DORM / Dorman Products, Inc. - SEC Filings, Annual Report, Proxy Statement

Dorman Products, Inc.
US ˙ NasdaqGS ˙ US2582781009

Basic Stats
LEI 2549000O0BBUX740XR59
CIK 868780
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Dorman Products, Inc.
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 28, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-

August 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 4, 2025 DORMAN PRODUCTS, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 4, 2025 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissio

August 4, 2025 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2025 Results and Raises Full Year 2025 Guidance

Exhibit 99.1 Dorman Products, Inc. Reports Second Quarter 2025 Results and Raises Full Year 2025 Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $541.0 million for the quarter, up 7.6% compared to $503.0 million •Diluted earnings per share (“EPS”) of $1.91, up 25% compared to $1.53 •Adjusted diluted EPS* of $2.06, up 23% compared to $1.67 •R

June 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 2, 2025 DORMAN PRODUCTS, INC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 2, 2025 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission

June 5, 2025 EX-99.1

Dorman announces planned retirement of Chief Financial Officer David M. Hession

Exhibit 99.1 Dorman announces planned retirement of Chief Financial Officer David M. Hession COLMAR, Pa., June 5, 2025 (GLOBE NEWSWIRE) – Dorman Products, Inc. (“Dorman” or the “Company”) (NASDAQ:DORM) announced today that David M. Hession, Senior Vice President and Chief Financial Officer, has informed Dorman of his plans to retire later this year. The Company has initiated a comprehensive search

May 29, 2025 EX-1.01

Conflict Minerals Report of Dorman Products, Inc. for the year ended December 31, 202

Ex 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the “Report”) of Dorman Products, Inc. (the “Company,” “Dorman,” “we,” “us,” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2024 to December 31, 2024 (the “Reporting

May 29, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of the registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of pr

May 20, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 16, 2025 Dorman Products, Inc

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 16, 2025 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission File

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 29, 2025 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

May 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 5, 2025 DORMAN PRODUCTS, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 5, 2025 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission F

May 5, 2025 EX-99.1

Dorman Products, Inc. Reports First Quarter 2025 Results

Exhibit 99.1 Dorman Products, Inc. Reports First Quarter 2025 Results Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $507.7 million for the quarter, up 8.3% compared to $468.7 million •Diluted earnings per share (“EPS”) of $1.87, up 78% compared to $1.05 •Adjusted diluted EPS* of $2.02, up 54% compared to $1.31 •Generated $51 million of cash from op

April 7, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )         Filed by the Registrant ☒     Filed by a party other than the Registrant ☐         Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (a

February 27, 2025 EX-10.10

Dorman Products, Inc. Executive Severance Plan.*

Exhibit 10.10 FINAL VERSION DORMAN PRODUCTS, INC. EXECUTIVE SEVERANCE PLAN Plan Document/Summary Plan Description Dorman Products, Inc. (the “Company”) has adopted the Dorman Products, Inc. Executive Severance Plan (the “Plan”) for the benefit of certain employees of the Company and its subsidiaries (hereinafter referred to as the “Company Group”), on the terms and conditions hereinafter stated, e

February 27, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 27, 2025 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania DPL Holding Corporation Delaware DPL Acquisition Corporation Delaware Dayton Parts, LLC Delaware Super ATV, LLC Indiana

February 27, 2025 EX-10.5

Dorman Products, Inc. Amended and Restated Cash Bonus Plan adopted February 21, 2025*

Exhibit 10.5 DORMAN PRODUCTS, INC. AMENDED AND RESTATED CASH BONUS PLAN 1.BACKGROUND AND PURPOSE Dorman Products, Inc., a Pennsylvania corporation, hereby adopts the Dorman Products, Inc. Amended and Restated Cash Bonus Plan (the “Plan”), effective as provided in Paragraph 9. The purpose of the Plan is to align officers’ and other employees’ efforts with the strategic goals of the Company through

February 27, 2025 EX-19

Dorman Products, Inc. Insider Trading Policy amended and restated as of February 21, 2025.*

Exhibit 19 DORMAN PRODUCTS, INC. Insider Trading Policy (Approved by the Board of Directors on February 21, 2025) This Insider Trading Policy (“Policy”) provides the standards of Dorman Products, Inc. (“Dorman” or the “Company”) with respect to transactions in securities of the Company and the handling of confidential information about Dorman and the companies with which Dorman does business. The

February 26, 2025 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Full Year 2024 Results; Issues 2025 Guidance

Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Full Year 2024 Results; Issues 2025 Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $533.8 million for the quarter, up 8.0% compared to $494.3 million •Diluted earnings per share (“EPS”) of $1.77, up 11% compared to $1.60 •Adjusted diluted EPS* of $2.20, up 40% compared to $1.57 •

February 26, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 26, 2025 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commis

November 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 28, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

October 31, 2024 EX-99.1

Dorman Products, Inc. Reports Third Quarter 2024 Results; Raises Full Year 2024 Earnings Guidance

Exhibit 99.1 Dorman Products, Inc. Reports Third Quarter 2024 Results; Raises Full Year 2024 Earnings Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $503.8 million, up 3.2% compared to $488.2 million •Diluted earnings per share (“EPS”) of $1.80, up 41% compared to $1.28 •Adjusted diluted EPS* of $1.96, up 40% compared to $1.40 •Repurchased

October 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 29, 2024 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commiss

August 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 29, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-

August 2, 2024 EX-10.1

Amendment No. 2 to Credit Agreement, dated July 1, 2024, by and among Dorman Products, Inc., the lenders from time to time party thereto, and Bank of America, N.A., as administrative agent.*

Execution Version AMENDMENT NO. 2, dated as of July 1, 2024 (this “Amendment No. 2), to the Credit Agreement, dated as of August 10, 2021 (as amended by Amendment No. 1, dated as of October 4, 2022, and as further amended, restated, amended and restated, supplemented or otherwise modified from time to time, the “Original Credit Agreement”), by and among DORMAN PRODUCTS, INC., a Pennsylvania corpor

August 1, 2024 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2024 Results; Raises Full Year 2024 Earnings Guidance

Exhibit 99.1 Dorman Products, Inc. Reports Second Quarter 2024 Results; Raises Full Year 2024 Earnings Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $503.0 million, up 4.7% compared to $480.6 million •Diluted earnings per share (“EPS”) of $1.53, up 47% compared to $1.04 •Adjusted diluted EPS* of $1.67, up 65% compared to $1.01 •Generated $

August 1, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 1, 2024 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissio

June 20, 2024 SC 13G/A

DORM / Dorman Products, Inc. / BERMAN MARC H - SC 13G/A Passive Investment

SC 13G/A 1 d843517dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) June 14, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

June 18, 2024 SC 13D/A

DORM / Dorman Products, Inc. / BERMAN SHARYN - SC 13D/A Activist Investment

SC 13D/A 1 d843633dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) Sharyn Berman c/o Dorman Products, Inc. 3400 East Walnut Street Colmar, PA 18915 (215) 997-1800 (Name, Ad

June 18, 2024 SC 13D/A

DORM / Dorman Products, Inc. / BERMAN STEVEN L - SC 13D/A Activist Investment

SC 13D/A 1 d835731dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 10)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) Steven L. Berman c/o Dorman Products, Inc. 3400 East Walnut Street Colmar, PA 18915 (215) 997-1800 (Name

May 21, 2024 EX-1.01

Conflict Minerals Report of Dorman Products, Inc. for the year ended December 31, 202

Ex 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the “Report”) of Dorman Products, Inc. (the “Company,” “Dorman,” “we,” “us,” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2023 to December 31, 2023 (the “Reporting

May 21, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of the registrant as specified in its charter) Pennsylvania 000-18914 (State or other jurisdiction of incorporation) (Commission File Number) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of principal executive offices) (Zip Code) Joseph P.

