Acadian Asset Management Inc (AAMI)
Who owns Acadian Asset Management Inc (AAMI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 83.0% of the shares are freely tradable; institutional investors hold 98.8%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Paulson & Company Inc | 21.73 | 7,743,282 | +0.0 | 03/31/2026 |
| BlackRock Inc | 12.84 | 4,574,232 | -1.7 | 03/31/2026 |
| Vanguard Group Inc | 6.55 | 2,335,363 | -0.6 | 12/31/2025 |
| Jennison Associates LLC | 5.68 | 2,022,207 | +5.9 | 03/31/2026 |
| Empyrean Capital Partners, LP | 3.67 | 1,308,190 | -6.9 | 03/31/2026 |
| State Street Corp | 3.39 | 1,209,440 | +0.3 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.25 | 1,158,887 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 2.54 | 904,549 | -0.5 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 2.48 | 883,909 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 4.50 | 1,601,615 | +0.0 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.