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These shares were sold in multiple transactions at prices ranging from $12.96 to $13.88 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":766266,"source":{"system":"sec-edgar","filing":"0001628280-25-012603","document":"wk-form4_1741896731.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025012603/wk-form4_1741896731.xml","form_type":"4"}},{"id":1219495,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-06T21:42:34.000Z","date":"2025-03-04","kind":"tax_withholding","planned":false,"acquired":false,"shares":13398,"price":14.83,"value":198692.34,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Issuer to cover the tax liability upon the immediate vesting of the restricted stock unit granted and does not represent a discretionary sale by the reporting person."}],"balance_after":781266,"source":{"system":"sec-edgar","filing":"0001628280-25-010955","document":"wk-form4_1741297348.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025010955/wk-form4_1741297348.xml","form_type":"4"}},{"id":1219494,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-03-06T21:42:34.000Z","date":"2025-03-04","kind":"grant","planned":false,"acquired":true,"shares":34046,"price":14.83,"value":504902.18,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Grant of Restricted Stock Units issued pursuant of the Company's 2024 Target Bonus Program whereby targets defined by the Compensation Committee were deemed to be achieved by the Board of Directors for the fiscal year 2024.  The RSUs vested 100% upon grant on March 4, 2025."}],"balance_after":794664,"source":{"system":"sec-edgar","filing":"0001628280-25-010955","document":"wk-form4_1741297348.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025010955/wk-form4_1741297348.xml","form_type":"4"}},{"id":1267262,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2025-02-14T21:49:09.000Z","date":"2024-12-31","kind":"exercise","planned":false,"acquired":false,"shares":313166,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On December 31, 2024, which was the \"Final Conversion Date\" as defined in the Issuer's amended and restated certificate of incorporation, each share of the Issuer's Class B Common Stock automatically converted into one share of Class A Common Stock per the amended and restated certificate of incorporation."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On December 31, 2024, which was the \"Final Conversion Date\" as defined in the Issuer's amended and restated certificate of incorporation, each share of the Issuer's Class B Common Stock automatically converted into one share of Class A Common Stock per the amended and restated certificate of incorporation."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On December 31, 2024, which was the \"Final Conversion Date\" as defined in the Issuer's amended and restated certificate of incorporation, each share of the Issuer's Class B Common Stock automatically converted into one share of Class A Common Stock per the amended and restated certificate of incorporation."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":313166},"source":{"system":"sec-edgar","filing":"0001628280-25-005800","document":"wk-form4_1739569743.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025005800/wk-form4_1739569743.xml","form_type":"4"}},{"id":1267261,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-02-14T21:49:09.000Z","date":"2024-12-31","kind":"exercise","planned":false,"acquired":true,"shares":313166,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On December 31, 2024, which was the \"Final Conversion Date\" as defined in the Issuer's amended and restated certificate of incorporation, each share of the Issuer's Class B Common Stock automatically converted into one share of Class A Common Stock per the amended and restated certificate of incorporation."}],"balance_after":760618,"source":{"system":"sec-edgar","filing":"0001628280-25-005800","document":"wk-form4_1739569743.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025005800/wk-form4_1739569743.xml","form_type":"4"}},{"id":1280309,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-02-06T21:05:28.000Z","date":"2025-02-04","kind":"sale","planned":true,"acquired":false,"shares":15000,"price":20.63,"value":309450.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on September 9, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.11 to $20.88 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":447452,"source":{"system":"sec-edgar","filing":"0001628280-25-004251","document":"wk-form4_1738875921.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025004251/wk-form4_1738875921.xml","form_type":"4"}},{"id":1305168,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-01-10T21:11:38.000Z","date":"2025-01-07","kind":"sale","planned":true,"acquired":false,"shares":15000,"price":20.57,"value":308550.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares sold pursuant to a Rule 10b5-1 trading plan entered into on September 9, 2024."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.13 to $21.49 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":462452,"source":{"system":"sec-edgar","filing":"0001628280-25-001134","document":"wk-form4_1736543490.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828025001134/wk-form4_1736543490.xml","form_type":"4"}},{"id":1310535,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common 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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":"F5","text":"Includes shares previously reported as restricted stock units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"The number of shares reported in Column 9 of this Form 4 corrects an administrative error in the reporting of shares in the previous Form 4s filed on July 6, 2022 and May 17, 2023.   The July 6, 2022 Form 4 reported tax withholding of 1,222, and the correct withholding was 1,269.  The May 17, 2023 filing included a mathematical error that incorrectly showed 192,497 shares of Class B Common Stock were beneficially owned at that time instead of 190,447.  The number of shares beneficially owned today following the reported transaction that occurred on December 30, 2024 is 313,166 shares of Class B Common Stock."}],"balance_after":313166,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1319803,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-12-31T21:45:54.000Z","date":"2024-12-30","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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":322763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1319802,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-12-31T21:45:54.000Z","date":"2024-12-30","kind":"exercise","planned":true,"acquired":true,"shares":25000,"price":5.42,"value":135500.0,"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":347763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1319801,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-12-31T21:45:54.000Z","date":"2024-12-30","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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 September 14,2021, 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":0,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1319800,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-31T21:45:54.000Z","date":"2024-12-30","kind":"sale","planned":true,"acquired":false,"shares":32500,"price":21.65,"value":703625.