Acacia Research Corporation (ACTG)
Who owns Acacia Research Corporation (ACTG)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 35.0% of the shares are freely tradable; institutional investors hold 88.6%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Starboard Value LP | 63.28 | 61,123,595 | +0.0 | 03/31/2026 |
| State Street Corp | 3.21 | 3,105,041 | -1.3 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 2.95 | 2,853,889 | +3.4 | 03/31/2026 |
| BlackRock Inc | 2.49 | 2,406,367 | +1.8 | 03/31/2026 |
| Vanguard Group Inc | 2.16 | 2,087,925 | -8.5 | 12/31/2025 |
| Vanguard Capital Management, LLC | 1.65 | 1,596,121 | +0.0 | 03/31/2026 |
| Renaissance Technologies Corp | 1.46 | 1,407,584 | +0.9 | 03/31/2026 |
| Krilogy Advisors LLC | 1.17 | 1,127,487 | -9.3 | 03/31/2026 |
| Peapod Lane Capital LLC | 1.13 | 1,091,336 | +29.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 1.21 | 1,164,521 | +0.0 | 04/30/2026 |
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.