BUFFALO, NY
ACV AUCTIONS INC.ACVA— Latest position per institution from SEC 13F filings
15
Institutional holders
136.55M
Total shares held
1.11B
Estimated value
6.83M
Avg. position size
VANGUARD GROUP INC
CIK 102909
Shares
15.52M
Value
124.45M
Filed
Dec 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
14.07M
Value
101.18M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
10.92M
Value
199.20M
Filed
Jun 30, 2024
ATREIDES MANAGEMENT, LP
CIK 1777813
Shares
9.90M
Value
71.20M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
7.47M
Value
53.73M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
7.38M
Value
53.04M
Filed
Jun 30, 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 1644956
Shares
7.21M
Value
30.58M
Filed
Mar 31, 2026
BROWN ADVISORY INC
CIK 1345929
Shares
6.92M
Value
49.78M
Filed
Jun 30, 2026
CRAMER ROSENTHAL MCGLYNN LLC
CIK 820743
Shares
6.01M
Value
43.22M
Filed
Jun 30, 2026
FRONTIER CAPITAL MANAGEMENT CO LLC
CIK 351173
Shares
5.81M
Value
41.80M
Filed
Jun 30, 2026
JENNISON ASSOCIATES LLC
CIK 53417
Shares
5.77M
Value
46.25M
Filed
Dec 31, 2025
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
CIK 912938
Shares
5.54M
Value
44.39M
Filed
Dec 31, 2025
PARADICE INVESTMENT MANAGEMENT LLC
CIK 1620275
Shares
5.02M
Value
36.11M
Filed
Jun 30, 2026
IRIDIAN ASSET MANAGEMENT LLC/CT
CIK 1033427
Shares
4.58M
Value
32.91M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
4.35M
Value
31.27M
Filed
Jun 30, 2026
SENVEST MANAGEMENT, LLC
CIK 1328785
Shares
4.28M
Value
30.74M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
4.17M
Value
29.95M
Filed
Jun 30, 2026
ROYCE & ASSOCIATES LP
CIK 906304
Shares
3.95M
Value
28.43M
Filed
Jun 30, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
3.88M
Value
27.90M
Filed
Jun 30, 2026
HARRIS ASSOCIATES L P
CIK 813917
Shares
3.80M
Value
37.71M
Filed
Sep 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | 102909 | 15.52M | 124.45M | Dec 31, 2025 |
| 2 | BLACKROCK, INC. | 2012383 | 14.07M | 101.18M | Jun 30, 2026 |
| 3 | BLACKROCK FINANCE, INC. | 1364742 | 10.92M | 199.20M | Jun 30, 2024 |
| 4 | ATREIDES MANAGEMENT, LP | 1777813 | 9.90M | 71.20M | Jun 30, 2026 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 7.47M | 53.73M | Jun 30, 2026 |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 7.38M | 53.04M | Jun 30, 2026 |
| 7 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1644956 | 7.21M | 30.58M | Mar 31, 2026 |
| 8 | BROWN ADVISORY INC | 1345929 | 6.92M | 49.78M | Jun 30, 2026 |
| 9 | CRAMER ROSENTHAL MCGLYNN LLC | 820743 | 6.01M | 43.22M | Jun 30, 2026 |
| 10 | FRONTIER CAPITAL MANAGEMENT CO LLC | 351173 | 5.81M | 41.80M | Jun 30, 2026 |
| 11 | JENNISON ASSOCIATES LLC | 53417 | 5.77M | 46.25M | Dec 31, 2025 |
| 12 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 912938 | 5.54M | 44.39M | Dec 31, 2025 |
| 13 | PARADICE INVESTMENT MANAGEMENT LLC | 1620275 | 5.02M | 36.11M | Jun 30, 2026 |
| 14 | IRIDIAN ASSET MANAGEMENT LLC/CT | 1033427 | 4.58M | 32.91M | Jun 30, 2026 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 4.35M | 31.27M | Jun 30, 2026 |
| 16 | SENVEST MANAGEMENT, LLC | 1328785 | 4.28M | 30.74M | Jun 30, 2026 |
| 17 | STATE STREET CORP | 93751 | 4.17M | 29.95M | Jun 30, 2026 |
| 18 | ROYCE & ASSOCIATES LP | 906304 | 3.95M | 28.43M | Jun 30, 2026 |
| 19 | D. E. SHAW & CO., INC. | 1009207 | 3.88M | 27.90M | Jun 30, 2026 |
| 20 | HARRIS ASSOCIATES L P | 813917 | 3.80M | 37.71M | Sep 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.