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $21.12 to $21.99 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":490482,"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1319799,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-31T21:45:54.000Z","date":"2024-12-30","kind":"exercise","planned":true,"acquired":true,"shares":7500,"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":522982,"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1319798,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-12-31T21:45:54.000Z","date":"2024-12-30","kind":"exercise","planned":true,"acquired":true,"shares":25000,"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":515482,"source":{"system":"sec-edgar","filing":"0001628280-24-052646","document":"wk-form4_1735681548.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024052646/wk-form4_1735681548.xml","form_type":"4"}},{"id":1349336,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"exercise","planned":true,"acquired":false,"shares":7500,"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":322763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1349335,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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":330263,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1349334,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"exercise","planned":true,"acquired":true,"shares":25000,"price":5.42,"value":135500.0,"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":355263,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1349333,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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 September 14,2021, 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":25000,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1349332,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"sale","planned":true,"acquired":false,"shares":32500,"price":22.41,"value":728325.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $22.05 to $22.80 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 at each separate price within\nthe range set forth in this footnote."}],"balance_after":490482,"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1349331,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"exercise","planned":true,"acquired":true,"shares":7500,"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":522982,"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1349330,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-11-27T21:16:09.000Z","date":"2024-11-26","kind":"exercise","planned":true,"acquired":true,"shares":25000,"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":515482,"source":{"system":"sec-edgar","filing":"0001628280-24-049399","document":"wk-form4_1732742162.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024049399/wk-form4_1732742162.xml","form_type":"4"}},{"id":1384754,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"exercise","planned":true,"acquired":false,"shares":7500,"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":330263,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-043043","document":"wk-form4_1729197791.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024043043/wk-form4_1729197791.xml","form_type":"4"}},{"id":1384753,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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":337763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-043043","document":"wk-form4_1729197791.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024043043/wk-form4_1729197791.xml","form_type":"4"}},{"id":1384752,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"exercise","planned":true,"acquired":true,"shares":25000,"price":5.42,"value":135500.0,"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":362763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-043043","document":"wk-form4_1729197791.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024043043/wk-form4_1729197791.xml","form_type":"4"}},{"id":1384751,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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 September 14, 2021, 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":50000,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-043043","document":"wk-form4_1729197791.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024043043/wk-form4_1729197791.xml","form_type":"4"}},{"id":1384750,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"sale","planned":true,"acquired":false,"shares":32500,"price":18.79,"value":610675.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $18.37 to $19.01 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":490482,"source":{"system":"sec-edgar","filing":"0001628280-24-043043","document":"wk-form4_1729197791.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024043043/wk-form4_1729197791.xml","form_type":"4"}},{"id":1384749,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"exercise","planned":true,"acquired":true,"shares":7500,"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":522982,"source":{"system":"sec-edgar","filing":"0001628280-24-043043","document":"wk-form4_1729197791.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024043043/wk-form4_1729197791.xml","form_type":"4"}},{"id":1384748,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-10-17T20:43:18.000Z","date":"2024-10-15","kind":"exercise","planned":true,"acquired":true,"shares":25000,"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 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person"}],"balance_after":493941,"source":{"system":"sec-edgar","filing":"0001628280-24-042195","document":"wk-form4_1727990847.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024042195/wk-form4_1727990847.xml","form_type":"4"}},{"id":1391892,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common 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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":"F6","text":"Includes shares previously reported as restricted stock units."}],"balance_after":337763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":5644},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403568,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-18","kind":"exercise","planned":true,"acquired":true,"shares":5644,"price":5.42,"value":30590.48,"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":"shares","element":"transactionShares","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":343407,"derivative":{"underlying":"Class A Common Stock","underlying_shares":5644},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403567,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-18","kind":"exercise","planned":true,"acquired":false,"shares":5644,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"One-fourth (1/4th) of the shares subject to the option award vested on September 14, 2021, 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":75000,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":5644},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403566,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"exercise","planned":true,"acquired":false,"shares":7500,"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":337763,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403565,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"exercise","planned":true,"acquired":false,"shares":69356,"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":345263,"derivative":{"underlying":"Class A Common