Dorman director reports small tax share disposition

Dorman Products, Inc. director Thomas James Darrell reported a small tax-related share disposition.

Rhea-AI Filing Summary

Dorman Products, Inc. director Thomas James Darrell reported a small tax-related share disposition. On the vesting of restricted stock units, 33 shares of common stock were withheld by the company at $116.16 per share to cover his tax obligations, which is classified as a disposition under securities rules. After this withholding, he directly holds 6,574 shares of Dorman common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 33 shares

Exercise Price or Tax Liability 1 txn

Insider Thomas James Darrell

Role Director

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	33	$116.16	$4K

Holdings After Transaction: Common Stock — 6,574 shares (Direct)

Footnotes (1)

1. F1. These shares were withheld by the Issuer upon the vesting of restricted stock units to satisfy the Reporting Person's tax withholding obligations. Such withholding is treated as a disposition of securities under Section 16 of the Securities Exchange Act of 1934, as amended.

Key Figures

Shares withheld for tax: 33 shares Per-share value: $116.16 per share Shares held after transaction: 6,574 shares +2 more

5 metrics

Shares withheld for tax 33 shares Tax-withholding disposition on RSU vesting

Per-share value $116.16 per share Value used for withheld shares

Shares held after transaction 6,574 shares Direct holdings after withholding

Transaction code F Payment of tax liability by delivering securities

Tax-withholding transactions 1 transaction, 33 shares Summary in filing’s transaction data

Key Terms

restricted stock units, tax withholding obligations, disposition of securities, Section 16 of the Securities Exchange Act of 1934

4 terms

restricted stock units financial

"upon the vesting of restricted stock units to satisfy the Reporting Person's tax withholding obligations"

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.

tax withholding obligations financial

"to satisfy the Reporting Person's tax withholding obligations"

disposition of securities regulatory

"Such withholding is treated as a disposition of securities under Section 16"

Section 16 of the Securities Exchange Act of 1934 regulatory

"under Section 16 of the Securities Exchange Act of 1934, as amended"

A provision of federal securities law that requires company insiders—directors, officers and large shareholders—to publicly report their stock holdings and trades and to surrender any “short-swing” profits from purchases and sales within a six-month window. It acts like a rule that forces leaders to announce their trades and prevents quick buy-sell windfalls, giving investors transparency into insider activity and reducing opportunities for unfair gain.

FAQ

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

What insider transaction did Dorman Products (DORM) director Thomas James Darrell report?

Director Thomas James Darrell reported a small tax-related share disposition. The company withheld 33 common shares when his restricted stock units vested to satisfy tax obligations, a routine non-market event classified as a disposition under Section 16 rules.

Was the Dorman Products (DORM) Form 4 transaction an open-market sale?

No, the Form 4 transaction was not an open-market sale. The 33 Dorman common shares were withheld by the company to cover Thomas James Darrell’s tax withholding obligations upon RSU vesting, rather than being sold on the open market for cash proceeds.

How many Dorman Products (DORM) shares were involved in the tax withholding?

The filing shows that 33 shares of Dorman common stock were withheld. They were valued at $116.16 per share for this purpose, reflecting shares delivered back to the issuer to satisfy the director’s tax liability on vesting restricted stock units.

How many Dorman Products (DORM) shares does Thomas James Darrell own after this Form 4?

After the tax-related withholding, Thomas James Darrell directly holds 6,574 Dorman common shares. This post-transaction balance in the Form 4 indicates that the 33 withheld shares represent only a small portion of his overall direct equity position in the company.

What does transaction code F mean in the Dorman Products (DORM) Form 4?

Transaction code F in this Form 4 signifies a tax-withholding disposition. It reflects that shares were surrendered to Dorman Products to pay the director’s tax liability from restricted stock unit vesting, rather than representing a discretionary buy or sell in the open market.

At what price were the withheld Dorman Products (DORM) shares valued in this filing?

The 33 withheld Dorman common shares were valued at $116.16 per share. This price is used in the Form 4 to quantify the tax-withholding disposition associated with the vesting of restricted stock units for director Thomas James Darrell.

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

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Accepted by SEC EDGAR 05/19/2026 - 04:02 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^*

Thomas James Darrell

(Last) (First) (Middle)

C/O DORMAN PRODUCTS, INC.

3400 EAST WALNUT STREET

(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)
05/15/2026

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 Stock	05/15/2026		F		33(1)	D	$116.16	6,574	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. These shares were withheld by the Issuer upon the vesting of restricted stock units to satisfy the Reporting Person's tax withholding obligations. Such withholding is treated as a disposition of securities under Section 16 of the Securities Exchange Act of 1934, as amended.

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	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)