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These shares were sold in multiple transactions at prices ranging from $82.21 to $82.85. 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These shares were sold in multiple transactions at prices ranging from $81.20 to $82.17 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":102130,"source":{"system":"sec-edgar","filing":"0001209191-18-051384","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/868780/000120919118051384/doc4.xml","form_type":"4"}},{"id":3816459,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":159322,"kind":"person","name":"BARTON MATHIAS J","position":1,"cik":"0001204980","reported_name":"BARTON MATHIAS J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CEO"}}],"security":"Common Stock","published_at":"2018-09-14T20:34:05.000Z","date":"2018-09-13","kind":"sale","acquired":false,"shares":507,"price":82.2042,"value":41677.5294,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 6, 2018."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $81.20 to $82.00. 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These shares were sold in multiple transactions at prices ranging from $81.20 to $81.58. 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As a result, the amount of securities  beneficially owned following the reported transactions reported in Column 5 was understated by 158 shares in the Original Form 4 and in subsequent Forms 4 filed by the reporting person.  This amendment is being filed to report correctly the number of shares withheld and the total number of shares beneficially owned following the transactions reported in the Original Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"The number of shares withheld by the issuer upon the vesting of a restricted stock award to satisfy the reporting person's tax withholding obligations was overstated in the reporting person's Form 4 filed on February 14, 2017 (\"Original Form 4\") by 158 shares. As a result, the amount of securities  beneficially owned following the reported transactions reported in Column 5 was understated by 158 shares in the Original Form 4 and in subsequent Forms 4 filed by the reporting person.  This amendment is being filed to report correctly the number of shares withheld and the total number of shares beneficially owned following the transactions reported in the Original Form 4."}],"balance_after":127547,"source":{"system":"sec-edgar","filing":"0001209191-18-051091","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/868780/000120919118051091/doc4a.xml","form_type":"4/A","original_submission_date":"2017-02-14"}},{"id":4004344,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":159322,"kind":"person","name":"BARTON MATHIAS J","position":1,"cik":"0001204980","reported_name":"BARTON MATHIAS J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2018-03-09T18:09:24.000Z","date":"2018-03-07","kind":"grant","acquired":true,"shares":12160,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vests in four equal annual installments beginning on March 7, 2019, which is the first anniversary of the date of grant."}],"balance_after":12160,"derivative":{"exercise_price":72.55,"expiration_date":"2023-03-07","underlying":"Common Stock","underlying_shares":12160},"source":{"system":"sec-edgar","filing":"0001209191-18-018411","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/868780/000120919118018411/doc4.xml","form_type":"4"}},{"id":4004343,"issuer":{"id":4084,"kind":"organization","name":"Dorman Products, Inc.","symbol":"DORM"},"owners":[{"id":159322,"kind":"person","name":"BARTON MATHIAS J","position":1,"cik":"0001204980","reported_name":"BARTON MATHIAS J","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2018-03-09T18:09:24.000Z","date":"2018-03-07","kind":"tax_withholding","acquired":false,"shares":915,"price":72.55,"value":66383.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to satisfy Mr. Barton's tax withholding obligations. 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