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There was no change to any rights related to the stock."},{"field":"shares","element":"transactionShares","label":"F3","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":597805,"source":{"system":"sec-edgar","filing":"0001628280-25-034341","document":"wk-form4_1751581183.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828025034341/wk-form4_1751581183.xml","form_type":"4"}},{"id":1092656,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2025-07-03T22:19:51.000Z","date":"2025-07-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":4487,"price":16.48,"value":73945.76,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"The company's stock previously referred to as Class A Common Stock is now referred to as Common Stock following changes made to the company's articles of incorporation. 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Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes shares previously reported as restricted stock 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Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares previously reported as restricted stock units."}],"balance_after":102779,"derivative":{"underlying":"Class A Common Stock","underlying_shares":46824},"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1408755,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-12T22:49:26.000Z","date":"2024-09-10","kind":"exercise","planned":true,"acquired":true,"shares":46824,"price":2,"value":93648.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares previously reported as restricted stock units."}],"balance_after":149603,"derivative":{"underlying":"Class A Common Stock","underlying_shares":46824},"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1408754,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-09-12T22:49:26.000Z","date":"2024-09-10","kind":"exercise","planned":true,"acquired":false,"shares":46824,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"One-fourth (1/4th) of the shares subject to the option award vested on January 22, 2020, and thereafter one-forty-eighth of the shares subject to the option award vested monthly, subject to the Reporting Person's continuous service."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"The derivative securities beneficially owned as reported in the prior Form 4 was 46,823, but it should have been 46,824 because the derivative securities beneficially owned by the Reporting Person in their original Form 3 was one share less than it should have been at that time, and this form corrects such error that was inadvertently made."}],"balance_after":0,"derivative":{"exercise_price":2,"expiration_date":"2029-03-05","underlying":"Class B Common Stock","underlying_shares":46824},"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1408753,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-12T22:49:26.000Z","date":"2024-09-10","kind":"exercise","planned":true,"acquired":false,"shares":72867,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares previously reported as restricted stock units."}],"balance_after":102779,"derivative":{"underlying":"Class A Common Stock","underlying_shares":72867},"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1408752,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-12T22:49:26.000Z","date":"2024-09-10","kind":"sale","planned":true,"acquired":false,"shares":154324,"price":19.19,"value":2961477.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on May 24, 2024"},{"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 $18.95 to $19.40 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares at each separate price within the range set forth in this footnote."}],"balance_after":432457,"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1408751,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-12T22:49:26.000Z","date":"2024-09-10","kind":"exercise","planned":true,"acquired":true,"shares":46824,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":586781,"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1408750,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-12T22:49:26.000Z","date":"2024-09-10","kind":"exercise","planned":true,"acquired":true,"shares":72867,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":539957,"source":{"system":"sec-edgar","filing":"0001628280-24-040272","document":"wk-form4_1726181360.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024040272/wk-form4_1726181360.xml","form_type":"4"}},{"id":1422049,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-26","kind":"exercise","planned":true,"acquired":false,"shares":6980,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes shares previously reported as restricted stock units."}],"balance_after":175646,"derivative":{"underlying":"Class A Common Stock","underlying_shares":6980},"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422048,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"exercise","planned":true,"acquired":false,"shares":60954,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes shares previously reported as restricted stock units."}],"balance_after":182626,"derivative":{"underlying":"Class A Common Stock","underlying_shares":60954},"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422047,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"exercise","planned":true,"acquired":false,"shares":46823,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":243580,"derivative":{"underlying":"Class A Common Stock","underlying_shares":46823},"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422046,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"exercise","planned":true,"acquired":true,"shares":46823,"price":2,"value":93646.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes shares previously reported as restricted stock units."