Acacia Research Corporation (ACTG) ownership: Top institutional holder: Starboard Value LP ($294.00M). Insider activity: Net Seller (2 buys, 18 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Starboard Value LP | 61123595.00 | $294.00M | 2026-03-31 |
| STATE STREET CORP | 3105041.00 | $14.94M | 2026-03-31 |
| DIMENSIONAL FUND ADVISORS LP | 2853889.00 | $13.73M | 2026-03-31 |
| BlackRock, Inc. | 2406367.00 | $11.57M | 2026-03-31 |
| BlackRock Fund Advisors | 1276175.00 | $8.29M | 2016-12-31 |
| VANGUARD GROUP INC | 2087925.00 | $7.81M | 2025-12-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1596121.00 | $7.68M | 2026-03-31 |
| RENAISSANCE TECHNOLOGIES LLC | 1407584.00 | $6.77M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-30 | |
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-23 | |
| Sell | null | 2026-06-05 | |
| Sell | null | 2026-06-05 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.