ACV Auctions CEO George Chamoun's Stock Transactions and RSU Award

This Form 4 filing reports transactions by George Chamoun, Chief Executive Officer of ACV Auctions Inc. (ACVA), involving both stock dispositions and an award of restricted stock units. On April 1, 2026, Chamoun disposed of 33,405 shares of common stock through three separate transactions at $4.27 per share, totaling approximately $142,639. These dispositions were not discretionary sales but rather shares withheld by the company to cover tax liabilities upon the vesting of time-based restricted stock units. The following day, on April 2, 2026, Chamoun was awarded 500,221 restricted stock units (RSUs) with a zero cost basis. These RSUs will vest in twelve substantially equal quarterly installments beginning July 1, 2026, contingent on Chamoun's continued service with the company. Following these transactions, Chamoun's total direct holdings increased to 3,419,793 shares of ACV Auctions common stock.