}],"balance_after":290403,"derivative":{"underlying":"Class A Common Stock","underlying_shares":46823},"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422045,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"exercise","planned":true,"acquired":false,"shares":46823,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"One-fourth (1/4th) of the shares subject to the option award vested on January 22, 2020, and thereafter one-forty-eighth of the shares subject to the option award vested monthly, subject to the Reporting Person's continuous service."}],"balance_after":46823,"derivative":{"exercise_price":2,"expiration_date":"2029-03-06","underlying":"Class B Common Stock","underlying_shares":46823},"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422044,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-26","kind":"sale","planned":true,"acquired":false,"shares":8395,"price":19.21,"value":161267.95,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on May 24, 2024"},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.96 to $19.31 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares at each separate price within the range set forth in this footnote."}],"balance_after":467090,"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422043,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-26","kind":"exercise","planned":true,"acquired":true,"shares":6980,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":475485,"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422042,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"sale","planned":true,"acquired":false,"shares":145928,"price":18.71,"value":2730312.88,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on May 24, 2024"},{"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 $18.22 to $18.96 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares at each separate price within the range set forth in this footnote."}],"balance_after":468505,"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422041,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"exercise","planned":true,"acquired":true,"shares":60954,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":614433,"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1422040,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-27T20:37:06.000Z","date":"2024-08-23","kind":"exercise","planned":true,"acquired":true,"shares":46823,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":553479,"source":{"system":"sec-edgar","filing":"0001628280-24-038544","document":"wk-form4_1724791020.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024038544/wk-form4_1724791020.xml","form_type":"4"}},{"id":1460304,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-07-03T21:06:26.000Z","date":"2024-07-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":11846,"price":17.5,"value":207305.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes shares previously reported as restricted stock units."}],"balance_after":243580,"derivative":{"underlying":"Class A Common Stock","underlying_shares":11846},"source":{"system":"sec-edgar","filing":"0001628280-24-031174","document":"wk-form4_1720040780.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024031174/wk-form4_1720040780.xml","form_type":"4"}},{"id":1460303,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common 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shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person"}],"balance_after":517525,"source":{"system":"sec-edgar","filing":"0001628280-24-031174","document":"wk-form4_1720040780.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024031174/wk-form4_1720040780.xml","form_type":"4"}},{"id":1495310,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-06-03T21:47:56.000Z","date":"2024-05-28","kind":"grant","planned":false,"acquired":true,"shares":60912,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The PSUs will vest in one-third installments on each of July 1, 2025, 2026 and 2027, or later upon the date on or prior to July 1, 2027 that the Registrant's Class A Common Stock achieves a specified average price, as measured over a 30- trading day period, subject to the Reporting Person's continuous service through the relevant vesting 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restricted stock unit (\"RSU\") award.  The RSUs will vest in sixteen (16) substantially equal installments beginning July 1, 2024, subject to the Reporting Person's continuous service through each such date."}],"balance_after":462083,"source":{"system":"sec-edgar","filing":"0001628280-24-025835","document":"wk-form4_1717102267.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024025835/wk-form4_1717102267.xml","form_type":"4"}},{"id":1546856,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-04-05T20:12:45.000Z","date":"2024-04-04","kind":"exercise","planned":true,"acquired":false,"shares":13399,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units"}],"balance_after":255426,"derivative":{"underlying":"Class A Common Stock","underlying_shares":13399},"source":{"system":"sec-edgar","filing":"0001628280-24-015040","document":"wk-form4_1712347955.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024015040/wk-form4_1712347955.xml","form_type":"4"}},{"id":1546855,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-04-05T20:12:45.000Z","date":"2024-04-03","kind":"exercise","planned":true,"acquired":false,"shares":108342,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units"}],"balance_after":268825,"derivative":{"underlying":"Class A Common Stock","underlying_shares":108342},"source":{"system":"sec-edgar","filing":"0001628280-24-015040","document":"wk-form4_1712347955.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024015040/wk-form4_1712347955.xml","form_type":"4"}},{"id":1546854,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-05T20:12:45.000Z","date":"2024-04-04","kind":"sale","planned":true,"acquired":false,"shares":13399,"price":18.55,"value":248551.45,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan into on September 15, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.88 to $18.92 inclusive. The Reporting Person undertakes to\nprovide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin the range set forth in this footnote."