Dorman Products (DORM) director awarded 1,344 restricted stock units

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

RILEY RICHARD T reported acquisition or exercise transactions in this Form 4 filing.

Dorman Products, Inc. director Richard T. Riley reported receiving a grant of 1,344 shares of common stock as restricted stock units valued at $122.71 per share. This is a compensation-related award, not an open-market purchase or sale. Following the grant, he directly holds 30,312 shares. The restricted stock units will vest in full on the earlier of the first anniversary of the grant date or the date of the company’s next annual meeting of shareholders.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider RILEY RICHARD T

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,344	$122.71	$165K

Holdings After Transaction: Common Stock — 30,312 shares (Direct, null)

Footnotes (1)

[object Object]

Key Figures

RSU grant size: 1,344 shares Grant value per share: $122.71 per share Post-transaction holdings: 30,312 shares

3 metrics

RSU grant size 1,344 shares Restricted stock units granted to director on transaction date

Grant value per share $122.71 per share Value used for the restricted stock unit grant

Post-transaction holdings 30,312 shares Total common shares directly held after the grant

Key Terms

restricted stock units, contingent right, annual meeting of shareholders

3 terms

restricted stock units financial

"Grant of restricted stock units representing a contingent right to receive shares"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"representing a contingent right to receive shares of Dorman common stock"

annual meeting of shareholders financial

"the date of the Company's next annual meeting of shareholders"

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

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Form 4 Insider Transactions: What Each Field Means →

06/03/2026 - 05:20 PM

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^*

RILEY RICHARD T

(Last)

(First)

(Middle)

C/O DORMAN PRODUCTS, INC.

3400 E. WALNUT ST.

(Street)

COLMAR

PENNSYLVANIA

18915

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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)
06/01/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/01/2026		A		1,344⁽¹⁾	A	$122.71	30,312	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 full on the earlier of the first anniversary of the date of grant or the date of the Company's next annual meeting of shareholders.

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	06/03/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Richard T. Riley report for DORM?

Richard T. Riley reported an award of 1,344 restricted stock units of Dorman Products common stock. The grant reflects compensation, not an open-market trade, and increases his direct holdings to 30,312 shares following the transaction.

Was the DORM Form 4 transaction a stock purchase or sale?

The transaction was neither a market purchase nor a sale. It was an acquisition coded "A" on Form 4, representing a grant of restricted stock units awarded as compensation rather than a voluntary buy or sell in the open market.

How many Dorman Products shares does Richard T. Riley hold after this grant?

After the restricted stock unit grant, Richard T. Riley’s direct holdings total 30,312 shares of Dorman Products common stock. This figure includes the newly awarded 1,344-share grant reported in the Form 4 insider transaction filing.

At what value was Richard T. Riley’s DORM stock grant recorded?

The grant of 1,344 restricted stock units was recorded at $122.71 per share. This price reflects the grant value used in the Form 4 disclosure and is not described as an open-market purchase price in the filing.

When will Richard T. Riley’s Dorman restricted stock units vest?

The restricted stock units will vest in full on the earlier of the first anniversary of the grant date or the date of Dorman Products’ next annual meeting of shareholders, according to the footnote describing the contingent vesting terms.