ACTG Acacia Research Corporation
Acacia Research Corporation (ACTG) Institutional Ownership
What the institutions did with ACTG last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| Starboard Value LP | 61.1M | 71.0% |
| STATE STREET CORP | 3.2M | 3.7% |
| DIMENSIONAL FUND ADVISORS LP | 2.9M | 3.4% |
| BlackRock, Inc. | 2.6M | 3.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | 1.7% |
| RENAISSANCE TECHNOLOGIES LLC | 1.4M | 1.6% |
| GOLDMAN SACHS GROUP INC | 1.2M | 1.4% |
| Krilogy Financial LLC | 1.1M | 1.3% |
| Peapod Lane Capital LLC | 994.8K | 1.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 900.8K | 1.0% |
| Pacific Ridge Capital Partners, LLC | 811.0K | 0.9% |
| Formidable Asset Management, LLC | 793.1K | 0.9% |
| AMERICAN CENTURY COMPANIES INC | 693.3K | 0.8% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 629.3K | 0.7% |
| AEGIS FINANCIAL CORP | 491.1K | 0.6% |
| Tidal Investments LLC | 424.2K | 0.5% |
| Empowered Funds, LLC | 366.0K | 0.4% |
| NORTHERN TRUST CORP | 289.8K | 0.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 289.4K | 0.3% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 288.5K | 0.3% |
| ACADIAN ASSET MANAGEMENT LLC | 263.9K | 0.3% |
| CITADEL ADVISORS LLC | 249.5K | 0.3% |
| AQR CAPITAL MANAGEMENT LLC | 236.4K | 0.3% |
| VANGUARD FIDUCIARY TRUST CO | 235.4K | 0.3% |
| MORGAN STANLEY | 213.1K | 0.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| GOLDMAN SACHS GROUP INC | Increased | 584.1K | 1.2M | +591.1K |
| BlackRock, Inc. | Increased | 2.4M | 2.6M | +190.9K |
| AMERICAN CENTURY COMPANIES INC | Increased | 511.4K | 693.3K | +181.9K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 81.7K | 236.4K | +154.7K |
| MARSHALL WACE, LLP | Sold Out | 116.3K | 0 | -116.3K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 1.6M | 1.5M | -110.9K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 155.5K | 263.9K | +108.4K |
| Peapod Lane Capital LLC | Reduced | 1.1M | 994.8K | -96.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 196.3K | 288.5K | +92.2K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Increased | 58.1K | 150.2K | +92.1K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.9M | 2.9M | +87.8K |
| MORGAN STANLEY | Reduced | 276.9K | 213.1K | -63.8K |
| JANE STREET GROUP, LLC | Reduced | 175.4K | 111.8K | -63.6K |
| STATE STREET CORP | Increased | 3.1M | 3.2M | +61.7K |
| Quantinno Capital Management LP | Increased | 44.6K | 106.1K | +61.5K |
| STATE OF WISCONSIN INVESTMENT BOARD | New | 0 | 56.5K | +56.5K |
| CITADEL ADVISORS LLC | Increased | 197.6K | 249.5K | +52.0K |
| RITHOLTZ WEALTH MANAGEMENT | Increased | 65.0K | 114.5K | +49.5K |
| Point72 Asset Management, L.P. | Reduced | 88.6K | 42.4K | -46.1K |
| Invesco Ltd. | Reduced | 76.6K | 30.5K | -46.1K |
| Formidable Asset Management, LLC | Reduced | 838.9K | 793.1K | -45.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 857.7K | 900.8K | +43.1K |
| NewEdge Advisors, LLC | Sold Out | 42.1K | 0 | -42.1K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 40.0K | 0 | -40.0K |
| OCCUDO QUANTITATIVE STRATEGIES LP | Sold Out | 34.9K | 0 | -34.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.