}],"balance_after":321475,"source":{"system":"sec-edgar","filing":"0001628280-24-015040","document":"wk-form4_1712347955.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024015040/wk-form4_1712347955.xml","form_type":"4"}},{"id":1546853,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-05T20:12:45.000Z","date":"2024-04-04","kind":"exercise","planned":true,"acquired":true,"shares":13399,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":334874,"source":{"system":"sec-edgar","filing":"0001628280-24-015040","document":"wk-form4_1712347955.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024015040/wk-form4_1712347955.xml","form_type":"4"}},{"id":1546852,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-05T20:12:45.000Z","date":"2024-04-03","kind":"sale","planned":true,"acquired":false,"shares":108342,"price":18.4,"value":1993492.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan into on September 15, 2023."},{"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 $18.06 to $18.55 inclusive. The Reporting Person undertakes to\nprovide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price\nwithin the range set forth in this footnote."}],"balance_after":321475,"source":{"system":"sec-edgar","filing":"0001628280-24-015040","document":"wk-form4_1712347955.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024015040/wk-form4_1712347955.xml","form_type":"4"}},{"id":1546851,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-05T20:12:45.000Z","date":"2024-04-03","kind":"exercise","planned":true,"acquired":true,"shares":108342,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":429817,"source":{"system":"sec-edgar","filing":"0001628280-24-015040","document":"wk-form4_1712347955.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024015040/wk-form4_1712347955.xml","form_type":"4"}},{"id":1550078,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-04-03T21:36:27.000Z","date":"2024-04-02","kind":"exercise","planned":true,"acquired":false,"shares":78259,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":377167,"derivative":{"underlying":"Class A Common Stock","underlying_shares":78259},"source":{"system":"sec-edgar","filing":"0001628280-24-014697","document":"wk-form4_1712180178.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024014697/wk-form4_1712180178.xml","form_type":"4"}},{"id":1550077,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-04-03T21:36:27.000Z","date":"2024-04-01","kind":"tax_withholding","planned":true,"acquired":false,"shares":11846,"price":18.28,"value":216544.88,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":455426,"derivative":{"underlying":"Class A Common Stock","underlying_shares":11846},"source":{"system":"sec-edgar","filing":"0001628280-24-014697","document":"wk-form4_1712180178.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024014697/wk-form4_1712180178.xml","form_type":"4"}},{"id":1550076,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-03T21:36:27.000Z","date":"2024-04-02","kind":"sale","planned":true,"acquired":false,"shares":78259,"price":17.97,"value":1406314.23,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on September 15, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.66 to $18.26 inclusive. The Reporting Person undertakes toprovide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate pricewithin the range set forth in this footnote."}],"balance_after":321475,"source":{"system":"sec-edgar","filing":"0001628280-24-014697","document":"wk-form4_1712180178.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024014697/wk-form4_1712180178.xml","form_type":"4"}},{"id":1550075,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-03T21:36:27.000Z","date":"2024-04-02","kind":"exercise","planned":true,"acquired":true,"shares":78259,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":399734,"source":{"system":"sec-edgar","filing":"0001628280-24-014697","document":"wk-form4_1712180178.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024014697/wk-form4_1712180178.xml","form_type":"4"}},{"id":1550074,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-03T21:36:27.000Z","date":"2024-04-01","kind":"tax_withholding","planned":true,"acquired":false,"shares":6382,"price":18.28,"value":116662.96,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":321475,"source":{"system":"sec-edgar","filing":"0001628280-24-014697","document":"wk-form4_1712180178.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024014697/wk-form4_1712180178.xml","form_type":"4"}},{"id":1550073,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-04-03T21:36:27.000Z","date":"2024-04-01","kind":"tax_withholding","planned":true,"acquired":false,"shares":5470,"price":18.28,"value":99991.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":327857,"source":{"system":"sec-edgar","filing":"0001628280-24-014697","document":"wk-form4_1712180178.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000162828024014697/wk-form4_1712180178.xml","form_type":"4"}},{"id":1589344,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-06","kind":"exercise","planned":true,"acquired":false,"shares":9003,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":467272,"derivative":{"underlying":"Class A Common Stock","underlying_shares":9003},"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589343,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"exercise","planned":true,"acquired":false,"shares":112500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":476275,"derivative":{"underlying":"Class A Common Stock","underlying_shares":112500},"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589342,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"exercise","planned":true,"acquired":true,"shares":112500,"price":2,"value":225000.