Stock","underlying_shares":69356},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403564,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"exercise","planned":true,"acquired":true,"shares":69356,"price":5.42,"value":375909.52,"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":"shares","element":"transactionShares","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":414619,"derivative":{"underlying":"Class A Common Stock","underlying_shares":69356},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403563,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"exercise","planned":true,"acquired":false,"shares":69356,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"One-fourth (1/4th) of the shares subject to the option award vested on September 14, 2021, 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":80644,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":69356},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403562,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-16","kind":"tax_withholding","planned":true,"acquired":false,"shares":2050,"price":19.95,"value":40897.5,"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":"shares","element":"transactionShares","label":"F5","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":"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":345263,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2050},"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403561,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-18","kind":"sale","planned":true,"acquired":false,"shares":5644,"price":20.45,"value":115419.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $20.39 to $20.53 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":503077,"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403560,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-18","kind":"exercise","planned":true,"acquired":true,"shares":5644,"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":508721,"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403559,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"sale","planned":true,"acquired":false,"shares":76856,"price":20.26,"value":1557102.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $19.60 to $20.49 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":503077,"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403558,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"exercise","planned":true,"acquired":true,"shares":7500,"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":579933,"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1403557,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-09-18T21:24:22.000Z","date":"2024-09-17","kind":"exercise","planned":true,"acquired":true,"shares":69356,"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":572433,"source":{"system":"sec-edgar","filing":"0001628280-24-040813","document":"wk-form4_1726694656.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024040813/wk-form4_1726694656.xml","form_type":"4"}},{"id":1431284,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-16T20:14:52.000Z","date":"2024-08-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":2050,"price":18.16,"value":37228.0,"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":"shares","element":"transactionShares","label":"F2","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":"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":"F3","text":"Includes shares previously reported as restricted stock units."}],"balance_after":347313,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2050},"source":{"system":"sec-edgar","filing":"0001628280-24-037553","document":"wk-form4_1723839286.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024037553/wk-form4_1723839286.xml","form_type":"4"}},{"id":1437822,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"exercise","planned":true,"acquired":false,"shares":7500,"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":349363,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1437821,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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":356863,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1437820,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"exercise","planned":true,"acquired":true,"shares":25000,"price":5.42,"value":135500.0,"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":381863,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1437819,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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 September 14,2021, 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":150000,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1437818,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"sale","planned":true,"acquired":false,"shares":32500,"price":15.19,"value":493675.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $14.90 to $15.44 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":503077,"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1437817,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"exercise","planned":true,"acquired":true,"shares":7500,"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":535577,"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1437816,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-08-08T20:28:42.000Z","date":"2024-08-06","kind":"exercise","planned":true,"acquired":true,"shares":25000,"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":528077,"source":{"system":"sec-edgar","filing":"0001628280-24-036181","document":"wk-form4_1723148914.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024036181/wk-form4_1723148914.xml","form_type":"4"}},{"id":1452559,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-07-17T20:30:49.000Z","date":"2024-07-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":2123,"price":17.99,"value":38192.77,"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":"shares","element":"transactionShares","label":"F2","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":"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":"F3","text":"Includes shares previously reported as restricted stock units."}],"balance_after":356863,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2123},"source":{"system":"sec-edgar","filing":"0001628280-24-032091","document":"wk-form4_1721248242.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024032091/wk-form4_1721248242.xml","form_type":"4"}},{"id":1456149,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-07-11T22:06:30.000Z","date":"2024-07-09","kind":"exercise","planned":true,"acquired":false,"shares":7500,"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":358986,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-031718","document":"wk-form4_1720735584.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031718/wk-form4_1720735584.xml","form_type":"4"}},{"id":1456148,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-07-11T22:06:30.000Z","date":"2024-07-09","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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":366486,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-031718","document":"wk-form4_1720735584.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031718/wk-form4_1720735584.xml","form_type":"4"}},{"id":1456147,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-07-11T22:06:30.000Z","date":"2024-07-09","kind":"exercise","planned":true,"acquired":true,"shares":25000,"price":5.42,"value":135500.0,"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":391486,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-031718","document":"wk-form4_1720735584.