X0407 4 2023-06-09 0 0001637873 ACV Auctions Inc. ACVA 0001655213 Bessemer Venture Partners IX L.P. C/O BESSEMER VENTURE PARTNERS 1865 PALMER AVE., SUITE 104 LARCHMONT NY 10538 0 0 1 0 0001624149 Bessemer Venture Partners IX Institutional L.P. C/O BESSEMER VENTURE PARTNERS 1865 PALMER AVE., SUITE 104 LARCHMONT NY 10538 0 0 1 0 0001772240 15 Angels III LLC C/O BESSEMER VENTURE PARTNERS 1865 PALMER AVENUE, SUITE 104 LARCHMONT NY 10538 0 0 1 0 0001655219 Deer IX & Co. L.P. C/O BESSEMER VENTURE PARTNERS 1865 PALMER AVE., SUITE 104 LARCHMONT NY 10538 0 0 1 0 0001655220 Deer IX & Co. Ltd. C/O BESSEMER VENTURE PARTNERS 1865 PALMER AVE., SUITE 104 LARCHMONT NY 10538 0 0 1 0 0 Class A Common Stock 2023-06-09 4 S 0 92405 18.22 D 232976 I See footnote Class A Common Stock 2023-06-12 4 S 0 83473 18.07 D 149503 I See footnote Class A Common Stock 2023-06-13 4 S 0 74552 18.09 D 74951 I See footnote Class B Common Stock Class B Common Stock 0 12851306 I See footnotes Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date. On June 9, 2023, the Bessemer Venture Partners IX L.P. ("BVP IX"), Bessemer Venture Partners IX Institutional L.P. ("BVP IX Inst"), and 15 Angels III LLC. ("15 Angels" and together with BVP IX and BVP IX Inst, the "BVP IX Funds") sold 50,836 shares, 40,727 shares, and 842 shares, of Class A Common Stock of ACV Auctions, Inc., respectively, at a weighted average price of $18.22. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.58. 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 ranges set forth in this footnote. Deer IX & Co. Ltd. ("Deer Ltd.") is the general partner of Deer IX & Co. L.P. ("Deer L.P."), which is the general partner of the BVP IX Funds. Deer Ltd. and Deer L.P. disclaim beneficial ownership of the securities held by the BVP IX Funds, and this report shall not be deemed an admission that Deer Ltd. and Deer L.P. are the beneficial owners of such securities, except to the extent of their pecuniary interest therein, if any, by virtue of their direct and indirect general partner interests in the BVP IX Funds. After the June 6 transaction, BVP IX, BVP IX Inst, and 15 Angels own 128,169 shares, 102,684 shares and 2,123 shares, respectively, of Class A Common Stock. On June 12, 2023, the BVP IX, BVP IX Inst, and 15 Angels sold 45,922 shares, 36,790 shares, and 761 shares, of Class A Common Stock of ACV Auctions, Inc., respectively, at a weighted average price of $18.07. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.17. 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 ranges set forth in this footnote. After the June 12 transaction, BVP IX, BVP IX Inst, and 15 Angels own 82,247 shares, 65,894 shares and 1,362 shares, respectively, of Class A Common Stock. On June 13, 2023, the BVP IX, BVP IX Inst, and 15 Angels sold 41,564 shares, 32,299 shares, and 689 shares, of Class A Common Stock of ACV Auctions, Inc., respectively, at a weighted average price of $18.09. These shares were sold in multiple transactions at prices ranging from $18.00 to $18.17. 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 ranges set forth in this footnote. After the June 8 transaction, BVP IX, BVP IX Inst, and 15 Angels own 40,683 shares, 33,595 shares and 673 shares, respectively, of Class A Common Stock. After the reported transaction, BVP IX, BVP IX Inst, and 15 Angels own 7,070,017 shares, 5,664,160 shares and 117,129 shares, respectively, of Class B Common Stock. /s/ Scott Ring, General Counsel, Deer IX & Co. Ltd., the General Partner of Deer IX & Co. L.P., the General Partner of Bessemer Venture Partners IX L.P. 2023-06-13 /s/ Scott Ring, General Counsel, Deer IX & Co. Ltd., the General Partner of Deer IX & Co. L.P., the General Partner of Bessemer Venture Partners IX Institutional L.P. 2023-06-13 /s/ Scott Ring, Authorized Person, 15 Angels III LLC 2023-06-13 /s/ Scott Ring, General Counsel, Deer IX & Co. Ltd., the General Partner of Deer IX & Co. L.P. 2023-06-13 /s/ Scott Ring, General Counsel, Deer IX & Co. Ltd. 2023-06-13