May 20, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 17, 2024 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission File

May 7, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 7, 2024 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission F

May 7, 2024 EX-99.1

Dorman Products, Inc. Reports First Quarter 2024 Results

Exhibit 99.1 Dorman Products, Inc. Reports First Quarter 2024 Results Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $468.7 million, up 0.4% compared to $466.7 million •Diluted earnings per share (“EPS”) of $1.05, up 483% compared to $0.18 •Adjusted diluted EPS* of $1.31, up 134% compared to $0.56 •Generated $52 million of cash from operating activi

May 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 30, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

April 8, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

February 28, 2024 EX-10.4 15

Amended Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.4.15 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of the #Grant Date# is entered into by and between Dorman Products, Inc. (the “Company”) and Participant. 1.Grant of Restricted Stock Units. Effective as of the Grant Date, pursuant to the Dorman

February 28, 2024 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania DPL Holding Corporation Delaware DPL Acquisition Corporation Delaware Dayton Parts, LLC Delaware Super ATV, LLC Indiana

February 28, 2024 EX-10.4 16

Amended Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.4.16 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS PERFORMANCE RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of #Grant Date# (the “Grant Date”) is entered into by and between Dorman Products, Inc. (the “Company”) and #Participant Name# (the “Participant”). 1.Grant of Performance-B

February 28, 2024 EX-19

Dorman Products, Inc. Insider Trading Policy adopted February 23, 2023.*

Exhibit 19 DORMAN PRODUCTS, INC. Insider Trading Policy (Approved by the Board of Directors on February 23, 2023) This Insider Trading Policy (“Policy”) provides the standards of Dorman Products, Inc. (“Dorman” or the “Company”) with respect to transactions in securities of the Company and the handling of confidential information about Dorman and the companies with which Dorman does business. The

February 28, 2024 EX-10.4 17

CEO Amended Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.4.17 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of the #Grant Date# is entered into by and between Dorman Products, Inc. (the “Company”) and Participant. 1.Grant of Restricted Stock Units. Effective as of the Grant Date, pursuant to the Dorman

February 28, 2024 EX-10.4 18

CEO Amended Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.4.18 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS PERFORMANCE RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of #Grant Date# (the “Grant Date”) is entered into by and between Dorman Products, Inc. (the “Company”) and #Participant Name# (the “Participant”). 1.Grant of Performance-B

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 26, 2024 EX-99.2

Dorman Products, Inc.

Exhibit 99.2 Dorman Products, Inc. Recast Historical Segment Information (unaudited) 2022 2023 (in thousands) Q1 Q2 Q3 Q4 FY Q1 Q2 Q3 Q4 FY Net Sales: Light Duty $ 343,053 $ 349,722 $ 346,910 $ 386,207 $ 1,425,892 $ 348,083 $ 353,839 $ 374,697 $ 385,855 $ 1,462,474 Heavy Duty 58,526 67,697 66,560 65,432 258,215 67,647 69,007 62,841 57,418 256,913 Specialty Vehicle — — — 49,642 49,642 51,008 57,722

February 26, 2024 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Full Year 2023 Results; Issues 2024 Guidance

Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Full Year 2023 Results; Issues 2024 Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $494.3 million for the quarter, down 1% reflecting the impact of an extra week in the prior year period, up 3% excluding this impact •Record diluted earnings per share (“EPS”) of $1.60 for the quar

February 26, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 26, 2024 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commis

February 13, 2024 SC 13G/A

DORM / Dorman Products, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0781-dormanproductsinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Dorman Products Inc Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to design

February 2, 2024 SC 13G/A

DORM / Dorman Products, Inc. / BERMAN MARC H - SC 13G/A Passive Investment

SC 13G/A 1 d681613dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

October 31, 2023 EX-99.1

Dorman Products, Inc. Reports Third Quarter 2023 Results

Exhibit 99.1 Dorman Products, Inc. Reports Third Quarter 2023 Results Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $488.2 million, up 18% •Record diluted earnings per share (“EPS”) of $1.28, up 32% compared to $0.97 •Record adjusted diluted EPS* of $1.40, up 20% compared to $1.17 and up 39% compared to the second quarter of 2023 •Generated $56 mil

October 31, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 31, 2023 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commiss

October 31, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file numbe

October 31, 2023 EX-10.1

Dorman Products, Inc. Incentive Compensation Clawback Policy adopted October 25, 2023. Incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q filed on October 31, 2023.

Exhibit 10.1 Dorman Products, Inc. Incentive Compensation Clawback Policy (As Adopted on October 25, 2023 Pursuant to Nasdaq Rule 5608) 1.Overview. The Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of Dorman Products, Inc. (the “Company”) has adopted this Incentive Compensation Clawback Policy (the “Policy”) which requires the recoupment of certain incentive-base

August 1, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 1, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-1

August 1, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 1, 2023 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissio

August 1, 2023 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2023 Results

Exhibit 99.1 Dorman Products, Inc. Reports Second Quarter 2023 Results Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $480.6 million, up 15% •Diluted earnings per share (“EPS”) of $1.04, compared to $1.20 •Adjusted diluted EPS* of $1.01, compared to $1.29 •Generated $67 million of cash from operating activities; repaid $52 million of debt •The Compa

May 26, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of the registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of the registrant as specified in its charter) Pennsylvania 000-18914 (State or other jurisdiction of incorporation) (Commission File Number) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of principal executive offices) (Zip Code) Joseph P.

May 26, 2023 EX-1.01

Conflict Minerals Report of Dorman Products, Inc. for the year ended December 31, 202

Exhibit 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the “Report”) of Dorman Products, Inc. (the “Company,” “Dorman,” “we,” “us,” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2022 to December 31, 2022 (the “Repo

May 19, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 18, 2023 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission File

May 2, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 2, 2023 DORMAN PRODUCTS, INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 2, 2023 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission F

May 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 1, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-

May 2, 2023 EX-99.1

Dorman Products, Inc. Reports First Quarter 2023 Results

Exhibit 99.1 Dorman Products, Inc. Reports First Quarter 2023 Results Highlights (All comparisons are to the prior year period unless otherwise noted): •Net sales of $466.7 million, up 16% •Diluted earnings per share (“EPS”) of $0.18, compared to $1.11 •Adjusted diluted EPS* of $0.56, compared to $1.29 •The Company confirms its previous full-year 2023 guidance of net sales of $1.95 billion to $2.0

May 2, 2023 EX-3.1

Dorman Products, Inc. Amended and Restated By-Laws, as amended February 23, 2023.

Exhibit 3.1 DORMAN PRODUCTS, INC. AMENDED AND RESTATED BY-LAWS DORMAN PRODUCTS, INC. TABLE OF CONTENTS Page ARTICLE I OFFICES 1 Section 1.1 Registered Office 1 ARTICLE II MEETINGS OF SHAREHOLDERS 1 Section 2.1 Place of Meetings of Shareholders 1 Section 2.2 Annual Meeting of Shareholders 1 Section 2.3 Special Meetings of Shareholders 1 Section 2.4 Notices of Meetings of Shareholders 2 Section 2.5

April 4, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   )

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.   ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 1, 2023 EX-10.5 11

Amended Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.

Exhibit 10.5.11 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS PERFORMANCE RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of #Grant Date# (the “Grant Date”) is entered into by and between Dorman Products, Inc. (the “Company”) and #Participant Name# (the “Participant”). 1.Grant of Performance-B

March 1, 2023 EX-10.5 14

Amended Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.5.14 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS PERFORMANCE RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of #Grant Date# (the “Grant Date”) is entered into by and between Dorman Products, Inc. (the “Company”) and #Participant Name# (the “Participant”). 1.Grant of Performance-B

March 1, 2023 EX-10.5 12

Amended Form of Dorman Products, Inc. Non-Qualified Stock Option Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.5.12 DORMAN PRODUCTS, INC. NON-QUALIFIED STOCK OPTION AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS NON-QUALIFIED STOCK OPTION AWARD (this “Award”) dated as of #Grant Date# (the “Grant Date”) is entered into by and between Dorman Products, Inc. (the “Company”) and #Participant Name# (the “Participant”). 1.Grant of Non-Qualified Stock Option.

