ACACIA RESEARCH CORP - ACTG
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Starboard Value LP | History | No change | 61,123,595 | 294,004 | 6.43% | 4.33% | 1 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| STATE STREET CORP | History | Reduced | 3,105,041 | 14,935 | 0.0% | 0.0% | 2 | -40,940 | -1.3% | Q1 2026 | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 2,853,889 | 13,727 | 0.0% | 0.0% | 3 | +95,089 | 3.45% | Q1 2026 | May 07, 2026 |
| BlackRock, Inc. | History | Added to | 2,406,367 | 11,574 | 0.0% | 0.0% | 4 | +42,520 | 1.8% | Q1 2026 | May 13, 2026 |
| VANGUARD GROUP INC | History | No change | 2,087,925 | 7,808 | 0.0% | 0.0% | 5 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 1,596,121 | 7,677 | 0.0% | — | 6 | +1,596,121 | New | Q1 2026 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 1,407,584 | 6,770 | 0.01% | 0.01% | 7 | +12,284 | 0.88% | Q1 2026 | May 14, 2026 |
| Krilogy Financial LLC | History | Reduced | 1,127,487 | 5,626 | 0.18% | 0.17% | 8 | -115,926 | -9.32% | Q1 2026 | Apr 17, 2026 |
| Peapod Lane Capital LLC | History | Added to | 1,091,336 | 5,259 | 4.31% | 2.74% | 9 | +245,382 | 29.01% | Q1 2026 | May 01, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 857,719 | 4,126 | 0.0% | 0.0% | 10 | +11,412 | 1.35% | Q1 2026 | May 15, 2026 |
| Pacific Ridge Capital Partners, LLC | History | Added to | 817,242 | 3,930 | 0.85% | 0.67% | 11 | +6,918 | 0.85% | Q1 2026 | May 11, 2026 |
| Formidable Asset Management, LLC | History | Reduced | 838,869 | 3,726 | 0.58% | 0.45% | 12 | -31,962 | -3.67% | Q1 2026 | Apr 22, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Added to | 603,510 | 2,902 | 0.06% | 0.03% | 13 | +161,624 | 36.58% | Q1 2026 | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 584,102 | 2,809 | 0.0% | 0.0% | 14 | +275,110 | 89.03% | Q1 2026 | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Added to | 511,374 | 2,459 | 0.0% | 0.0% | 15 | +18,335 | 3.72% | Q1 2026 | May 15, 2026 |
| AEGIS FINANCIAL CORP | History | New | 491,086 | 2,362 | 0.41% | — | 16 | +491,086 | New | Q1 2026 | May 13, 2026 |
| Tidal Investments LLC | History | No change | 437,428 | 2,104 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Empowered Funds, LLC | History | New | 340,210 | 1,636 | 0.01% | — | 18 | +340,210 | New | Q1 2026 | May 14, 2026 |
| MORGAN STANLEY | History | Reduced | 276,902 | 1,331 | 0.0% | 0.0% | 19 | -166,361 | -37.53% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | Added to | 269,647 | 1,297 | 0.0% | 0.0% | 20 | +26,708 | 10.99% | Q1 2026 | May 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | New | 261,909 | 1,259 | 0.0% | — | 21 | +261,909 | New | Q1 2026 | May 08, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 232,871 | 1,120 | 0.0% | 0.0% | 22 | -121,356 | -34.26% | Q1 2026 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 221,379 | 1,064 | 0.0% | — | 23 | +221,379 | New | Q1 2026 | May 08, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 208,096 | 1,000 | 0.0% | 0.0% | 24 | +68,889 | 49.49% | Q1 2026 | May 15, 2026 |
| FRANKLIN RESOURCES INC | History | New | 185,288 | 891 | 0.0% | — | 25 | +185,288 | New | Q1 2026 | May 13, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 175,411 | 843 | 0.0% | 0.0% | 26 | +122,787 | 233.33% | Q1 2026 | May 12, 2026 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | History | No change | 166,672 | 801 | 0.12% | 0.1% | 27 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | New | 155,523 | 744 | 0.0% | — | 28 | +155,523 | New | Q1 2026 | May 13, 2026 |
| Marquette Asset Management, LLC | History | Added to | 149,408 | 718 | 0.11% | 0.05% | 29 | +56,171 | 60.25% | Q1 2026 | Apr 23, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 115,856 | 560 | 0.0% | 0.0% | 30 | -24,181 | -17.27% | Q1 2026 | May 13, 2026 |
| MARSHALL WACE, LLP | History | Added to | 116,289 | 559 | 0.0% | 0.0% | 31 | +81,962 | 238.77% | Q1 2026 | May 14, 2026 |
