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

Rhea-AI Filing Summary

Dorman Products insider sale: Donna M. Long, SVP and Chief Information Officer, reported the sale of 1,213 shares of Dorman Products, Inc. (DORM) on 08/12/2025 at a reported price of $150 per share. After this transaction she is shown as beneficially owning 17,860.8738 shares in a direct form. The Form 4 was signed by a power of attorney on 08/14/2025.

Insights

Securities Analyst

TL;DR: A routine insider sale by an officer; transaction size appears modest relative to typical company-wide holdings.

The Form 4 documents a single open-market sale of 1,213 shares at $150 on 08/12/2025 by Donna M. Long, SVP and CIO. The filing lists 17,860.8738 shares beneficially owned following the sale and indicates direct ownership. No derivative transactions or plan details beyond a Rule 10b5-1 indication box are provided. This disclosure is standard for Section 16 reporting and contains no additional company operational or financial data.

Corporate Governance Expert

TL;DR: Compliance filing showing required insider sale notice; documentation and signature via POA are properly presented.

The report identifies the reporter as an officer (SVP, CIO) and marks the Form 4 as filed by one reporting person. The signature is executed by a power of attorney on 08/14/2025. The form flags that the transaction was made pursuant to a written plan to satisfy Rule 10b5-1(c) conditions. No governance issues, amendments, or unusual disclosures appear in the text provided.

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).

X

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^*

Long Donna M.

(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)
	SVP, CIO

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2025

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	08/12/2025		S		1,213	D	$150	17,860.8738	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:

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 equity 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	08/14/2025
	** 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

What transaction did Donna M. Long report on Form 4 for DORM?

She reported the sale of 1,213 shares of Dorman Products on 08/12/2025 at a price of $150 per share.

What was Donna M. Long's beneficial ownership after the reported sale?

The Form 4 shows 17,860.8738 shares beneficially owned following the transaction, held in a direct ownership form.

What is Donna M. Long's role at Dorman Products as listed on the filing?

The filing lists her as an Officer with the title SVP, CIO.

Was the Form 4 signed and when?

Yes; the signature on the filing was executed by Frank J. Mahr, by Power of Attorney on 08/14/2025.

Does the filing indicate the transaction was part of a 10b5-1 plan?

The form includes a checked box indicating the transaction was made pursuant to a Rule 10b5-1(c) written plan.