ON Semiconductor (NASDAQ: ON) Power Solutions Group president to resign in 2026

Rhea-AI Filing Summary

ON Semiconductor Corporation reported that Simon Keeton, Group President of its Power Solutions Group, will resign from all employment positions effective June 30, 2026. He will step down from all officer roles immediately but remain with the company until that date to support an orderly leadership transition.

Keeton joined onsemi in July 2007 and has served as Group President, Power Solutions Group since February 2024. The company plans to transition to a new head of the Power Solutions Group during this period.

Insights

Corporate governance analyst

Mid-level senior leadership change with planned transition, limited near-term clarity on successor.

The resignation of Simon Keeton as Group President, Power Solutions Group, removes a long-tenured leader who has been with onsemi since July 2007. However, his agreement to remain through June 30, 2026 is designed to keep operations stable during the handover.

The filing notes he stepped down from officer positions immediately, which concentrates formal authority elsewhere while he remains to assist transition. Future disclosures may identify the new head of the Power Solutions Group and clarify any strategic shifts tied to this leadership change.

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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

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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

(b) On March 9, 2026, ON Semiconductor Corporation (together with its affiliates, “onsemi”) and Simon Keeton, Group President, Power Solutions Group of onsemi, agreed that Mr. Keeton will resign from all employment positions at onsemi effective June 30, 2026. Although Mr. Keeton will step down from all officer positions immediately, he has agreed to remain with onsemi through June 30, 2026 in order to support an orderly transition to a new head of the Power Solutions Group.  Mr. Keeton joined onsemi in July 2007 and has held the position of Group President, Power Solutions Group since February 2024.

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: March 11, 2026	By:	/s/ Paul Dutton
		Paul Dutton
		Senior Vice President, Chief Legal Officer and Secretary

FAQ

What leadership change did ON (onsemi) disclose in this 8-K filing?

ON Semiconductor disclosed that Simon Keeton will resign from all employment positions effective June 30, 2026. He has stepped down from all officer roles immediately but will stay on to assist an orderly transition to a new head of the Power Solutions Group.

When will Simon Keeton’s resignation from onsemi become fully effective?

Simon Keeton’s resignation from all employment positions at onsemi becomes fully effective on June 30, 2026. Until that date, he will remain with the company to support an orderly transition to a new leader for the Power Solutions Group.

What is Simon Keeton’s current role at ON (onsemi) and what is changing?

Simon Keeton has served as Group President, Power Solutions Group at onsemi since February 2024. Under this change, he steps down from all officer positions immediately and will fully resign from all employment positions effective June 30, 2026 after helping with transition.

How long has Simon Keeton been with ON Semiconductor Corporation?

Simon Keeton joined ON Semiconductor Corporation in July 2007. Over nearly two decades, he advanced to become Group President of the Power Solutions Group, a role he has held since February 2024, before now agreeing to resign with a structured transition period.

Will Simon Keeton remain at ON (onsemi) during the transition period?

Yes. Although Simon Keeton is stepping down immediately from all officer positions, he has agreed to remain with onsemi through June 30, 2026. During this period, he will support an orderly transition to a new head of the Power Solutions Group.

Does ON’s filing identify a successor for the Power Solutions Group leadership?

The filing refers to a transition to a new head of the Power Solutions Group but does not name a successor. It emphasizes that Simon Keeton will stay until June 30, 2026 to support an orderly leadership transition within the Power Solutions Group.

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 21.5 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 15.7 KB