March 1, 2023 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania DPL Holding Corporation Delaware DPL Acquisition Corporation Delaware Dayton Parts, LLC Delaware Super ATV, LLC Indiana

March 1, 2023 EX-3.2

Dorman Products, Inc. Amended and Restated By-Laws, as amended February 23, 2023.*

Exhibit 3.2 DORMAN PRODUCTS, INC. AMENDED AND RESTATED BY-LAWS 163997.00102/130159814v.3 DORMAN PRODUCTS, INC. TABLE OF CONTENTS Page ARTICLE I OFFICES 1 Section 1.1 Registered Office 1 ARTICLE II MEETINGS OF SHAREHOLDERS 1 Section 2.1 Place of Meetings of Shareholders 1 Section 2.2 Annual Meeting of Shareholders 1 Section 2.3 Special Meetings of Shareholders 1 Section 2.4 Notices of Meetings of S

March 1, 2023 EX-10.5 10

Amended Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.

Exhibit 10.5.10 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of the #Grant Date# is entered into by and between Dorman Products, Inc. (the “Company”) and Participant. 1.Grant of Restricted Stock Units. Effective as of the Grant Date, pursuant to the Dorman

March 1, 2023 EX-10.5 9

Amended Form of Dorman Products, Inc. Non-Qualified Stock Option Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.

Exhibit 10.5.9 DORMAN PRODUCTS, INC. NON-QUALIFIED STOCK OPTION AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS NON-QUALIFIED STOCK OPTION AWARD (this “Award”) dated as of #Grant Date# (the “Grant Date”) is entered into by and between Dorman Products, Inc. (the “Company”) and #Participant Name# (the “Participant”). 1.Grant of Non-Qualified Stock Option.

March 1, 2023 EX-10.5 13

Amended Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.*

Exhibit 10.5.13 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN THIS RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of the #Grant Date# is entered into by and between Dorman Products, Inc. (the “Company”) and Participant. 1.Grant of Restricted Stock Units. Effective as of the Grant Date, pursuant to the Dorman

March 1, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 28, 2023 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2022 Results and Issues 2023 Guidance

Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2022 Results and Issues 2023 Guidance Highlights (All comparisons are to the prior year period unless otherwise noted): •Record net sales of $501.3 million for the quarter, up 25.9% year-over-year •Diluted earnings per share (“EPS”) of $0.57, compared to $1.07 in Q4 2021 •Adjusted diluted EPS* of $1.01, compared to $1.33 in Q4 20

February 28, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 28, 2023 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commis

February 24, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 22, 2023 DORMAN PRODUCTS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 22, 2023 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commis

February 24, 2023 EX-10.1

Transition and Release Agreement dated February 23, 2023 between the Company and Steven L. Berman. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 24, 2023

EX-10.1 Exhibit 10.1 Execution Version TRANSITION AND RELEASE AGREEMENT This Transition and Release Agreement (this “Agreement”) is entered into as of the date set forth on the signature page below (the “Execution Date”), by and between Steven L. Berman (“you”) and Dorman Products, Inc. (the “Company”). WHEREAS, you and the Company are parties to that certain Amended and Restated Employment Agreem

February 9, 2023 SC 13G/A

DORM / Dorman Products Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0756-dormanproductsinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Dorman Products Inc. Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to design

January 24, 2023 SC 13G/A

DORM / Dorman Products Inc. / BERMAN MARC H - SC 13G/A Passive Investment

SC 13G/A 1 d283753dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

October 24, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 24, 2022 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commiss

October 24, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 24, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman

October 24, 2022 EX-99.1

Dorman Products, Inc. Reports Third Quarter 2022 Results

Exhibit 99.1 Dorman Products, Inc. Reports Third Quarter 2022 Results Highlights (All comparisons to the prior year period unless otherwise noted): ? Net sales of $413.5 million, up 19% compared to $348.4 million ? Diluted earnings per share (?EPS?) of $0.97, down 7% compared to $1.04 ? Adjusted diluted EPS* of $1.17, down 1% compared to $1.18 ? Completed acquisition of SuperATV, expanding into th

October 4, 2022 EX-10.1

Amendment No. 1 to Credit Agreement, dated October 4, 2022 by and among Dorman Products, Inc., the lenders from time to time party thereto, and Bank of America, N.A., as administrative agent. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on October 4, 2022. +

Exhibit 10.1 Execution Version AMENDMENT NO. 1, dated as of October 4, 2022 (this ?Amendment No. 1), to the Credit Agreement, dated as of August 10, 2021 (the ?Original Credit Agreement?), by and among DORMAN PRODUCTS, INC., a Pennsylvania corporation (the ?Borrower?), the Subsidiary Guarantors party hereto, the AMENDMENT NO. 1 TERM LOAN LENDERS party hereto (as defined below), the REVOLVING CREDI

October 4, 2022 8-K

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 3, 2022 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissi

October 4, 2022 EX-99.1

Dorman Products, Inc. Completes Acquisition of SuperATV, a Leading Supplier to the Powersports Aftermarket

Exhibit 99.1 Dorman Products, Inc. Completes Acquisition of SuperATV, a Leading Supplier to the Powersports Aftermarket October 4, 2022 COLMAR, PENNSYLVANIA ? Dorman Products, Inc. (the ?Company? or ?Dorman?) (NASDAQ:DORM), a leading supplier in the motor vehicle aftermarket industry, today announced that it completed the acquisition of Super ATV, LLC (?SuperATV?) for $490 million in cash at closi

October 4, 2022 EX-2.1

Amendment, dated as of October 4, 2022 to Unit Purchase Agreement, dated August 17, 2022, by and among Dorman Products, Inc., Super ATV, LLC, the Sellers listed on the signature pages thereto, and Lindsay Hunt, in her capacity as the Sellers’ Representative. Incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on October 4, 2022 . +

Exhibit 2.1 Execution Version AMENDMENT TO PURCHASE AGREEMENT October 4, 2022 This Amendment (this ?Amendment?) to the Unit Purchase Agreement, dated as of August 17, 2022 (the ?Purchase Agreement?), by and among Dorman Products, Inc., a Pennsylvania corporation (?Purchaser?), Super ATV, LLC, an Indiana limited liability company (the ?Company?), the Sellers listed on the signature pages thereto (e

August 18, 2022 EX-99.2

Transaction Summary · Dorman Products to acquire SuperATV for cash consideration of $490 million at closing, plus a two-year earn-out of up to $100 million in the aggregate based on achievement of 2023 and 2024 performance targets. Adjusted for estim

Exhibit 99.2 Dorman Products to Acquire SuperATV INVESTOR SUMMARY Forward-Looking Statements This presentation contains ?forward-looking statements? within the meaning of the Private Securities Litigation Reform Act of 1995, including statements related to net sales, diluted and adjusted diluted earnings per share, gross profit, gross margin, adjusted gross margin, indebtedness, liquidity, new pro

August 18, 2022 EX-99.1

Dorman Products to Acquire SuperATV, a Leading Supplier to the

Exhibit 99.1 Dorman Products to Acquire SuperATV, a Leading Supplier to the Powersports Aftermarket August 18, 2022 Highlights: ? Dorman Products to acquire SuperATV for $490 million in cash at closing, plus a two-year earn-out of up to $100 million in the aggregate based on achievement of 2023 and 2024 performance targets. Adjusted for estimated tax benefits, the transaction value before earn-out

August 18, 2022 EX-2.1

Unit Purchase Agreement, dated August 17, 2022, by and among Dorman Products, Inc., Super ATV, LLC, the Sellers listed on the signature pages thereto, and Lindsay Hunt, in her capacity as the Sellers’ Representative. Incorporated by reference to Exhibit 2.1 to the Company’s Current Report on Form 8-K filed on August 18, 2022. +

Exhibit 2.1 EXECUTION VERSION UNIT PURCHASE AGREEMENT DATED AS OF AUGUST 17, 2022 BY AND AMONG DORMAN PRODUCTS, INC., SUPER ATV, LLC, THE SELLERS PARTY HERETO, AND LINDSAY HUNT, AS THE SELLERS? REPRESENTATIVE TABLE OF CONTENTS Page ARTICLE I. PURCHASE AND SALE OF THE PURCHASED UNITS 2 Section 1.01. Purchased Units 2 Section 1.02. Purchase Price 2 Section 1.03. Payment of the Purchase Price 2 Secti

August 18, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 17, 2022 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissi

