains and losses on foreign exchange forward contracts that qualify for hedge accounting are classified in cost of revenues in 2025 and 2024 and totaled gains of $4 million and $6 million in 2025 and 2024, respectively. There were no ineffective portions of the derivatives recorded in 2025 and 2024. We expect an immaterial amount of gains or losses to be reclassified from accumulated OCI into cost of revenues related to foreign exchange forward contracts during the twelve months ending December 31, 2026.

We also enter into foreign exchange forward contracts to hedge against certain monetary asset and liability accounts on the consolidated balance sheet to mitigate the risk associated with certain foreign currency transactions in the ordinary course of business. These derivatives are not designated as cash flow hedging instruments and gains or losses from these derivatives are recorded immediately in other expense (income), net. The net foreign exchange loss on these derivatives was $3 million in 2025, compared to a gain of $1 million in 2024. The cash flows resulting from foreign exchange forward contracts are classified in our consolidated statements of cash flows as part of cash flows from operating activities.

We had foreign exchange forward contracts designated as cash flow hedges with notional amounts totaling $5 million and $74 million outstanding at December 31, 2025 and at December 31, 2024, respectively. The Canadian dollar was the only notional contract designated as a cash flow hedging instrument for 2025, and the Japanese yen and the South Korean won were the largest notional contracts designated as cash flow hedging instruments for 2024. We had foreign exchange forward contracts not designated as hedging instruments with notional amounts totaling $367 million and $154 million outstanding at December 31, 2025 and at December 31, 2024, respectively. The Euro, Chinese yuan, British pound and New Taiwan dollar were the largest notional contracts for 2025, and the British pound and Chinese yuan were the largest notional contracts for 2024 for balance sheet hedges not designated as a hedging instrument.

Net Investment Hedges

We have designated certain Euro-denominated debt as a net investment hedge to hedge a portion of our net investments in certain of our entities with functional currencies denominated in the Euro. As of December 31, 2025, we designated as a net investment hedge €587 million in aggregate principal amount of our Euro Tranche B loan. On February 4, 2026, in connection with the 2034 Notes Offering, we also designated as a net investment hedge €1.0 billion in aggregate principal amount of the 2034 Notes. For these net investment hedges, we record foreign currency remeasurement gains and losses within a component of OCI. Recognition in earnings of amounts previously recorded in accumulated OCI is limited to circumstances such as the complete or substantially complete liquidation or sale of the net investment in the hedged foreign operations.

Contractual Obligations

As of December 31, 2025, we are a party to purchase commitments for certain inventory components and other equipment and services used in our normal operations totaling approximately $490 million. The majority of these purchase commitments covered by these arrangements are for periods of less than one year.

In addition, we have various operating leases for real estate and non-real estate items. The non-real estate leases are mainly comprised of automobiles but also include office equipment and other lower-valued items. We also have a small number of finance leases for real estate.

Future payments related to operating and finance leases are as follows:


(Dollars in millions)	Operating		Finance
Year Ending December 31,	Leases		Leases
2026	$	35	$	6
2027		31		6
2028		23		6
2029		20		6
2030		16		6
Thereafter		118		102
Total lease payments		243		132
Less: imputed interest		41		57
Total lease liabilities	$	202	$	75

Contractual maturities of our debt obligations as of December 31, 2025 are as follows:


(Dollars in millions)
Year	Amount
2026	$	51
2027		51
2028		51
2029		2,725
2030		1,400

We have a number of defined benefit pension plans, which cover some of our employees outside the United States. As of December 31, 2025, our estimated benefit payments over the next 10 years amount to $93 million. The majority of the benefit payments covered by these arrangements occurs after 2030.

Recent Accounting Pronouncements

For information on recently issued accounting pronouncements, see Note 4 to the Notes to Consolidated Financial Statements included in Part II, Item 8, “Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

Market Risk and Sensitivity Analysis

Our primary exposures to market risks include fluctuations in interest rates on our Term Loan Facility, as defined and as described further in Item 7 of this Annual Report on Form 10-K, as well as fluctuations in foreign currency exchange rates.

Foreign Exchange Rate Risk

Our currency risk consists primarily of foreign currency denominated firm commitments, forecasted foreign currency denominated intercompany and third-party transactions, and net investments in certain subsidiaries. We use both nonderivative and derivative instruments to manage our earnings and cash flow exposure to changes in currency exchange rates.

We mainly enter into foreign exchange forward contracts to reduce currency exposure arising from intercompany sales of inventory and certain of our foreign subsidiaries’ operating expenses. We also enter into foreign exchange forward contracts to reduce foreign exchange risks arising from the change in fair value of certain foreign currency denominated assets and liabilities.