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031718/wk-form4_1720735584.xml","form_type":"4"}},{"id":1456146,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-07-11T22:06:30.000Z","date":"2024-07-09","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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 September 14,2021, 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":175000,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-031718","document":"wk-form4_1720735584.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031718/wk-form4_1720735584.xml","form_type":"4"}},{"id":1456145,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-07-11T22:06:30.000Z","date":"2024-07-09","kind":"sale","planned":true,"acquired":false,"shares":32500,"price":17.51,"value":569075.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Shares sold pursuant to a Rule 10b5-1 trading plan enter into on August 30, 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 $17.41 to $17.79 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":503077,"source":{"system":"sec-edgar","filing":"0001628280-24-031718","document":"wk-form4_1720735584.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031718/wk-form4_1720735584.xml","form_type":"4"}},{"id":1456144,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-07-11T22:06:30.000Z","date":"2024-07-09","kind":"exercise","planned":true,"acquired":true,"shares":7500,"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. 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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 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person"}],"balance_after":506536,"source":{"system":"sec-edgar","filing":"0001628280-24-031163","document":"wk-form4_1720040496.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031163/wk-form4_1720040496.xml","form_type":"4"}},{"id":1459883,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-07-03T21:01:42.000Z","date":"2024-07-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":4216,"price":17.5,"value":73780.0,"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":511455,"source":{"system":"sec-edgar","filing":"0001628280-24-031163","document":"wk-form4_1720040496.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024031163/wk-form4_1720040496.xml","form_type":"4"}},{"id":1475222,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA 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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":"F2","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":"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":"F3","text":"Includes shares previously reported as restricted stock units."}],"balance_after":366486,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2050},"source":{"system":"sec-edgar","filing":"0001628280-24-028794","document":"wk-form4_1718741843.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028794/wk-form4_1718741843.xml","form_type":"4"}},{"id":1480640,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-12","kind":"exercise","planned":true,"acquired":false,"shares":123700,"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":"F8","text":"Includes shares previously reported as restricted stock units."}],"balance_after":368536,"derivative":{"underlying":"Class A Common Stock","underlying_shares":123700},"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480639,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"exercise","planned":true,"acquired":false,"shares":244400,"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":"F8","text":"Includes shares previously reported as restricted stock units."}],"balance_after":492236,"derivative":{"underlying":"Class A Common Stock","underlying_shares":244400},"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480638,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"exercise","planned":true,"acquired":false,"shares":7500,"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":"F8","text":"Includes shares previously reported as restricted stock units."}],"balance_after":736636,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7500},"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480637,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"exercise","planned":true,"acquired":false,"shares":25000,"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":"F8","text":"Includes shares previously reported as restricted stock units."}],"balance_after":744136,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480636,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class B Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"exercise","planned":true,"acquired":true,"shares":25000,"price":5.42,"value":135500.0,"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":"F8","text":"Includes shares previously reported as restricted stock units."}],"balance_after":769136,"derivative":{"underlying":"Class A Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480635,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"exercise","planned":true,"acquired":false,"shares":25000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"One-fourth (1/4th) of the shares subject to the option award vested on September 14, 2021, 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":200000,"derivative":{"exercise_price":5.42,"expiration_date":"2030-10-26","underlying":"Class B Common Stock","underlying_shares":25000},"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480634,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-12","kind":"sale","planned":true,"acquired":false,"shares":123700,"price":18.66,"value":2308242.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"This sale of stock was for the purpose of covering the tax obligations and exercise price related to the Reporting Person's stock option exercise on June 3, 2024.  No proceeds will be received by the Reporting Person as a result of this sale."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.54 to $18.76 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":515671,"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480633,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-12","kind":"exercise","planned":true,"acquired":true,"shares":123700,"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":639371,"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480632,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"sale","planned":true,"acquired":false,"shares":244400,"price":18.13,"value":4430972.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"This sale of stock was for the purpose of covering the tax obligations and exercise price related to the Reporting Person's stock option exercise on June 3, 2024.  No proceeds will be received by the Reporting Person as a result of this sale."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.99 to $18.36 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":515671,"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}},{"id":1480631,"issuer":{"id":4862,"kind":"organization","name":"ACV Auctions Inc.","symbol":"ACVA"},"owners":[{"id":32112,"kind":"person","name":"ZERELLA WILLIAM","position":1,"cik":"0001493307","reported_name":"ZERELLA WILLIAM","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-06-13T20:08:38.000Z","date":"2024-06-11","kind":"exercise","planned":true,"acquired":true,"shares":244400,"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":760071,"source":{"system":"sec-edgar","filing":"0001628280-24-028042","document":"wk-form4_1718309306.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1493307/000162828024028042/wk-form4_1718309306.xml","form_type":"4"}}],"next_cursor":"2024-06-13T20:08:38.000000Z,1480631"}