July 25, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 25, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Produ

July 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 21, 2022 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission

July 25, 2022 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2022 Results

Exhibit 99.1 Dorman Products, Inc. Reports Second Quarter 2022 Results Highlights (All comparisons to the prior year period unless otherwise noted): ? Record quarterly net sales of $417.4 million, up 34% compared to $310.6 million ? Diluted earnings per share (?EPS?) of $1.20, up 21% compared to $0.99 ? Adjusted diluted EPS* of $1.29, up 17% compared to $1.10 ? Adjusting fiscal 2022 guidance to di

May 26, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 25, 2022 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission File

May 23, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 (State or other jurisdiction of incorporation) (Commission File Number) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of principal executive offices) (Zip Code) Joseph P. Brau

May 23, 2022 EX-1.01

Conflict Minerals Report of Dorman Products, Inc. for the year ended December 31, 2021

Exhibit 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the ?Report?) of Dorman Products, Inc. (the ?Company,? ?Dorman,? ?we,? ?us,? or ?our?) has been prepared pursuant to Rule 13p-1 and Form SD (the ?Rule?) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2021 to December 31, 2021 (the ?Repo

April 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 25, 2022 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissio

April 25, 2022 EX-99.1

Dorman Products, Inc. Reports First Quarter 2022 Results

Exhibit 99.1 Dorman Products, Inc. Reports First Quarter 2022 Results Highlights: ? Record net sales of $401.6 million, up 39% year-over-year. ? Diluted earnings per share (?EPS?) of $1.11, up 9% compared to $1.02 in Q1 2021. ? Adjusted diluted EPS* of $1.29, up 24% compared to $1.04 in Q1 2021. ? The Company is reaffirming its fiscal 2022 guidance of net sales growth of 19% to 22%, diluted EPS of

April 25, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 26, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Prod

April 22, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 18, 2022 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission Fi

April 7, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

DEF 14A 1 ny20001653x1def14a.htm DEF 14A TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of th

February 22, 2022 EX-10.5.12

Amended Form of Dorman Products, Inc. Non-Qualified Stock Option Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan

Exhibit 10.5.12 DORMAN PRODUCTS, INC. NON-QUALIFIED STOCK OPTION AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under ?Award Information? on the ?Award Acceptance? page in Participant?s personal we

February 22, 2022 EX-10.16

Non-Disclosure, Invention Assignment and Restrictive Covenant Agreement – Michael B. Kealey

Exhibit 10.16 EXECUTION VERSION NON-DISCLOSURE, INVENTION ASSIGNMENT AND RESTRICTIVE COVENANT AGREEMENT ? MICHAEL B. KEALEY As a condition of and in consideration for: (i) my eligibility to participate in and receive the 2022 annual equity grants in March under the Stock Plan (as defined below); (ii) my continued employment with Dorman Products, Inc. (the ?Company?); and (iii) the Company?s agreem

February 22, 2022 EX-10.5.14

Amended Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan

Exhibit 10.5.14 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under ?Award Information? on the ?Award Acceptance? page in Participant?s pers

February 22, 2022 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2021 Results

Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2021 Results Highlights: ? Record net sales of $398.2 million for the quarter, up 32% year-over-year. ? Diluted earnings per share (?EPS?) of $1.07, compared to $1.11 in Q4 2020. ? Adjusted diluted EPS* of $1.33 compared to $1.19 in Q4 2020. ? For fiscal 2021, achieved record net sales, diluted EPS and adjusted diluted EPS*. ? Fo

February 22, 2022 10-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [ For the fiscal year ended December 25, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS

February 22, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 22, 2022 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commis

February 22, 2022 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. DPL Holding Corporation DPL Acquisition Corporation Dayton Parts, LLC Pennsylvania Delaware Delaware Delaware

February 22, 2022 EX-10.5.13

Amended Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan

Exhibit 10.5.13 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under ?Award Information? on the ?Award Acceptance? page in Participant?s personal web por

February 9, 2022 SC 13G/A

DORM / Dorman Products Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Dorman Products Inc. Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

January 26, 2022 SC 13G/A

DORM / Dorman Products Inc. / BERMAN MARC H - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

December 13, 2021 EX-10.2

Dorman Products, Inc. Executive Severance Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on December 13, 2021

Exhibit 10.2 FINAL VERSION DORMAN PRODUCTS, INC. EXECUTIVE SEVERANCE PLAN Plan Document/Summary Plan Description Dorman Products, Inc. (the ?Company?) has adopted the Dorman Products, Inc. Executive Severance Plan (the ?Plan?) for the benefit of certain employees of the Company and its subsidiaries (hereinafter referred to as the ?Company Group?), on the terms and conditions hereinafter stated, ef

December 13, 2021 EX-10.1

Amended and Restated Employment Agreement between the Company and Kevin M. Olsen dated December 13, 2021. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on December 13, 2021

Exhibit 10.1 EXECUTION VERSION AMENDED AND RESTATED EMPLOYMENT AGREEMENT THIS AMENDED AND RESTATED EMPLOYMENT AGREEMENT (?Agreement?) is made and entered into this 13th day of December, 2021, by and between DORMAN PRODUCTS, INC., a Pennsylvania corporation (the ?Company?), and KEVIN OLSEN (the ?Executive?), and is effective as of December 26, 2021 (the ?Effective Date?). W I T N E S S E T H: WHERE

December 13, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 9, 2021 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission

November 2, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 30, 2021 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission

November 2, 2021 EX-99.1

1

Exhibit 99.1 DORMAN ANNOUNCES THE APPOINTMENT OF J. DARRELL THOMAS TO ITS BOARD OF DIRECTORS November 2, 2021 COLMAR, PENNSYLVANIA ? Dorman Products, Inc. (the ?Company?) (NASDAQ:DORM) today announced that J. Darrell Thomas has been appointed as an independent director to the Company?s Board of Directors, effective October 30, 2021. Mr. Thomas? appointment expands the Board to nine directors, seve

October 25, 2021 EX-99.1

Dorman Products, Inc. Reports Third Quarter Results

Exhibit 99.1 Dorman Products, Inc. Reports Third Quarter Results Highlights: ? Record net sales of $348.4 million, up 16% as compared to $300.6 million in Q3 2020. ? Diluted earnings per share (?EPS?) of $1.04, compared to $1.06 in Q3 2020. ? Adjusted diluted EPS* of $1.18 compared to $1.14 in Q3 2020. ? Completed acquisition of Dayton Parts, accelerating Dorman?s heavy-duty growth strategy. COLMA

October 25, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 25, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman

October 25, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 25, 2021 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commiss

August 10, 2021 EX-10.1

Credit Agreement, dated August 10, 2021 by and among Dorman Products, Inc., the lenders from time to time party thereto, and Bank of American, N.A., as administrative agent. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on August 10, 2021.

Exhibit 10.1 Execution Version Published Deal CUSIP # 25827PAA0 Revolver Facility CUSIP # 25827PAB8 CREDIT AGREEMENT dated as of August 10, 2021 by and among DORMAN PRODUCTS, INC., as Borrower, the Lenders referred to herein, as Lenders, and BANK OF AMERICA, N.A., as Administrative Agent and Swingline Lender BANK OF AMERICA, N.A. PNC CAPITAL MARKETS LLC and WELLS FARGO SECURITIES, LLC, as Joint Le

August 10, 2021 EX-99.1

Dorman Products, Inc. Completes Acquisition of Dayton Parts and Provides Updated 2021 Guidance

Exhibit 99.1 Dorman Products, Inc. Completes Acquisition of Dayton Parts and Provides Updated 2021 Guidance AUGUST 10, 2021 COLMAR, PENNSYLVANIA ? Dorman Products, Inc. (the ?Company? or ?Dorman?) (NASDAQ:DORM), a leading supplier in the automotive aftermarket industry, today announced that it completed the acquisition of Dayton Parts (?Dayton?) for a total cash consideration of approximately $338

August 10, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 10, 2021 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissi

July 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 26, 2021 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission

July 26, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 26, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Produ