We had foreign exchange forward contracts designated as cash flow hedges with notional amounts totaling $5 million and $74 million outstanding at December 31, 2025 and December 31, 2024, respectively. The Canadian dollar was the only notional contract designated as a cash flow hedging instrument for 2025, and the Japanese yen and the South Korean won were the largest notional contracts designated as cash flow hedging instruments for 2024. We had foreign exchange forward contracts not designated as hedging instruments with notional amounts totaling $367 million and $154 million outstanding at December 31, 2025 and December 31, 2024, respectively. For 2025, the Euro, Chinese yuan, British pound and New Taiwan dollar were the largest notional contracts and for 2024 British pound and Chinese yuan were the largest notional contracts for balance sheet hedges not designated as a hedging instrument. The potential fair value loss for a hypothetical 10% adverse change in the currency exchange rate on our foreign exchange forward contracts at December 31, 2025 and 2024 would be immaterial.

We designated certain Euro-denominated debt as a net investment hedge to hedge a portion of our net investments in certain of our entities with functional currencies denominated in the Euro. As of December 31, 2025, we designated as a net investment hedge €587 million in aggregate principal amount of our Euro Tranche B loan. On February 4, 2026, in connection with the 2034 Notes Offering, we also designated as a net investment hedge €1.0 billion in aggregate principal amount of 2034 Notes. For these nonderivative instruments, we defer recognition of the foreign currency remeasurement gains and losses within the foreign currency translation adjustment component of OCI.

Interest Rate Risk

We hold our cash and cash equivalents for working capital purposes. Some of the cash equivalents are subject to market risk. This means that a change in prevailing interest rates may cause the principal amount of such cash equivalents to fluctuate. To minimize this risk, we maintain a portion of our portfolio of cash and cash equivalents in money market funds. Due to the short-term nature of these instruments, we believe that we do not have any material exposure to changes in the fair value of our cash equivalents as a result of changes in interest rates. Declines in interest rates, however, would reduce future interest income. The effect of a hypothetical 10% increase or decrease in overall interest rates would not have had a material impact on our operating results or the total fair value of our portfolio.

We have various interest rate swap agreements as described further in “Management's Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies and Estimates—Derivatives” that exchange the one-month Term SOFR interest rate to a fixed rate in order to manage the exposure to interest rate fluctuations associated with the variable Term SOFR interest rate paid on the outstanding balance of the Term Loan Facility.

We are exposed to market risks related to fluctuations in interest rates related to our Term Loan Facility. As of December 31, 2025, the principal outstanding on our Term Loan Facility was $2.9 billion, at a weighted average interest rate of 5.4%. A 10% increase or decrease in the weighted average interest rate as of December 31, 2025 would increase or decrease annual interest expense by approximately $9 million, excluding the effect of our interest rate hedges. Because the notional amount of our interest rate hedges as of December 31, 2025 equaled approximately 66% of the principal outstanding on our Term Loan Facility, the resulting net impact to interest expense would be approximately $4 million. The quantitative information presented reflects the terms of our Term Loan Facility as of December 31, 2025 and does not reflect the Sixth Amendment and 2034 Notes Offering completed in 2026. For a discussion of the expected impact on our future interest expense and liquidity, see Part II—Item 7 Management’s Discussion and Analysis of Financial Condition and Results of Operations— Liquidity and Capital Resources.

Equity Price Risk

We are exposed to equity price risk related to the conversion options embedded in our Convertible Notes. We issued $1.4 billion of Convertible Notes in May 2024. The Convertible Notes bear interest at a fixed rate and therefore have no financial statement risk associated with changes in market interest rates. However, the fair value of Convertible Notes fluctuates when interest rates change. We carry the Convertible Notes at face value less an unamortized discount on our consolidated balance sheet, and we present the fair value for required disclosure purposes only. Additionally, the fair value can be affected when the market price of our common stock fluctuates. The potential value of the shares to be distributed to the holders of our Convertible Notes changes when the market price of our stock fluctuates. The Convertible Notes will mature on June 1, 2030 unless earlier repurchased by us or converted pursuant to their terms. Additional details about the terms of the Convertible Notes can be found in Note 14 to the Notes to Consolidated Financial Statements contained in Part II, Item 8 of this Annual Report on Form 10-K.

