287 institutions reported holding $1.96B of Acadian Asset Management Inc (BSIG) in SEC 13F filings for 2026-03-31. Largest institutional holders: PAULSON & CO. INC. ($421.4M), BlackRock, Inc. ($248.9M), JENNISON ASSOCIATES LLC ($110.0M), Empyrean Capital Partners, LP ($71.2M), STATE STREET CORP ($65.8M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | PAULSON & CO. INC. | $421.4M | 7.7M | Hold |
| 2 | BlackRock, Inc. | $248.9M | 4.6M | Trimmed |
| 3 | JENNISON ASSOCIATES LLC | $110.0M | 2.0M | Added |
| 4 | Empyrean Capital Partners, LP | $71.2M | 1.3M | Trimmed |
| 5 | STATE STREET CORP | $65.8M | 1.2M | Added |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $63.1M | 1.2M | New |
| 7 | DIMENSIONAL FUND ADVISORS LP | $49.2M | 904,549 | Trimmed |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | $48.1M | 883,909 | New |
| 9 | Impax Asset Management Group plc | $44.8M | 823,323 | Trimmed |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $40.7M | 747,822 | Added |
| 11 | Woodline Partners LP | $38.2M | 701,720 | Added |
| 12 | SOROS FUND MANAGEMENT LLC | $35.3M | 648,807 | Trimmed |
| 13 | SG Americas Securities, LLC | $32.9M | 603,683 | Added |
| 14 | Nuveen, LLC | $32.0M | 588,464 | Trimmed |
| 15 | FEDERATED HERMES, INC. | $30.9M | 568,320 | Added |
| 16 | MORGAN STANLEY | $29.3M | 537,643 | Added |
| 17 | TWO SIGMA INVESTMENTS, LP | $26.1M | 478,814 | Added |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $24.7M | 453,320 | Trimmed |
| 19 | Allspring Global Investments Holdings, LLC | $23.6M | 419,239 | Added |
| 20 | Invesco Ltd. | $22.5M | 412,702 | Trimmed |
| 21 | GW&K Investment Management, LLC | $20.5M | 375,977 | Trimmed |
| 22 | Systematic Alpha Investments, LLC | $20.1M | 370,108 | Hold |
| 23 | Azora Capital LP | $17.9M | 329,349 | New |
| 24 | JACOBS LEVY EQUITY MANAGEMENT, INC | $17.3M | 318,131 | Trimmed |
| 25 | Boston Trust Walden Corp | $15.3M | 281,604 | New |
Source: SEC Form 13F filings · as of 2026-03-31