# EDGAR Filing Document

**Accession Number:** 0001544758
**File Stem:** 0001209191-23-016419
**Filing Date:** 2023-3
**Character Count:** 8205
**Document Hash:** 1e8e78b17e900b08cb63b90a099f4dbd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001209191-23-016419.hdr.sgml**: 20230306

**ACCESSION NUMBER**: 0001209191-23-016419

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230302

**FILED AS OF DATE**: 20230306

**DATE AS OF CHANGE**: 20230306

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** DARBY JEFFERY
- **CENTRAL INDEX KEY:** 0001544758

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-18914
- **FILM NUMBER:** 23710029

**MAIL ADDRESS:**
- **STREET 1:** C/O DORMAN PRODUCTS, INC.
- **STREET 2:** 3400 EAST WALNUT STREET
- **CITY:** COLMAR
- **STATE:** PA
- **ZIP:** 18915
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Dorman Products, Inc.
- **CENTRAL INDEX KEY:** 0000868780
- **STANDARD INDUSTRIAL CLASSIFICATION:** MOTOR VEHICLE PARTS & ACCESSORIES [3714]
- **IRS NUMBER:** 232078856
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 1228

**BUSINESS ADDRESS:**
- **STREET 1:** 3400 E WALNUT ST
- **CITY:** COLMAR
- **STATE:** PA
- **ZIP:** 18915
- **BUSINESS PHONE:** 2159971800

**MAIL ADDRESS:**
- **STREET 1:** 3400 E WALNUT ST
- **CITY:** COLMAR
- **STATE:** PA
- **ZIP:** 18915

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** R & B INC
- **DATE OF NAME CHANGE:** 19930328

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>DARBY JEFFERY<br><sub>(Last) (First) (Middle)</sub><br>C/O DORMAN PRODUCTS, INC.<br>3400 EAST WALNUT STREET<br><sub>(Street)</sub><br>COLMAR, PA 18915<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-03-02 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_SVP, Sales and Marketing_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Dorman Products, Inc. [ DORM ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-03-02 |  | F |  | 322<sup>(1)</sup> | D | $91.28 | 21830 | D |  |
| Common Stock | 2023-03-02 |  | A |  | 939<sup>(2)</sup> | A | $0.00 | 22769 | D |  |
| Common Stock | 2023-03-02 |  | A |  | 1095<sup>(3)</sup> | A | $0.00 | 23864 | D |  |
| Common Stock | 2023-03-03 |  | M |  | 943 | A | $72.55 | 24807 | D |  |
| Common Stock | 2023-03-03 |  | S |  | 726 | D | 91.0055<sup>(4)</sup> | 24081 | D |  |
| Common Stock | 2023-03-03 |  | S |  | 27 | D | $92.00 | 24054 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Employee Stock Option (right to buy) | $91.28 | 2023-03-02 |  | A |  | 2382 |  | <sup>(5)</sup> | 2031-03-02 | Common Stock | 2382 | $0.00 | 2382 | D |  |
| Employee Stock Option (right to buy) | $72.55 | 2023-03-03 |  | M |  |  | 943 | <sup>(6)</sup> | 2023-03-07 | Common Stock | 943 | $0.00 | 0 | D |  |

---

### Footnotes:

(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.

(2) Grant of restricted stock units representing a contingent right to receive shares of Dorman common stock. The restricted stock units will vest in four equal annual installments beginning on March 2, 2024, which is the first anniversary of the date of grant.

(3) 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 March 2, 2024, the first anniversary of the date of grant.

(4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.00 to $91.11. The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

(5) The option vests in four equal annual installments beginning on March 2, 2024, which is the first anniversary of the date of grant.

(6) The option, representing a right to purchase a total of 3,772 shares, vested in four equal annual installments beginning on March 7, 2019, 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 equity securities covered by this Statement, or (b) that this Statement is legally required to be filed by such person.

**Signature:** /s/ Frank J. Mahr, by Power of Attorney  
**Date:** 2023-03-06

### Remarks:

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.**