[Form 4] Dorman Products, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Gregory C. Bowen, Vice President and Chief Accounting Officer of Dorman Products, Inc. (DORM), reported paired option exercise and stock sale transactions on 09/12/2025. The filing shows an employee stock option with an exercise price of $101.45 was exercised for 1,453 shares (transaction code M) and 1,453 shares were sold (transaction code S) at $162.808. After these transactions the report lists 4,658.9296 shares beneficially owned directly by Mr. Bowen. The option schedule notes the award vested in four equal annual installments beginning March 2, 2022. The Form 4 is signed by Frank J. Mahr by power of attorney on 09/15/2025.

Insights

Corporate Governance Expert

TL;DR: Routine insider option exercise and sale by a senior officer, disclosed via Form 4; no new corporate governance issues apparent.

The filing documents standard Section 16 reporting for a VP and Chief Accounting Officer who exercised an employee option and concurrently sold an equal number of shares. The vesting schedule is disclosed as four equal annual installments beginning March 2, 2022, indicating the award is time‑based. Signature by power of attorney is noted, which is common for administrative filings. No indication of unusual timing or related‑party transactions is present in the disclosed text.

Securities Analyst

TL;DR: Insider exercised options at $101.45 and sold shares at $162.808 on 09/12/2025; transaction size is modest relative to typical market caps.

The report explicitly records an exercise of 1,453 option shares and a sale of 1,453 shares at the stated prices, leaving 4,658.9296 shares beneficially owned. The exercise price and sale price are provided, allowing clear disclosure of proceeds and cost basis for the reported shares. The filing contains no forward guidance or additional compensation changes.

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

1. Name and Address of Reporting Person^*

Bowen Gregory C.

(Last) (First) (Middle)

C/O DORMAN PRODUCTS, INC.

3400 EAST WALNUT STREET

(Street)

COLMAR PA 18915

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Dorman Products, Inc. [ DORM ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/12/2025

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

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

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

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 Stock	09/12/2025		M		1,453	A	$101.45	6,111.9296	D
Common Stock	09/12/2025		S		1,453	D	$162.808	4,658.9296	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
Employee Stock Option (right to buy)	$101.45	09/12/2025		M			1,453	(1)	03/02/2029	Common Stock	1,453	$101.45	0	D

Explanation of Responses:

1. The option vested in four equal annual installments beginning on March 2, 2022, which was the first anniversary of the date of grant.

Remarks:

The filing of this Statement shall not be construed as an admission (a) that the person filing this Statement is, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the beneficial owner of any securities covered by this Statement, or (b) that this Statement is legally required to be filed by such person.

	/s/ Frank J. Mahr, by Power of Attorney	09/15/2025
	** 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.

FAQ

Who filed this Form 4 for DORM and what is their role?

Gregory C. Bowen, Vice President and Chief Accounting Officer, is the reporting person.

What transactions were reported on 09/12/2025 for DORM?

An option exercise of 1,453 shares at $101.45 (code M) and a sale of 1,453 shares at $162.808 (code S) were reported.

How many DORM shares does the reporting person own after the transactions?

The Form 4 reports 4,658.9296 shares beneficially owned directly following the transactions.

What vesting information is disclosed about the option?

The option vested in four equal annual installments beginning on March 2, 2022.

Who signed the Form 4 and when?

The form is signed by Frank J. Mahr by power of attorney on 09/15/2025.