UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~WASHINGTON~~Washington, ~~D.C.~~DC ~~20579~~20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(dD) OF ~~THE SECURITIES EXCHANGE ACT OF 1934~~

~~Date~~THE ofSECURITIES ~~Report:~~EXCHANGE ~~October~~ACT ~~29,~~OF ~~2025~~ 1934

Date of report (Date of earliest event reported): January 7, 2026

LITTELFUSE, INC.

(Exact ~~name~~Name of ~~registrant~~Registrant as ~~specified~~Specified in ~~its charter~~Charter)

Delaware	0-20388	36-3795742	~~0-20388~~	~~36-3795742~~
(State of other jurisdiction of incorporation)			(Commission File Number)	(IRS Employer Identification No.)
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

6133 ~~North~~N. River ~~Road, Suite 500, Rosemont, IL 60018~~ Rd.

~~(Address~~Suite ~~of principal executive offices) (Zip Code)~~500

~~Registrant’s telephone number~~Rosemont, ~~including~~IL ~~area code: (773) 628-1000~~ 60018

(Address of Principal Executive Offices, and Zip Code)

(773) 628-1000

Registrant’s Telephone Number, Including Area Code

N/A

(Former name, former address and former fiscal year, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement ~~communications~~communication pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement ~~communications~~communication pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of Each Class

Trading Symbol

Name of exchange on which registered

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, par value $0.01 per share

LFUS

NASDAQ Global Select Market

~~LFUS~~

~~NASDAQ Global Select Market~~

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2 of this chapter).

Emerging growth 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. ☐

Item 25.02. ~~Results~~Departure of ~~Operations~~Directors ~~and~~or ~~Financial~~Certain ~~Condition~~Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

~~The~~On ~~information~~January ~~contained~~7, ~~within~~2026, ~~Item~~Littelfuse, 2Inc.02 of(the ~~this~~“Company”) ~~Form 8-K~~ and ~~the~~Ryan ~~Exhibits~~K. ~~attached~~Stafford, ~~hereto~~Executive ~~shall~~Vice ~~not~~President, beMergers ~~deemed~~& toAcquisitions, beChief ~~"filed"~~Legal ~~for~~Officer ~~purposes~~and Corporate ofSecretary ~~Section 18~~ of the ~~Securities Exchange Act of 1934~~Company, asagreed ~~amended,~~to ~~and~~Mr. ~~shall~~Stafford’s ~~not~~separation befrom ~~deemed~~employment ~~incorporated~~with ~~by reference into any filing under~~ the ~~Securities~~Company, ~~Act~~effective ofApril ~~1933~~30, as2026 ~~amended,~~(the ~~except~~“Separation ~~as shall be expressly set forth by specific reference in such filing~~Date”).

OnThe ~~October 29,~~terms ~~2025,~~of ~~Littelfuse, Inc~~Mr. (Stafford’s separation from the “Company”) ~~issued~~have been memorialized in a ~~press~~Letter ~~release~~Agreement, dated ~~announcing~~January 7, 2026 (the ~~results~~“Letter ofAgreement”). ~~its~~Pursuant ~~operations~~to ~~for~~the Letter Agreement, the ~~quarter~~Company ~~ended~~has ~~September 27~~agreed, ~~2025~~subject to Mr. AStafford’s ~~copy~~execution and non-revocation of ~~the~~a ~~press~~Separation ~~release~~and isRelease ~~attached~~Agreement (as ~~Exhibit~~described 99below), to provide Mr. Stafford with certain severance benefits including: (1) a lump sum cash payment pursuant to ~~this~~the ~~Form~~Company’s ~~8-K~~Executive ~~and~~Severance ~~incorporated~~Policy bypayable ~~reference~~on toor ~~this~~before ~~Item~~the 60th day following the Separation Date; (2~~.02~~) asaccelerated ifvesting ~~fully~~of ~~set~~50% ~~forth~~of ~~herein~~the restricted stock units granted to Mr. AStafford ~~copy~~on ofJanuary 23, 2025; (3) a prorated cash bonus under the ~~press~~Company’s ~~release~~Annual ~~will~~Incentive ~~also~~Plan for 2026 to be ~~available~~determined onin accordance with the Letter Agreement and the Company’s ~~website~~Executive Severance Policy; and (4) continuation or reimbursement of certain welfare benefits and fringe benefits for limited transitional periods following termination.

~~Item~~The 7foregoing is only a summary of the Letter Agreement and is qualified in its entirety by the full text of the Letter Agreement attached hereto as Exhibit 10.011 ~~Regulation~~and FDincorporated ~~Disclosure~~herein by reference.

ToIn ~~supplement~~connection ~~the~~with ~~information in~~ the ~~attached~~Letter ~~press release~~Agreement, the Company ~~has~~and ~~also~~Mr. ~~prepared~~Stafford ~~a presentation, which~~ will beenter ~~available~~into ona ~~the~~Separation ~~Company’s~~and ~~website~~Release Agreement at ~~https://investor.littelfuse.com/events-and-presentations~~the ~~and~~time isof ~~attached~~his ~~hereto~~termination asof employment, ~~Exhibit~~containing ~~99.2~~customary toterms ~~this~~including ~~Current~~confidentiality, ~~Report~~release onof ~~Form~~claims, 8and non-K.disparagement provisions.

The information contained in the press release and investor presentation attached to this Form 8-K includes forward-looking statements that are intended to be covered by the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include but are not limited to comments with respect to the objectives and strategies, financial condition, results of operations and business of the Company. These forward-looking statements involve numerous assumptions, inherent risks and uncertainties, both general and specific, and the risk that predictions and other forward-looking statements will not be achieved. The Company cautions you not to place undue reliance on these forward-looking statements as a number of important factors could cause actual future results to differ materially from the plans, objectives, expectations, estimates and intentions expressed in such forward-looking statements.

A copy of the press release is also posted on the Company's website.

Item 9.01

Financial Statements and Exhibits.

(d)			Exhibits
			The following exhibits are furnished with this Form 8-K:
			99.1 Press Release dated October 29, 2025
			99.2 Littelfuse Presentation dated October 29, 2025
			104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

(d)

Exhibits

Signature

Exhibit Number		Description

10.1		Letter Agreement between Littelfuse, Inc. and Ryan K. Stafford, dated January 7, 2026.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

~~Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.~~SIGNATURE

			Littelfuse, Inc.
Date: October 29, 2025			By: /s/ Abhishek Khandelwal
			Abhishek KhandelwalExecutive Vice President and Chief Financial Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: January 8, 2026	LITTELFUSE, INC.

	By:	/s/ Abhishek Khandelwal
	Name:	Abhishek Khandelwal
	Title:	Executive Vice President, Chief Financial Officer

Filing Compare · LITTELFUSE INC /DE