ON Semiconductor director receives stock award

Deitrich Thomas reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Deitrich Thomas reported acquisition or exercise transactions in this Form 4 filing.

ON Semiconductor director Thomas Deitrich received a grant of 1,986 shares of common stock as restricted stock. The award was granted on May 14, 2026 under the company’s Amended and Restated Stock Incentive Plan at no cash cost to him. After this grant, he directly holds 26,060 common shares. The restricted stock will vest on the day prior to ON Semiconductor’s next Annual Meeting of Stockholders, aligning the director’s compensation with shareholder interests over that period.

Insider Trade Summary

Grant/Award: 1,986 shares

Grant/Award 1 txn

Insider Deitrich Thomas

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common	1,986	$0.00	$0.00

Holdings After Transaction: Common — 26,060 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock granted under the Issuer's Amended and Restated Stock Incentive Plan on May 14, 2026. The stock will vest on the day prior to the Issuer's next Annual Meeting of Stockholders.

Key Figures

Restricted stock granted: 1,986 shares Grant price: $0.0000 per share Shares held after grant: 26,060 shares +1 more

4 metrics

Restricted stock granted 1,986 shares Grant of common stock on May 14, 2026

Grant price $0.0000 per share Transaction price for restricted stock award

Shares held after grant 26,060 shares Total direct common shares after transaction

Transaction code A Grant, award, or other acquisition of common stock

Key Terms

restricted stock, Amended and Restated Stock Incentive Plan, Annual Meeting of Stockholders, Grant, award, or other acquisition

4 terms

restricted stock financial

"Represents restricted stock granted under the Issuer's Amended and Restated Stock Incentive Plan"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Amended and Restated Stock Incentive Plan financial

"granted under the Issuer's Amended and Restated Stock Incentive Plan on May 14, 2026"

Annual Meeting of Stockholders regulatory

"The stock will vest on the day prior to the Issuer's next Annual Meeting of Stockholders"

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ON (ON SEMICONDUCTOR CORP) report for Thomas Deitrich?

ON Semiconductor reported that director Thomas Deitrich received a grant of 1,986 shares of restricted common stock. The grant was classified as a “Grant, award, or other acquisition” and carried a price of $0.0000 per share.

When will Thomas Deitrich’s newly granted ON restricted stock vest?

The 1,986 restricted shares granted to Thomas Deitrich will vest on the day prior to ON Semiconductor’s next Annual Meeting of Stockholders. Vesting timing is tied directly to that meeting date, rather than a fixed calendar schedule.

How many ON shares does Thomas Deitrich hold after this Form 4 transaction?

Following the grant of 1,986 restricted shares, Thomas Deitrich directly holds a total of 26,060 shares of ON Semiconductor common stock. This figure reflects his position immediately after the reported award.

What type of security was granted to Thomas Deitrich by ON Semiconductor?

ON Semiconductor granted Thomas Deitrich restricted shares of its common stock. The filing describes the transaction as common stock awarded under the company’s Amended and Restated Stock Incentive Plan with a transaction code of “A.”

Under which plan was Thomas Deitrich’s ON restricted stock granted?

The restricted stock awarded to Thomas Deitrich was granted under ON Semiconductor’s Amended and Restated Stock Incentive Plan. This plan governs equity-based compensation, including restricted stock grants to directors and other eligible participants.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 04:54 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Deitrich Thomas

(Last) (First) (Middle)

5701 NORTH PIMA ROAD

(Street)

SCOTTSDALE ARIZONA 85250

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ON SEMICONDUCTOR CORP [ ON ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common	05/14/2026		A		1,986(1)	A	$0.0000	26,060	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents restricted stock granted under the Issuer's Amended and Restated Stock Incentive Plan on May 14, 2026. The stock will vest on the day prior to the Issuer's next Annual Meeting of Stockholders.

Remarks:

Hope M. Spencer is signing on behalf of the Reporting Person pursuant to a Power of Attorney attached hereto as Exhibit 24.

	/s/ Hope M. Spencer, Attorney-in-Fact	05/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)