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These shares were sold in multiple transactions at prices ranging from $123.03 through $124.01. 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The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":11112.1061,"source":{"system":"sec-edgar","filing":"0001628280-25-054995","document":"wk-form4_1764795950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025054995/wk-form4_1764795950.xml","form_type":"4"}},{"id":982659,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":71601,"kind":"person","name":"McKnight John","position":1,"cik":"0001932069","reported_name":"McKnight John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Heavy Duty"}}],"security":"Common Stock","published_at":"2025-12-03T21:05:53.000Z","date":"2025-12-01","kind":"sale","planned":false,"acquired":false,"shares":3987,"price":130.595,"value":520682.265,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":12023.1061,"source":{"system":"sec-edgar","filing":"0001628280-25-054995","document":"wk-form4_1764795950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025054995/wk-form4_1764795950.xml","form_type":"4"}},{"id":982658,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":71601,"kind":"person","name":"McKnight John","position":1,"cik":"0001932069","reported_name":"McKnight John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Heavy Duty"}}],"security":"Common Stock","published_at":"2025-12-03T21:05:53.000Z","date":"2025-12-01","kind":"exercise","planned":false,"acquired":true,"shares":703,"price":91.28,"value":64169.84,"ownership":{"direct":true},"balance_after":16010.1061,"source":{"system":"sec-edgar","filing":"0001628280-25-054995","document":"wk-form4_1764795950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025054995/wk-form4_1764795950.xml","form_type":"4"}},{"id":982657,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":71601,"kind":"person","name":"McKnight John","position":1,"cik":"0001932069","reported_name":"McKnight John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Heavy Duty"}}],"security":"Common Stock","published_at":"2025-12-03T21:05:53.000Z","date":"2025-12-01","kind":"exercise","planned":false,"acquired":true,"shares":623,"price":96.36,"value":60032.28,"ownership":{"direct":true},"balance_after":15307.1061,"source":{"system":"sec-edgar","filing":"0001628280-25-054995","document":"wk-form4_1764795950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025054995/wk-form4_1764795950.xml","form_type":"4"}},{"id":982656,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":71601,"kind":"person","name":"McKnight John","position":1,"cik":"0001932069","reported_name":"McKnight John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Heavy Duty"}}],"security":"Common Stock","published_at":"2025-12-03T21:05:53.000Z","date":"2025-12-01","kind":"exercise","planned":false,"acquired":true,"shares":1950,"price":101.45,"value":197827.5,"ownership":{"direct":true},"balance_after":14684.1061,"source":{"system":"sec-edgar","filing":"0001628280-25-054995","document":"wk-form4_1764795950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025054995/wk-form4_1764795950.xml","form_type":"4"}},{"id":982655,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":71601,"kind":"person","name":"McKnight John","position":1,"cik":"0001932069","reported_name":"McKnight John","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Heavy Duty"}}],"security":"Common Stock","published_at":"2025-12-03T21:05:53.000Z","date":"2025-12-01","kind":"exercise","planned":false,"acquired":true,"shares":1356,"price":73.72,"value":99964.32,"ownership":{"direct":true},"balance_after":12734.1061,"source":{"system":"sec-edgar","filing":"0001628280-25-054995","document":"wk-form4_1764795950.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025054995/wk-form4_1764795950.xml","form_type":"4"}},{"id":1010167,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":65266,"kind":"person","name":"Hession David","position":1,"cik":"0001769146","reported_name":"Hession David","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and CFO"}}],"security":"Common Stock","published_at":"2025-11-03T21:22:43.000Z","date":"2025-10-31","kind":"sale","planned":false,"acquired":false,"shares":2858,"price":136.3292,"value":389628.8536,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.01 through $136.90. The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":5638.6363,"source":{"system":"sec-edgar","filing":"0001628280-25-048285","document":"wk-form4_1762204959.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025048285/wk-form4_1762204959.xml","form_type":"4"}},{"id":1010166,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":65266,"kind":"person","name":"Hession David","position":1,"cik":"0001769146","reported_name":"Hession David","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP and CFO"}}],"security":"Common Stock","published_at":"2025-11-03T21:22:43.000Z","date":"2025-10-31","kind":"sale","planned":false,"acquired":false,"shares":6515,"price":135.4151,"value":882229.3765,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.03 through $135.97. The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":8496.6363,"source":{"system":"sec-edgar","filing":"0001628280-25-048285","document":"wk-form4_1762204959.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/868780/000162828025048285/wk-form4_1762204959.xml","form_type":"4"}}],"next_cursor":"2025-11-03T21:22:43.000000Z,1010166"}