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":588775,"derivative":{"underlying":"Class A Common Stock","underlying_shares":112500},"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589341,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"exercise","planned":true,"acquired":false,"shares":112500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"One-fourth (1/4th) of the shares subject to the option award vested on January 22, 2020, and thereafter one-forty-eighth of the shares subject to the option award vest monthly, subject to the Reporting Person's continuous service."}],"balance_after":93646,"derivative":{"exercise_price":2,"expiration_date":"2029-03-06","underlying":"Class B Common Stock","underlying_shares":112500},"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589340,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"exercise","planned":true,"acquired":false,"shares":220997,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":476275,"derivative":{"underlying":"Class A Common Stock","underlying_shares":220997},"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589339,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-06","kind":"sale","planned":true,"acquired":false,"shares":9003,"price":18.67,"value":168086.01,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on September 15, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.50 to $18.79 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and\nExchange 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":333327,"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589338,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-06","kind":"exercise","planned":true,"acquired":true,"shares":9003,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":342330,"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589337,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"sale","planned":true,"acquired":false,"shares":333497,"price":18.62,"value":6209714.14,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on September 15, 2023."},{"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 $18.38 to $18.92 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and\nExchange 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":333327,"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589336,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"exercise","planned":true,"acquired":true,"shares":112500,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":666824,"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1589335,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-07T22:13:53.000Z","date":"2024-03-05","kind":"exercise","planned":true,"acquired":true,"shares":220997,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":554324,"source":{"system":"sec-edgar","filing":"0000950170-24-028153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024028153/ownership.xml","form_type":"4"}},{"id":1616184,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-02-27T21:37:25.000Z","date":"2024-02-23","kind":"grant","planned":false,"acquired":true,"shares":29197,"price":16.52,"value":482334.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of Restricted Stock Units vesting 100% on February 23, 2024, issued pursuant to the Company's 2023 Target Bonus Program whereby targets defined by the Compensation Committee were deemed to be achieved by the Board of Directors for fiscal year 2023."}],"balance_after":333327,"source":{"system":"sec-edgar","filing":"0000950170-24-021271","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024021271/ownership.xml","form_type":"4"}},{"id":1619760,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-02-26T23:09:04.000Z","date":"2024-02-22","kind":"exercise","planned":true,"acquired":false,"shares":200000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":697272,"derivative":{"underlying":"Class A Common Stock","underlying_shares":200000},"source":{"system":"sec-edgar","filing":"0000950170-24-020393","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024020393/ownership.xml","form_type":"4"}},{"id":1619759,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-02-26T23:09:04.000Z","date":"2024-02-23","kind":"tax_withholding","planned":true,"acquired":false,"shares":14906,"price":16.52,"value":246247.12,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":304130,"source":{"system":"sec-edgar","filing":"0000950170-24-020393","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024020393/ownership.xml","form_type":"4"}},{"id":1619758,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-02-26T23:09:04.000Z","date":"2024-02-22","kind":"sale","planned":true,"acquired":false,"shares":200000,"price":16.48,"value":3296000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on September 15, 2023."},{"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 $16.00 to $17.00 inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, 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":319036,"source":{"system":"sec-edgar","filing":"0000950170-24-020393","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024020393/ownership.xml","form_type":"4"}},{"id":1619757,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-02-26T23:09:04.000Z","date":"2024-02-22","kind":"exercise","planned":true,"acquired":true,"shares":200000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."}],"balance_after":519036,"source":{"system":"sec-edgar","filing":"0000950170-24-020393","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024020393/ownership.xml","form_type":"4"}},{"id":1688166,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2024-01-04T23:45:35.000Z","date":"2024-01-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":12427,"price":14.89,"value":185038.03,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes shares previously reported as restricted stock units."