July 26, 2021 EX-99.1

Dorman Products, Inc. Reports Second Quarter Results

Exhibit 99.1 Dorman Products, Inc. Reports Second Quarter Results Highlights: ? Record net sales of $310.6 million, up 33% as compared to $233.2 million in Q2 2020. ? Diluted earnings per share (?EPS?) of $0.99, compared to $0.43 in Q2 2020. ? Adjusted diluted EPS* of $1.10, compared to $0.47 in Q2 2020. ? Dayton Parts acquisition on track to close in the second half of 2021. COLMAR, PA (July 26,

June 28, 2021 EX-99.2

Transaction Summary OVERVIEW CAPITAL STRUCTURE VALUE CREATION TIMING Dorman Products to acquire Dayton Parts for total consideration of $338 million, subject to customary adjustments Dayton Parts offers a complete line of brake, spring, steering, sus

Dorman Products to Acquire Dayton Parts INVESTOR SUMMARY Exhibit 99.2 Forward-Looking Statements This press release contains ?forward-looking statements? within the meaning of the Private Securities Litigation Reform Act of 1995, including statements related to net sales, diluted and adjusted diluted earnings per share, selling, general and administrative expenses, gross margins, adjusted gross ma

June 28, 2021 EX-99.1

Dorman Products, Inc. to Acquire Dayton Parts

Exhibit 99.1 Dorman Products, Inc. to Acquire Dayton Parts JUNE 27, 2021 Highlights: ? Dorman Products, Inc. signed a definitive agreement to acquire Dayton Parts, a leading independent heavy-duty undercarriage aftermarket component supplier for $338 million. ? The addition of Dayton Parts accelerates Dorman?s heavy-duty growth strategy by adding large and complementary offerings of undercarriage

June 28, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 25, 2021 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission Fil

June 28, 2021 EX-2.1

Agreement and Plan of Merger, dated June 25, 2021, by and among Dorman Products, Inc., Senators Merger Sub, Inc., DPL Holding Corporation and SBF II Representative Corp., solely in its capacity as Equityholder Representative. Incorporated by reference to Exhibit 2.1 to the company’s Current Report on Form 8-K filed on June 28, 2021.

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER by and among DORMAN PRODUCTS, INC., SENATORS MERGER SUB, INC., DPL HOLDING CORPORATION, and SBF II REPRESENTATIVE CORP., solely in its capacity as the Equityholder Representative Dated: June 25, 2021 TABLE OF CONTENTS ARTICLE I Definitions and Rules of Construction 1 1.1. Definitions 1 1.2. Rules of Construction 19 ARTICLE II The Merger 20

May 21, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of princi

May 21, 2021 EX-1.01

Conflict Minerals Report of Dorman Products, Inc. for the year ended December 31, 2020

Exhibit 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the ?Report?) of Dorman Products, Inc. (the ?Company,? ?Dorman,? ?we,? ?us,? or ?our?) has been prepared pursuant to Rule 13p-1 and Form SD (the ?Rule?) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2020 to December 31, 2020 (the ?Repo

May 14, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 13, 2021 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission File

April 26, 2021 EX-99.1

Dorman Products, Inc. Reports First Quarter 2021 Results

Exhibit 99.1 Dorman Products, Inc. Reports First Quarter 2021 Results Highlights: ? Net sales of $288.0 million, up 12% as compared to $257.7 million in Q1 2020. ? Diluted earnings per share (?EPS?) of $1.02 up 46% as compared to $0.70 in Q1 2020. ? Adjusted diluted EPS* of $1.04, up 58% as compared to $0.66 in Q1 2020. ? Dorman?s strong balance sheet and ample liquidity provide solid foundation f

April 26, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 27, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Prod

April 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 26, 2021 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissio

March 31, 2021 DEF 14A

- DEF 14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.? ) Filed by the Registrant ? ? ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as per

March 24, 2021 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 9)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) Stev

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 9)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) Steven L. Berman c/o Dorman Products, Inc. 3400 East Walnut Street Colmar, PA 18915 (215) 997-1800 (Name, Address and Telephone Number

March 24, 2021 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) Shar

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) Sharyn Berman c/o Dorman Products, Inc. 3400 East Walnut Street Colmar, PA 18915 (215) 997-1800 (Name, Address and Telephone Number of Person Au

February 22, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 22, 2021 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commis

February 22, 2021 EX-4.3

Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934. Incorporated by reference to Exhibit 4.3 to the Company’s Current Report on Form 10-K filed on February 22, 2021

Exhibit 4.3 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Dorman Products, Inc. has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): our common stock, par value $.01 per share (the ?common stock?). References herein to ?we,? ?us,? ?our company? and ?Dorm

February 22, 2021 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2020 Results

Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2020 Results Highlights: • Dorman surpasses $1 billion in annual net sales in 2020 for the first time in company history. • Record quarterly net sales and earnings per share (“EPS”) driven by robust demand and strong execution. • Net sales of $301.2 million, up 26% as compared to $239.6 million in Q4 2019. • GAAP diluted EPS of $

February 22, 2021 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania

February 22, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 26, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Dorman Products Inc. Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

February 8, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) Decemb

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

October 29, 2020 EX-99.1

Corrected: Dorman Products, Inc. Reports Third Quarter 2020 Results

Exhibit 99.1 Corrected: Dorman Products, Inc. Reports Third Quarter 2020 Results Dorman Products, Inc. is re-issuing its earnings press release for the third quarter ended September 26, 2020, issued on October 28, 2020, to correct certain typographical errors contained in its September 26, 2020 consolidated balance sheet. All other numbers and information remain unchanged. The corrected release re

October 29, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 26, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman

October 29, 2020 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 27, 2020 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commi

October 28, 2020 EX-99.1

Dorman Products, Inc. Reports Third Quarter 2020 Results

Exhibit 99.1 Dorman Products, Inc. Reports Third Quarter 2020 Results Highlights: • Record quarterly net sales and diluted EPS driven by strong demand and execution throughout the quarter. • Net sales of $300.6 million, up 18.4% compared to $253.8 million in Q3 2019. • Diluted earnings per share (EPS) on a GAAP basis of $1.06 compared to $0.65 in Q3 2019. • Adjusted diluted EPS* of $1.14 compared

October 28, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events - DORM-8K-2020-Q3ER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 27, 2020 DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commiss

September 28, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): September 25, 2020 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commissio

September 28, 2020 EX-99.1

DORMAN ANNOUNCES THE APPOINTMENT OF LISA BACHMANN TO ITS BOARD OF DIRECTORS

Exhibit 99.1 Press Release Dorman (R) DORMAN ANNOUNCES THE APPOINTMENT OF LISA BACHMANN TO ITS BOARD OF DIRECTORS SEPTEMBER 28, 2020 COLMAR, PENNSYLVANIA – Dorman Products, Inc. (NASDAQ:DORM) today announced that Lisa Bachmann has been appointed as an independent director to the Company’s Board of Directors, effective September 25, 2020. Ms. Bachmann’s appointment expands the Board to 8 directors,

July 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 27, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Produ

July 30, 2020 EX-10.2

Form of Dorman Products, Inc. Restricted Stock Unit Award for Non-Employee Directors Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 10-Q for the quarter ended June 27, 2020.

