Dorman CEO exercises options for 16,446 shares

Dorman Products’ president and CEO exercised stock options for common shares, with a portion of the stock withheld to cover exercise costs and taxes.

Rhea-AI Filing Summary

Dorman Products, Inc. (DORM) reported that its president and CEO, Kevin M. Olsen, who is also a director, exercised stock options on September 9, 2026 to acquire common shares. He exercised options for 4,749 shares at $82.03 per share and 11,697 shares at $61.68 per share, receiving the same number of common shares. A total of 11,923 common shares were withheld to cover the exercise price and withholding tax obligations related to these option exercises. No transactions were reported as made under a Rule 10b5-1 trading plan.

Insider Trade Summary

16,446 shares exercised/converted

Exercise 5 txns

Insider Olsen Kevin M.

Role President and CEO

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option (right to buy) F2	4,749	$0.00	$0.00
Exercise	Employee Stock Option (right to buy) F3	11,697	$0.00	$0.00
Exercise	Common Stock	4,749	$82.03	$390K
Exercise	Common Stock	11,697	$61.68	$721K
Exercise Price or Tax Liability	Common Stock F1	11,923	$126.60	$1.51M

Holdings After Transaction: Employee Stock Option (right to buy) — 0 contracts (Direct); Common Stock — 103,770.2208 shares (Direct)

Footnotes (3)

1. F1. Represents shares withheld to cover the exercise price and withholding tax obligations of the options exercised.
2. F2. The option vested in four equal annual installments beginning on March 6, 2020, which was the first anniversary of the date of grant.
3. F3. The option vested in four equal annual installments beginning on March 2, 2021, which was the first anniversary of the date of grant.

Key Figures

Options exercised at $82.03: 4,749 shares Options exercised at $61.68: 11,697 shares Total shares underlying options exercised: 16,446 shares +3 more

6 metrics

Options exercised at $82.03 4,749 shares Common shares acquired by option exercise on September 9, 2026 at $82.03 per share

Options exercised at $61.68 11,697 shares Common shares acquired by option exercise on September 9, 2026 at $61.68 per share

Total shares underlying options exercised 16,446 shares Sum of option exercises reported for September 9, 2026

Shares withheld for exercise price and taxes 11,923 shares Common shares withheld to cover exercise price and withholding tax obligations

Exercise price per share $82.03 per share Exercise price for one option grant converting into common stock

Exercise price per share $61.68 per share Exercise price for another option grant converting into common stock

Key Terms

beneficial owner, withholding tax obligations, Employee Stock Option, Section 16 of the Securities Exchange Act of 1934

4 terms

beneficial owner regulatory

"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"

A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.

withholding tax obligations financial

"Represents shares withheld to cover the exercise price and withholding tax obligations of the options exercised"

Employee Stock Option financial

"Employee Stock Option (right to buy)"

An employee stock option is a promise that lets a worker buy company shares later at a predetermined price, often after they stay for a certain period or meet performance goals — think of it like a coupon that locks in today's price for a future purchase. It matters to investors because options align employees’ incentives with company performance, can increase the number of shares outstanding (dilution) when exercised, and represent a compensation cost that affects reported profits and shareholder value.

Section 16 of the Securities Exchange Act of 1934 regulatory

"for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the beneficial owner of any securities"

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 did Dorman Products (DORM) disclose about Kevin M. Olsen’s September 2026 transactions?

Dorman Products disclosed that president and CEO Kevin M. Olsen exercised stock options on September 9, 2026, acquiring common shares and having some shares withheld to cover the option exercise price and related tax obligations.

How many DORM stock options did Kevin M. Olsen exercise in this Form 4?

Kevin M. Olsen exercised options covering 4,749 shares at $82.03 per share and 11,697 shares at $61.68 per share of Dorman Products common stock, for a total of 16,446 shares underlying the exercised options.

How many DORM shares were withheld for exercise price and taxes?

A total of 11,923 common shares of Dorman Products were withheld to cover the exercise price and withholding tax obligations associated with the option exercises reported for September 9, 2026.

Were Kevin M. Olsen’s DORM transactions under a Rule 10b5-1 trading plan?

No. The filing indicates that no Rule 10b5-1 trading plan was reported in connection with the stock option exercises and related share withholdings disclosed for September 9, 2026.

What vesting schedules applied to the exercised DORM stock options?

One option grant vested in four equal annual installments beginning March 6, 2020, and another vested in four equal annual installments beginning March 2, 2021, each starting on the first anniversary of its grant date.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/11/2026 - 04:14 PM Accepted by SEC EDGAR 09/11/2026 - 04:13 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^*

Olsen Kevin M.

(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
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026

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	09/09/2026		M		4,749	A	$82.03	103,996.2208	D
Common Stock	09/09/2026		M		11,697	A	$61.68	115,693.2208	D
Common Stock	09/09/2026		F		11,923(1)	D	$126.6	103,770.2208	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)	$82.03	09/09/2026		M			4,749	(2)	03/06/2027	Common Stock	4,749	$0	0	D
Employee Stock Option (right to buy)	$61.68	09/09/2026		M			11,697	(3)	03/02/2028	Common Stock	11,697	$0	0	D

Explanation of Responses:

1. Represents shares withheld to cover the exercise price and withholding tax obligations of the options exercised.

2. The option vested in four equal annual installments beginning on March 6, 2020, which was the first anniversary of the date of grant.

3. The option vested in four equal annual installments beginning on March 2, 2021, 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/ Joseph P. Braun, by Power of Attorney	09/11/2026
	** 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)