ACV Auctions Inc. (ACVA) Institutional Ownership

Ownership Summary

A total of 175 institutions have reported a stake in ACV Auctions Inc. (NYSE:ACVA) as of December 2025, according to recent 13F filings with the SEC.

• The collective stake of institutional investors in ACV Auctions moved to 68.7% in December 2025, a shift down from the 99.4% reported for September 2025.
• Quarterly data indicates a 10.70% shift in institutional share volume, and the annual owner count reflects a decrease of 29.44%.
• Of these 175 institutional investors, 109 increased their holdings in ACV Auctions, while 44 of them reduced positions, and 22 investors maintained their exposure.
• The total number of shares held by institutions in ACV Auctions increased to 120.11Mn as of December 2025, a net change of up by 11.61Mn shares quarter on quarter, and down 44.37Mn shares year over year.
• With 15.52Mn shares, VANGUARD GROUP INC commands the largest institutional position in ACV Auctions as of December 31, 2025, equating to 8.88% of the company.
• Among the most significant buyers of ACV Auctions during December 2025 were Sunriver Management LLC (2.96Mn), Walleye Capital LLC (2.65Mn), Arvin Capital Management LP (1.68Mn), BANK OF MONTREAL /CAN/ (1.45Mn), CRAMER ROSENTHAL MCGLYNN LLC (1.32Mn).
• Leading sellers of ACV Auctions stock in December 2025 included WASATCH ADVISORS LP (5.62Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (1.11Mn), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (580.02K), DIMENSIONAL FUND ADVISORS LP (532.01K), SEI INVESTMENTS CO (521.89K).
• The top 10 institutional holders of ACV Auctions for the quarter ending December 2025 included VANGUARD GROUP INC (15.52Mn), BlackRock, Inc. (13.04Mn), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (10.89Mn), JENNISON ASSOCIATES LLC (5.77Mn), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (5.54Mn), CRAMER ROSENTHAL MCGLYNN LLC (4.26Mn), GEODE CAPITAL MANAGEMENT, LLC (3.95Mn), STATE STREET CORP (3.85Mn), JPMORGAN CHASE & CO (3.39Mn), Senvest Management, LLC (3.24Mn).