}],"balance_after":897272,"derivative":{"underlying":"Class A Common Stock","underlying_shares":12427},"source":{"system":"sec-edgar","filing":"0000950170-24-002157","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024002157/ownership.xml","form_type":"4"}},{"id":1688165,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-01-04T23:45:35.000Z","date":"2024-01-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":6382,"price":14.89,"value":95027.98,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":319036,"source":{"system":"sec-edgar","filing":"0000950170-24-002157","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024002157/ownership.xml","form_type":"4"}},{"id":1688164,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2024-01-04T23:45:35.000Z","date":"2024-01-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":5470,"price":14.89,"value":81448.3,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 164 shares acquired pursuant to the Company's 2021 Employee Stock Purchase Plan (\"ESPP\") for the purchase period of 6/1/2023 to 11/30/2023."}],"balance_after":325418,"source":{"system":"sec-edgar","filing":"0000950170-24-002157","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000095017024002157/ownership.xml","form_type":"4"}},{"id":1765488,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2023-10-04T22:25:43.000Z","date":"2023-10-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":11846,"price":15.05,"value":178282.3,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes shares previously reported as restricted stock units."}],"balance_after":909699,"derivative":{"underlying":"Class A Common Stock","underlying_shares":11846},"source":{"system":"sec-edgar","filing":"0001209191-23-052091","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123052091/doc4.xml","form_type":"4"}},{"id":1765487,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2023-10-04T22:25:43.000Z","date":"2023-10-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":6382,"price":15.05,"value":96049.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":330724,"source":{"system":"sec-edgar","filing":"0001209191-23-052091","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123052091/doc4.xml","form_type":"4"}},{"id":1765486,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2023-10-04T22:25:43.000Z","date":"2023-10-02","kind":"tax_withholding","planned":false,"acquired":false,"shares":5471,"price":15.05,"value":82338.55,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares were withheld by the Issuer to cover the tax liability upon the vesting of a time-based restricted stock unit previously granted, and does not represent a discretionary sale by the reporting person."}],"balance_after":337106,"source":{"system":"sec-edgar","filing":"0001209191-23-052091","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123052091/doc4.xml","form_type":"4"}},{"id":1781128,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2023-09-14T20:34:33.000Z","date":"2023-09-12","kind":"exercise","planned":true,"acquired":false,"shares":50000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":921545,"derivative":{"underlying":"Class A Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001209191-23-049436","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123049436/doc4.xml","form_type":"4"}},{"id":1781127,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class B Common Stock","published_at":"2023-09-14T20:34:33.000Z","date":"2023-09-12","kind":"exercise","planned":true,"acquired":true,"shares":50000,"price":2,"value":100000.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Class B Common Stock is convertible at any time at the option of the reporting person into one share of Class A Common Stock. Each share of Class B Common Stock will convert automatically into shares of Class A common stock, on a one-to-one basis, upon the following: (1) the sale or transfer of such share of Class B Common Stock, subject to certain exceptions specified in the Issuer's amended and restated certificate of incorporation; (2) the death of the reporting person; and (3) the final conversion date, defined as the earlier of (a) the last trading day of the fiscal quarter immediately following the tenth anniversary of the effective date of the Issuer's tenth amended and restated certificate of incorporation; (b) the last trading day of the fiscal quarter during which the then-outstanding shares of Class B Common Stock first represent less than 5% of the aggregate number of then-outstanding shares of Class A Common Stock and Class B Common Stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes shares previously reported as restricted stock units."}],"balance_after":971545,"derivative":{"underlying":"Class A Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001209191-23-049436","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123049436/doc4.xml","form_type":"4"}},{"id":1781126,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2023-09-14T20:34:33.000Z","date":"2023-09-12","kind":"exercise","planned":true,"acquired":false,"shares":50000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"One-fourth (1/4th) of the shares subject to the option award vested on January 22, 2020, and thereafter one-forty-eighth of the shares subject to the option award vest monthly, subject to the Reporting Person's continuous service."}],"balance_after":206146,"derivative":{"exercise_price":2,"expiration_date":"2029-03-05","underlying":"Class B Common Stock","underlying_shares":50000},"source":{"system":"sec-edgar","filing":"0001209191-23-049436","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123049436/doc4.xml","form_type":"4"}},{"id":1781125,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32174,"kind":"person","name":"Mehta Vikas","position":1,"cik":"0001852328","reported_name":"Mehta Vikas","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2023-09-14T20:34:33.000Z","date":"2023-09-12","kind":"sale","planned":true,"acquired":false,"shares":50000,"price":16.21,"value":810500.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on 2/24/2023."},{"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 $16.03 to $16.38 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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":342577,"source":{"system":"sec-edgar","filing":"0001209191-23-049436","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1852328/000120919123049436/doc4.xml","form_type":"4"}}],"next_cursor":"2023-09-14T20:34:33.000000Z,1781125"}