Item 8. Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholders of MKS Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of MKS Inc. and its subsidiaries (the “Company”) as of December 31, 2025 and 2024, and the related consolidated statements of operations and comprehensive income (loss), of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2025, including the related notes and schedule of valuation and qualifying accounts for each of the three years in the period ended December 31, 2025 appearing after Item 16 (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Revenue Recognition – Certain Product Revenue

As described in Note 3 to the consolidated financial statements, revenue is recognized when or as obligations under the terms of a contract with a customer have been satisfied by the Company and control has transferred to the customer. The majority of the Company’s performance obligations, and associated revenue, are transferred to customers at a point in time, generally upon shipment of a product to the customer or receipt of the product by the customer and without significant judgments. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods or providing services. The Company’s total net product revenue was $3.4 billion for the year ended December 31, 2025, of which a majority relates to certain product revenue.

The principal consideration for our determination that performing procedures relating to revenue recognition for certain product revenue is a critical audit matter is a high degree of auditor effort in performing procedures related to the Company’s revenue recognition for certain product revenue.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the revenue recognition process, including controls over the recording of revenue for certain product revenue at the consideration once control passes to the customer. These procedures also included, among others (i) testing revenue recognized for a sample of certain product revenue transactions by obtaining and inspecting source documents, such as purchase orders, invoices, and proof of shipment or delivery; (ii) testing revenue recognized for a sample of certain product revenue transactions before and after period end by obtaining and inspecting source documents, such as purchase orders, invoices and proof of shipment or delivery; and (iii) confirming a sample of outstanding customer invoice balances as of December 31, 2025 and, for confirmations not returned, obtaining and inspecting source documents, such as purchase orders, invoices, proof of shipment or delivery, and subsequent cash receipts.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

February 24, 2026

We have served as the Company’s auditor since 1981.

MKS INC.

Consolidated Balance Sheets

(in millions, except per share data)


	December 31,
	2025			2024
ASSETS
Current assets:
Cash and cash equivalents	$	675		$	714
Trade accounts receivable, net of allowance for doubtful accounts of $5 at both December 31, 2025 and 2024		651			615
Inventories		921			893
Other current assets		263			252
Total current assets		2,510			2,474

Property, plant and equipment, net		810			771
Right-of-use assets		270			238
Goodwill		2,574			2,479
Intangible assets, net		2,140			2,272
Other assets		492			356
Total assets	$	8,796		$	8,590

LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Short-term debt	$	51		$	50
Accounts payable		407			341
Other current liabilities		469			384
Total current liabilities		927			775

Long-term debt, net		4,150			4,488
Non-current deferred taxes		474			504
Non-current accrued compensation		149			141
Non-current lease liabilities		246			211
Other non-current liabilities		131			149
Total liabilities		6,077			6,268
Commitments and contingencies (Note 22)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2 shares authorized; no shares issued and outstanding		—			—
Common stock, no par value, 200 shares authorized; 67.2 and 67.4 shares issued and outstanding at December 31, 2025 and 2024, respectively		—			—
Additional paid-in capital		2,101			2,067
Retained earnings		711			503
Accumulated other comprehensive loss		(93	)		(248	)
Total stockholders’ equity		2,719			2,322
Total liabilities and stockholders' equity	$	8,796		$	8,590

The accompanying notes are an integral part of the Consolidated Financial Statements.

MKS INC.

Consolidated Statements of Operations and Comprehensive Income (Loss)

(in millions, except per share data)


	Years Ended December 31,
	2025		2024		2023
Net revenues:
Products	$	3,436	$	3,124	$	3,200
Services		495		462		422
Total net revenues		3,931		3,586		3,622
Cost of revenues:
Products		1,859		1,662		1,748
Services		235		216		232
Total cost of revenues (exclusive of amortization shown separately below)		2,094		1,878		1,980
Gross profit		1,837		1,708		1,642
Research and development		299		271		288
Selling, general and administrative		724		674		675
Acquisition and integration costs		—		9		16
Restructuring and other		37		6		20
Fees and expenses related to amendments to the Term Loan Facility		2		5		2
Amortization of intangible assets		247		245		295
Goodwill and intangible asset impairments		—		—		1,902
Gain on sale of long-lived assets		—		—		(2	)
Income (loss) from operations		528		498		(1,554	)
Interest income		(14

Item 1. Business

We have developed the following two product strategies that have been instrumental in delivering value to our customers and helping them solve their most complex problems:

PART II

Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Common Stock

Dividend Policy and Cash Dividends

Share Repurchase Program

Comparative Stock Performance

Item 6. Reserved

Overview

Current Trade Environment

Segments

Critical Accounting Policies and Estimates

Year Ended December 31, 2025 compared to 2024

Market Risk and Sensitivity Analysis

Foreign Exchange Rate Risk

Interest Rate Risk

Equity Price Risk

MKS INC 10-K