Exhibit 10.2 dorman products, inc. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under “Award Information” on the “Award Acceptance” page in Participant’s personal web portal

July 29, 2020 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2020 Results

Exhibit 99.1 Dorman Products, Inc. Reports Second Quarter 2020 Results Highlights: • Net sales of $233.2 million, down 8.3% compared to $254.2 million in Q2 2019. Order volume was down early in the quarter compared to prior year and improved throughout the quarter ending with a strong June that has continued through July. • Diluted earnings per share (EPS) on a GAAP basis of $0.43 compared to $0.6

July 29, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 29, 2020 Dorman Products, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission

May 26, 2020 SD

- FORM SD - CONFLICT MINERALS FY2019

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of princi

May 26, 2020 EX-1.01

Conflict Minerals Report of Dorman Products, Inc. for the year ended December 31, 2019

EXHIBIT 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the “Report”) of Dorman Products, Inc. (the “Company,” “Dorman,” “we,” “us,” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2019 to December 31, 2019 (the “Repo

May 18, 2020 8-K

8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 14, 2020 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission File

April 27, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 27, 2020 Dorman Products, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commissio

April 27, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 28, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Prod

April 27, 2020 EX-99.1

Dorman Products, Inc. Reports First Quarter 2020 Results

Exhibit 99.1 Dorman Products, Inc. Reports First Quarter 2020 Results Highlights: • Net sales of $257.7 million, up 6% compared to $243.8 million in Q1 2019. • Diluted earnings per share (EPS) on a GAAP basis of $0.70 compared to $0.71 in Q1 2019. • Adjusted diluted EPS of $0.66 compared to $0.79 in Q1 2019 • Dorman has ample liquidity and is positioned well to navigate the ongoing COVID-19 pandem

April 13, 2020 DEF 14A

DORM / Dorman Products, Inc. DEF 14A - - DEF 14A

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitt

April 9, 2020 EX-99.1

Dorman Products, Inc. Provides Business Update on COVID-19 and Announces Date to Report First Quarter 2020 Financial Results

Exhibit 99.1 Dorman Products, Inc. Provides Business Update on COVID-19 and Announces Date to Report First Quarter 2020 Financial Results • Dorman facilities and global supply chain continue to meet current customer demand levels • Proactive steps taken to manage costs, enhance liquidity and bolster balance sheet • Given uncertainty of COVID-19 pandemic, Dorman withdraws fiscal 2020 guidance • Dor

April 9, 2020 EX-3.2

Dorman Products, Inc. Amended and Restated By-Laws, as amended April 7, 2020. Incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed on April 9, 2020.

Exhibit 3.2 DORMAN PRODUCTS, INC. AMENDED AND RESTATED BY-LAWS DORMAN PRODUCTS, INC. TABLE OF CONTENTS Page ARTICLE I OFFICES1 Section 1.1 Registered Office1 ARTICLE II MEETINGS OF SHAREHOLDERS1 Section 2.1 Place of Meetings of Shareholders1 Section 2.2 Annual Meeting of Shareholders1 Section 2.3 Special Meetings of Shareholders1 Section 2.4 Notices of Meetings of Shareholders2 Section 2.5 Quorum

April 9, 2020 8-K

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 7, 2020 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission Fil

March 26, 2020 8-K

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 23, 2020 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission Fi

March 5, 2020 10-K/A

Annual Report - 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 28, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-189

March 2, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 28, 2020 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission

March 2, 2020 EX-10.2

Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on March 2, 2020

EX-10.2 Exhibit 10.2 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under “Award Information” on the “Award Acceptance” page in Participant’s personal we

March 2, 2020 EX-10.3

Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed on March 2, 2020

EX-10.3 Exhibit 10.3 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under “Award Information” on the “Award Acceptance” page in Participant’s

March 2, 2020 EX-10.1

Form of Dorman Products, Inc. Non-Qualified Stock Option Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 2, 2020.

EX-10.1 Exhibit 10.1 DORMAN PRODUCTS, INC. NON-QUALIFIED STOCK OPTION AWARD PURSUANT TO THE DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN * * * * * Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below). Grant Date: Shall be the date set forth under “Award Information” on the “Award Acceptance” page in Participant’s person

February 26, 2020 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania

February 26, 2020 EX-4.3

Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934.

Exhibit 4.3 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 Dorman Products, Inc. has one class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”): our common stock, par value $.01 per share (the “common stock”). References herein to “we,” “us,” “our company” and “Dorm

February 26, 2020 10-K

Annual Report - 2019 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 28, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 26, 2020 EX-10.17

Offer Letter, dated April 8, 2019, between the Company and Joseph P. Braun. Incorporated by reference to Exhibit 10.17 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 28, 2019.

Exhibit 10.17 April 8, 2019 Mr. Joseph Braun (delivered electronically) Re: Offer of Employment Dear Joe: On behalf of Dorman Products, Inc., it is with great pleasure that I extend this offer of employment to you. Please know that this offer is contingent upon execution of the enclosed non-competition and confidentially agreement. As previously discussed, below are the significant aspects of the

February 24, 2020 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2019 Results, Issues Fiscal 2020 Guidance

EX-99.1 Exhibit 99.1 Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2019 Results, Issues Fiscal 2020 Guidance • Fourth Quarter 2019 net sales of $239.6 million, down 8% compared to $260.3 million in the prior year. • Diluted earnings per share (EPS) in the quarter on a GAAP basis declined 49% to $0.54 compared to $1.05 in the prior year. Adjusted diluted EPS of $0.52, declined 53% compare

February 24, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 24, 2020 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission

February 12, 2020 SC 13G/A

DORM / Dorman Products, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Dorman Products Inc Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒

February 3, 2020 SC 13G/A

DORM / Dorman Products, Inc. / Berman Marc H - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

January 8, 2020 EX-3.2

Amended and Restated Bylaws. Incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K/A filed on December 8, 2020.

EX-3.2 Exhibit 3.2 DORMAN PRODUCTS, INC. AMENDED AND RESTATED BY-LAWS DORMAN PRODUCTS, INC. TABLE OF CONTENTS Page ARTICLE I OFFICES 1 Section 1.1 Registered Office 1 ARTICLE II MEETINGS OF SHAREHOLDERS 1 Section 2.1 Place of Meetings of Shareholders 1 Section 2.2 Annual Meeting of Shareholders 1 Section 2.3 Special Meetings of Shareholders 1 Section 2.4 Notices of Meetings of Shareholders 2 Secti

January 8, 2020 8-K/A

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 12, 2019 DORMAN PRODUCTS, INC.

December 16, 2019 EX-3.2

Dorman Products, Inc. Amended and Restated By-Laws, as amended.

EX-3.2 Exhibit 3.2 DORMAN PRODUCTS, INC. AMENDED AND RESTATED BY-LAWS DORMAN PRODUCTS, INC. TABLE OF CONTENTS ARTICLE I - OFFICES 1 Section 1-1 Registered Office 1 ARTICLE II - MEETINGS OF SHAREHOLDERS 1 Section 2-1 Place of Meetings of Shareholders 1 Section 2-2 Annual Meeting of Shareholders 1 Section 2-3 Special Meetings of Shareholders 1 Section 2-4 Notices of Meetings of Shareholders 2 Sectio

December 16, 2019 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 12, 2019 DORMAN PRODUCTS, INC.

October 28, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 28, 2019 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission

October 28, 2019 EX-99.1

Dorman Products, Inc. Reports Third Quarter 2019 Results

EX-99.1 Exhibit 99.1 Dorman Products, Inc. Reports Third Quarter 2019 Results Highlights: • Net sales of $253.8 million, up 2.4% compared to $248.0 million in Q3 2018. • Diluted earnings per share (EPS) on a GAAP basis of $0.65 compared to $1.03 in Q3 2018. • Adjusted diluted EPS of $0.67 compared to $1.06 in Q3 2018. • New distribution facility in Portland, TN, became fully operational in early Q

October 28, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 28, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman

September 20, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 18, 2019 DORMAN PRODUCTS, INC.

September 20, 2019 EX-10.1

Separation Agreement and General Release by and between Michael Ginnetti and Dorman Products, Inc. dated as of September 18, 2019

EX-10.1 Exhibit 10.1 SEPARATION AGREEMENT AND GENERAL RELEASE This Separation Agreement and General Release (hereinafter the “Agreement”) is entered into by and between DORMAN PRODUCTS, INC., a Pennsylvania corporation (the “Company”) and MICHAEL GINNETTI (“Employee”). WHEREAS, the Company and Employee have mutually decided to terminate the employment of the Employee with an effective date of Augu

July 31, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 29, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Produ

July 30, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 30, 2019 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commi

July 30, 2019 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2019 Results

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports Second Quarter 2019 Results Highlights: • Net sales of $254.2 million, up 7% compared to $238.1 million in Q2 2018. • Diluted earnings per share (EPS) on a GAAP basis of $0.66 compared to $1.03 in Q2 2018. • Adjusted diluted EPS of $0.68 compared to $1.09 in Q2 2018. COLMAR, PA (July 30, 2019) – Dorman Products, Inc. (the “Co

May 31, 2019 EX-1.01

DORMAN PRODUCTS, INC. Conflict Minerals Report

EX-1.01 EXHIBIT 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the “Report”) of Dorman Products, Inc. (the “Company,” “Dorman,” “we,” “us,” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2018 to December 31, 2018 (t

May 31, 2019 SD

DORM / Dorman Products, Inc. SD - - SD

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of pri

May 21, 2019 8-K

Submission of Matters to a Vote of Security Holders

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 20, 2019 DORMAN PRODUCTS, INC.

