Dorman SVP granted 3,666 stock units at $115.93

Porter Nathan J reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Porter Nathan J reported acquisition or exercise transactions in this Form 4 filing.

Dorman Products, Inc. reported that its Senior Vice President and Chief Operations Officer, Nathan J. Porter, received a grant of 3,666 shares of common stock in the form of restricted stock units at a reference price of $115.93 per share. These units will vest in three equal annual installments beginning on March 2, 2027, the first anniversary of the grant date, meaning the award is fully earned over three years.

Insider Trade Summary

Grant/Award: 3,666 shares

Grant/Award 1 txn

Insider Porter Nathan J

Role SVP, Chief Operations Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,666	$115.93	$425K

Holdings After Transaction: Common Stock — 3,666 shares (Direct)

Footnotes (1)

1. F1. Grant of restricted stock units representing a contingent right to receive shares of Dorman common stock. The restricted stock units will vest in three equal annual installments beginning on March 2, 2027, which is the first anniversary of the date of grant.

FAQ

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

What insider transaction did Dorman Products (DORM) report for Nathan J. Porter?

Dorman Products reported that Nathan J. Porter received a grant of 3,666 restricted stock units. The units represent a contingent right to receive common shares, structured as part of his equity compensation, and will vest over time based on a defined three-year schedule.

How many shares were granted to the Dorman Products (DORM) SVP and at what price?

Nathan J. Porter was granted 3,666 restricted stock units tied to Dorman common stock at a reference price of $115.93 per share. This price reflects the grant valuation for the award rather than a cash purchase on the open market.

What is the vesting schedule for Nathan J. Porter’s Dorman (DORM) restricted stock units?

The 3,666 restricted stock units will vest in three equal annual installments starting March 2, 2027. That date is the first anniversary of the grant, so the award becomes fully vested over a three-year period if the vesting conditions are satisfied.

Does the Dorman Products (DORM) Form 4 reflect a stock purchase or an award?

The Form 4 reflects a grant of restricted stock units, not an open-market stock purchase. It is classified as an acquisition under code A, described as a grant, award, or other acquisition, providing a contingent right to receive common shares in the future.

How many Dorman Products (DORM) shares does Nathan J. Porter hold after this transaction?

Following this equity grant, Nathan J. Porter is reported as holding 3,666 shares related to this award. These are represented by restricted stock units that will convert into Dorman common stock as they vest over the three-year vesting period.

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

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Accepted by SEC EDGAR 03/04/2026 - 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^*

Porter Nathan J

(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, Chief Operations Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

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	03/02/2026		A		3,666(1)	A	$115.93	3,666	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. Grant of restricted stock units representing a contingent right to receive shares of Dorman common stock. The restricted stock units will vest in three equal annual installments beginning on March 2, 2027, which is 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	03/04/2026
	** 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.