UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

~~February~~March 9, 2026

Date of Report (Date of earliest event reported)

ON Semiconductor Corporation

(Exact name of registrant as specified in its charter)

Delaware	001-39317	36-3840979
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

ON Semiconductor Corporation 5701 N. Pima Road Scottsdale, Arizona		85250
(Address of principal executive offices)		(Zip Code)

(602) 244-6600

(Registrant’s telephone number, including area code)

(Former name or former address, 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 pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications 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(s)		Name of each exchange on which registered
Common Stock, par value $0.01 per share		ON		The Nasdaq Stock Market LLC

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) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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 ~~Operation~~Directors ~~and~~or ~~Financial~~Certain ~~Condition.~~Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

(b) On ~~February~~March 9, 2026, ON Semiconductor Corporation ~~announced~~(together inwith aits ~~news~~affiliates, “onsemi”) and Simon Keeton, Group President, Power Solutions Group of onsemi, agreed that Mr. Keeton will resign from all employment positions at onsemi ~~release~~ effective ~~its~~June ~~financial~~30, ~~performance~~2026. ~~for~~Although ~~the~~Mr. ~~fourth~~Keeton ~~quarter~~will ~~and~~step ~~year~~down ~~ended~~from ~~December~~all 31officer positions immediately, ~~2025 and~~he ~~other~~has ~~related~~agreed ~~material~~to ~~information~~remain ~~(the~~with ~~“Earnings~~onsemi ~~Release”). A~~through ~~copy~~June 30, 2026 in order to support an orderly transition to a new head of the ~~Earnings~~Power ~~Release~~Solutions isGroup. Mr. ~~attached~~Keeton ~~hereto~~joined asonsemi ~~Exhibit~~in ~~99.1~~July 2007 and ~~incorporated~~has ~~herein~~held bythe ~~reference~~position of Group President, Power Solutions Group since February 2024.

The information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, is being furnished under Item 2.02 and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to liability under that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

The below exhibit is furnished as part of this Current Report on Form 8-K.

Exhibit No.	Description
99.1	News release for ON Semiconductor Corporation, dated February 9, 2026, announcing financial performance for the fourth quarter and year ended December 31, 2025
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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 hereunto duly authorized.

		ON SEMICONDUCTOR CORPORATION (Registrant)
Date: February 9, 2026	By:	/s/ Thad Trent
Date: March 11, 2026	By:	/s/ Paul Dutton
		Thad Trent Executive Vice President and Chief Financial Officer
		Paul Dutton
		Senior Vice President, Chief Legal Officer and Secretary

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