May 1, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman Prod

April 29, 2019 EX-99.1

Dorman Products, Inc. Reports First Quarter 2019 Results

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports First Quarter 2019 Results Highlights: • Net sales of $243.8 million, up 7% compared to $227.3 million in Q1 2018. • Diluted earnings per share (EPS) on a GAAP basis of $0.71 compared to $0.93 in Q1 2018. Adjusted diluted EPS of $0.79 compared to $0.96 in Q1 2018. • Completed two key site consolidation initiatives during the

April 29, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 29, 2019 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Comm

April 5, 2019 DEFA14A

DORM / Dorman Products, Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

April 5, 2019 DEF 14A

DORM / Dorman Products, Inc. DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 26, 2019 10-K

DORM / Dorman Products, Inc. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 29, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 26, 2019 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania

February 25, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 21, 2019 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (C

February 25, 2019 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2018 Results, Issues Fiscal 2019 Guidance

EX-99.1 3 d693959dex991.htm EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2018 Results, Issues Fiscal 2019 Guidance Highlights: • Net sales of $260.3 million, up 14% compared to $227.7 million last year. • Diluted earnings per share (EPS) on a GAAP basis increased 62% to $1.05 compared to $0.65 last year. Adjusted diluted EPS of $1.10, up 26% co

February 25, 2019 EX-10.1

Form of 2019 Chief Executive Officer Restricted Stock Award Agreement under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 25, 2019.

EX-10.1 Exhibit 10.1 DORMAN PRODUCTS, INC. 2019 CHIEF EXECUTIVE OFFICER RESTRICTED STOCK AWARD This is a Restricted Stock Award (this “Award”) dated [ ], 2019 (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to Kevin M. Olsen (the “Grantee”). 1. Award of Stock. Effective as of the Grant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”)

February 19, 2019 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2019 Dorman Products, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation

February 19, 2019 EX-10.1

Offer Letter, dated January 24, 2019, between the Company and David Hession. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 19, 2019.

EX-10.1 2 d647390dex101.htm EX-10.1 Exhibit 10.1 January 24, 2019 Mr. David Hession (delivered electronically) Re: Offer of Employment Dear David: On behalf of Dorman Products, Inc., it is with great pleasure that I extend this offer of employment to you. Please know that this offer is contingent upon execution of the enclosed non-competition and confidentiality agreement. As previously discussed,

February 19, 2019 EX-99.1

Dorman Products, Inc. Appoints David M. Hession as Chief Financial Officer

EX-99.1 3 d647390dex991.htm EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Appoints David M. Hession as Chief Financial Officer COLMAR, PENNSYLVANIA (February 19, 2019) – Dorman Products, Inc. (NASDAQ:DORM) today announced that David M. Hession will join its management team as Senior Vice President and Chief Financial Officer effective March 1, 2019. “I’m excited to welcome David

February 11, 2019 SC 13G/A

DORM / Dorman Products, Inc. / VANGUARD GROUP INC Passive Investment

dormanproductsinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5 )* Name of issuer: Dorman Products Inc Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate bo

February 1, 2019 SC 13G/A

DORM / Dorman Products, Inc. / Berman Marc H - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

January 11, 2019 EX-10.1

Employment Agreement, dated January 10, 2019, between the Company and Kevin Olsen. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on January 11, 2019.

EX-10.1 Exhibit 10.1 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (“Agreement”) is made and entered into this 10th day of January, 2019, by and between DORMAN PRODUCTS, INC., a Pennsylvania corporation (the “Company”), and KEVIN OLSEN (the “Executive”), and is effective as of January 1, 2019 (the “Effective Date”). W I T N E S S E T H: WHEREAS, the Company and the Executive desire to enter into

January 11, 2019 EX-99.1

Dorman Products, Inc. Announces Leadership Succession

EX-99.1 3 d689413dex991.htm EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Announces Leadership Succession COLMAR, PENNSYLVANIA (January 10, 2019) – Dorman Products, Inc. (NASDAQ:DORM) today announced the completion of the previously announced leadership succession plan. Effective as of January 1, 2019, Kevin M. Olsen, previously the Company’s President and Chief Operating Office

January 11, 2019 8-K

Financial Statements and Exhibits

8-K 1 d689413d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): January 10, 2019 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction

December 14, 2018 8-K

Financial Statements and Exhibits, Other Events

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 13, 2018 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (C

December 14, 2018 EX-99.1

Dorman Products, Inc. Announces Expansion and Extension of Stock Repurchase Program

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Announces Expansion and Extension of Stock Repurchase Program COLMAR, PENNSYLVANIA (December 13, 2018) – Dorman Products, Inc. (the “Company”) (NASDAQ:DORM) today announced that its Board of Directors has approved a resolution to increase and extend its share repurchase program by an additional $150 million, raising the aggregate aut

October 30, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2018 Dorman Products, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Com

October 30, 2018 EX-10.1

Transition Agreement by and between Mathias J. Barton and the Company dated as of October 25, 2018

EX-10.1 Exhibit 10.1 TRANSITION AGREEMENT This TRANSITION AGREEMENT (“Agreement”) is made and entered into by and between MATHIAS J. BARTON, on behalf of himself, and his heirs, estate, executors, administrators, representatives, successors and assigns (hereinafter collectively referred to as “Executive”) and DORMAN PRODUCTS, INC., a Pennsylvania corporation (the “Company”), on behalf of itself an

October 30, 2018 10-Q

DORM / Dorman Products, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 29, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-18914 Dorman

October 26, 2018 EX-99.1

Dorman Products, Inc. Reports Third Quarter 2018 Results

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports Third Quarter 2018 Results Highlights: • Net sales of $248.0 million, up 10% compared to $224.6 million last year. • Diluted earnings per share (EPS) on a GAAP basis increased 29% to $1.03 compared to $0.80 last year. Adjusted diluted EPS of $1.06, up 31% compared to $0.81 last year. • Completed the acquisition of Flight Syst

October 26, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 25, 2018 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Co

August 9, 2018 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2018 Dorman Products, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (

August 9, 2018 EX-99.1

Dorman Products, Inc. Announces CEO Succession Plan

EX-99.1 Exhibit 99.1 NEWS RELEASE Contact: Kevin Olsen, President and COO, [email protected], (215) 997-1800. Visit our website at www.dormanproducts.com Dorman Products, Inc. Announces CEO Succession Plan COLMAR, PENNSYLVANIA (August 9, 2018) – Dorman Products, Inc. (NASDAQ:DORM) today announced that, effective August 6, 2018, Kevin M. Olsen, formerly the Company’s Executive Vice Presiden

August 1, 2018 10-Q

DORM / Dorman Products, Inc. 2018 10-Q_JUNE 30 (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0-

July 31, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 31, 2018 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commission Fil

July 31, 2018 EX-99.1

Dorman Products, Inc. Reports Second Quarter 2018 Results

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports Second Quarter 2018 Results Highlights: • Diluted earnings per share (EPS) of $1.03 on a GAAP basis, including $0.07 per share in acquisition-related charges, increased 24% compared to $0.83 last year. Adjusted diluted EPS of $1.09, up 30% compared to $0.84 last year. • Net sales of $238.1 million, up 4% compared to $229.3 mi

May 29, 2018 SD

DORM / Dorman Products, Inc. SD

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report DORMAN PRODUCTS, INC. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 3400 East Walnut Street, Colmar, Pennsylvania 18915 (Address of pri

May 29, 2018 EX-1.01

DORMAN PRODUCTS, INC. Conflict Minerals Report

EX-1.01 EXHIBIT 1.01 DORMAN PRODUCTS, INC. Conflict Minerals Report Explanatory Note This Conflict Minerals Report (the “Report”) of Dorman Products, Inc. (the “Company,” “we,” “us,” or “our”) has been prepared pursuant to Rule 13p-1 and Form SD (the “Rule”) promulgated under the Securities Exchange Act of 1934, as amended, for the reporting period January 1, 2017 to December 31, 2017 (the “Report

May 18, 2018 S-8

DORM / Dorman Products, Inc. FORM S-8

Form S-8 As filed with the Securities and Exchange Commission on May 18, 2018 Commission File No.

May 14, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 10, 2018 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commis

May 14, 2018 EX-10.1

Form of Non-Qualified Stock Option Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on May 14, 2018.

EX-10.1 Exhibit 10.1 DORMAN PRODUCTS, INC. NON-QUALIFIED STOCK OPTION AWARD This is a Non-Qualified Stock Option Award (this “Award”) dated [ ] (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to [ ] (the “Optionee”). 1. Grant of Option. Subject to the terms and conditions set forth herein and in the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”), the Co

May 14, 2018 EX-10.2

Form of Incentive Stock Option Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on May 14, 2018.

EX-10.2 Exhibit 10.2 DORMAN PRODUCTS, INC. INCENTIVE STOCK OPTION AWARD This is an Incentive Stock Option Award (this “Award”) dated [ ] (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to [ ] (the “Optionee”). 1. Grant of Option. Subject to the terms and conditions set forth herein and in the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”), the Company h

May 14, 2018 EX-10.4

Form of Performance Restricted Stock Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan

EX-10.4 Exhibit 10.4 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK AWARD This is a Performance Restricted Stock Award (this “Award”) dated [ ] (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to [ ] (the “Grantee”). 1. Award of Stock. Effective as of the Grant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”), the Company hereby a

May 14, 2018 EX-10.5

Form of Restricted Stock Unit Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.5 to the Company’s Current Report on Form 8-K filed on May 14, 2018.

EX-10.5 Exhibit 10.5 DORMAN PRODUCTS, INC. RESTRICTED STOCK UNIT AWARD This is a Restricted Stock Unit Award (this “Award”) dated [ ] (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to [ ] (the “Grantee”). 1. Grant of Restricted Stock Units. Effective as of the Grant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”), the Company hereb

May 14, 2018 EX-10.6

Form of Performance Restricted Stock Unit Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.6 to the Company’s Current Report on Form 8-K filed on May 14, 2018.

EX-10.6 Exhibit 10.6 DORMAN PRODUCTS, INC. PERFORMANCE RESTRICTED STOCK UNIT AWARD This is a Performance Restricted Stock Unit Award (the “Award”) [ ] (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to [ ] (the “Grantee”). 1. Grant of Performance Restricted Stock Units. (a) Effective as of the Grant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Pla

May 14, 2018 EX-10.3

Form of Restricted Stock Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed on May 14, 2018.

EX-10.3 Exhibit 10.3 DORMAN PRODUCTS, INC. RESTRICTED STOCK AWARD This is a Restricted Stock Award (this “Award”) dated [ ] (the “Grant Date”) from Dorman Products, Inc. (the “Company”) to [ ] (the “Grantee”). 1. Award of Stock. Effective as of the Grant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”), the Company hereby awards the Grantee [ ] sh

May 3, 2018 10-Q

DORM / Dorman Products, Inc. 10-Q Q1 2018 (Quarterly Report)

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 0

May 1, 2018 EX-99.1

Dorman Products, Inc. Reports First Quarter 2018 Results, Re-affirms 2018 Guidance

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports First Quarter 2018 Results, Re-affirms 2018 Guidance Highlights: • Diluted earnings per share (EPS) of $0.93 on a GAAP basis, including $0.03 per share in acquisition-related charges, increased 9% compared to $0.85 last year. Adjusted diluted EPS of $0.96, up 13% compared to $0.85 last year. • Revenues of $227.3 million, up 3

May 1, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 1, 2018 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (Commiss

March 29, 2018 DEFA14A

DORM / Dorman Products, Inc. DEFA14A

DEFA14A 1 d530309ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commissi

March 29, 2018 DEF 14A

Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit A of the Company’s Definitive Proxy Statement filed on Schedule 14A on March 22, 2018.

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

March 22, 2018 EX-10.1

Dorman Products, Inc. 2018 Cash Bonus Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 22, 2018.

EX-10.1 Exhibit 10.1 DORMAN PRODUCTS, INC. 2018 CASH BONUS PLAN 1. BACKGROUND AND PURPOSE Dorman Products, Inc., a Pennsylvania corporation, hereby adopts the Dorman Products, Inc. 2018 Cash Bonus Plan (the “Plan”), effective as provided in Paragraph 10. The purpose of the Plan is to align officers’ and other employees’ efforts with the strategic goals of the Company through competitive annual inc

March 22, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 21, 2018 Dorman Products, Inc. (Exact name of registrant as specified in its charter) Pennsylvania 000-18914 23-2078856 (State or other jurisdiction of incorporation) (

February 27, 2018 EX-21

Subsidiaries of the Company.

Exhibit 21 Significant Subsidiaries of Dorman Products, Inc. Subsidiary Jurisdiction RB Distribution, Inc. Pennsylvania RB Management, Inc. Pennsylvania

February 27, 2018 10-K

DORM / Dorman Products, Inc. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 30, 2017 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 0-18914 DORMAN PRODUCTS,

February 26, 2018 EX-99.1

Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2017 Results, Issues Fiscal 2018 Guidance

EX-99.1 Exhibit 99.1 For Immediate Release Dorman Products, Inc. Reports Fourth Quarter and Fiscal 2017 Results, Issues Fiscal 2018 Guidance Highlights: • Diluted earnings per share (EPS) of $0.65 on a GAAP basis, including $0.22 per share in tax and acquisition-related charges, compared to $0.83 last year. Adjusted diluted EPS of $0.87, up 5% compared to $0.83 last year • Completed the acquisitio

February 26, 2018 8-K

DORM / Dorman Products, Inc. FORM 8-K (Current Report)

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 26, 2018 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction of Incorporation) (C

February 9, 2018 SC 13G/A

DORM / Dorman Products, Inc. / VANGUARD GROUP INC Passive Investment

dormanproductsinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Dorman Products Inc Title of Class of Securities: Common Stock CUSIP Number: 258278100 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate bo

February 6, 2018 SC 13G/A

DORM / Dorman Products, Inc. / Berman Marc H - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

December 8, 2017 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K 1 d503301d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 7, 2017 Dorman Products, Inc. (Exact name of Registrant as Specified in Charter) Pennsylvania 000-18914 23-2078856 (State or Other Jurisdiction

December 8, 2017 EX-10.1

Credit Agreement dated as of December 7, 2017, by and between the Company and Wells Fargo Bank, National Association. Incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 8, 2017.

EX-10.1 Exhibit 10.1 Published CUSIP Number: Revolving Credit CUSIP Number: $100,000,000.00 CREDIT AGREEMENT dated as of December 7, 2017, by and among DORMAN PRODUCTS, INC., as Borrower, and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent and Issuing Lender, and the Lenders referred to herein, as Lenders TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.01 Definitions 1 Sec

December 7, 2017 SC 13D

DORM / Dorman Products, Inc. / Berman Sharyn - SC 13D Activist Investment

SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* Dorman Products, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 258278100 (CUSIP Number) Sharyn Berman c/o Dorman Products, Inc. 3400 East Walnut Street Colmar, PA 18915 (215) 997-1800 (Name, Address and Telephone Number of Perso

Other Listings
DE:RAB
Fintel data has been cited in the following publications:
Daily Mail Fox Business Business Insider Wall Street Journal The Washington Post Bloomberg Financial Times Globe and Mail
NASDAQ.com Reuters The Guardian Associated Press FactCheck.org Snopes Politifact
Federal Register The Intercept Forbes Fortune Magazine TheStreet Time Magazine Canadian Broadcasting Corporation International Business Times
Cambridge University Press Investopedia MarketWatch NY Daily News Entrepreneur Newsweek Barron's El Economista