| UBS Group AG | History | Reduced | 116,072 | 558 | 0.0% | 0.0% | 32 | -7,968 | -6.42% | Q1 2026 | May 05, 2026 |
| Bank of New York Mellon Corp | History | Reduced | 112,430 | 540 | 0.0% | 0.0% | 33 | -8,898 | -7.33% | Q1 2026 | May 05, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Reduced | 104,719 | 503 | 0.0% | 0.0% | 34 | -10,246 | -8.91% | Q1 2026 | May 15, 2026 |
| Capital Wealth Alliance, LLC | History | No change | 103,970 | 500 | 0.23% | 0.18% | 35 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Point72 Asset Management, L.P. | History | New | 88,552 | 425 | 0.0% | — | 36 | +88,552 | New | Q1 2026 | May 15, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Added to | 81,708 | 393 | 0.0% | 0.0% | 37 | +28,846 | 54.57% | Q1 2026 | May 15, 2026 |
| Invesco Ltd. | History | Reduced | 76,583 | 368 | 0.0% | 0.0% | 38 | -560 | -0.73% | Q1 2026 | May 12, 2026 |
| FMR LLC | History | Added to | 75,760 | 364 | 0.0% | 0.0% | 39 | +846 | 1.13% | Q1 2026 | May 15, 2026 |
| GatePass Capital, LLC | History | Reduced | 75,500 | 363 | 0.17% | 0.19% | 40 | -24,300 | -24.35% | Q1 2026 | May 06, 2026 |
| RITHOLTZ WEALTH MANAGEMENT | History | New | 64,978 | 312 | 0.01% | — | 41 | +64,978 | New | Q1 2026 | Apr 20, 2026 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | History | New | 58,060 | 279 | 0.0% | — | 42 | +58,060 | New | Q1 2026 | May 13, 2026 |
| Cornerstone Investment Partners, LLC | History | New | 55,124 | 265 | 0.01% | — | 43 | +55,124 | New | Q1 2026 | May 08, 2026 |
| Nuveen, LLC | History | Reduced | 48,219 | 231 | 0.0% | 0.0% | 44 | -9,114 | -15.9% | Q1 2026 | Apr 30, 2026 |
| Quantinno Capital Management LP | History | New | 44,618 | 214 | 0.0% | — | 45 | +44,618 | New | Q1 2026 | May 15, 2026 |
| RHUMBLINE ADVISERS | History | Reduced | 44,341 | 213 | 0.0% | 0.0% | 46 | -549 | -1.22% | Q1 2026 | May 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | New | 40,043 | 192 | 0.0% | — | 47 | +40,043 | New | Q1 2026 | May 15, 2026 |
| OCCUDO QUANTITATIVE STRATEGIES LP | History | Added to | 34,930 | 177 | 0.01% | 0.0% | 48 | +21,779 | 165.61% | Q1 2026 | May 15, 2026 |
| LPL Financial LLC | History | Added to | 35,000 | 168 | 0.0% | 0.0% | 49 | +10,000 | 40.0% | Q1 2026 | May 06, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 33,319 | 160 | 0.0% | 0.0% | 50 | +4,746 | 16.61% | Q1 2026 | May 15, 2026 |
| SIMPLEX TRADING, LLC | History | Added to | 31,955 | 153 | 0.0% | 0.0% | 51 | +13,874 | 76.73% | Q1 2026 | May 14, 2026 |
| Permanent Capital Management, LP | History | Reduced | 30,000 | 152 | 0.02% | 0.3% | 52 | -375,345 | -92.6% | Q1 2026 | May 14, 2026 |
| LEVIN CAPITAL STRATEGIES, L.P. | History | Reduced | 30,000 | 144 | 0.01% | 0.32% | 54 | -953,261 | -96.95% | Q1 2026 | May 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | Added to | 29,937 | 144 | 0.0% | 0.0% | 53 | +11,199 | 59.77% | Q1 2026 | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | No change | 37,740 | 141 | 0.0% | 0.0% | 55 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | New | 25,177 | 121 | 0.0% | — | 56 | +25,177 | New | Q1 2026 | May 15, 2026 |
| ELKHORN PARTNERS LIMITED PARTNERSHIP | History | Reduced | 25,000 | 120 | 0.08% | 0.08% | 57 | -9,500 | -27.54% | Q1 2026 | May 14, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 24,627 | 118 | 0.0% | 0.0% | 58 | +22,553 | 1087.42% | Q1 2026 | May 13, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 24,507 | 117 | 0.0% | 0.0% | 59 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| SNS Financial Group, LLC | History | No change | 22,000 | 105 | 0.01% | 0.01% | 60 | 0 | 0.0% | Q1 2026 | Apr 14, 2026 |
| IMC-Chicago, LLC | History | New | 21,620 | 103 | 0.0% | — | 61 | +21,620 | New | Q1 2026 | May 05, 2026 |
| Creative Planning | History | New | 20,950 | 100 | 0.0% | — | 62 | +20,950 | New | Q1 2026 | May 12, 2026 |
| Ethic Inc. | History | Reduced | 20,030 | 96 | 0.0% | 0.0% | 63 | -19,084 | -48.79% | Q1 2026 | Apr 27, 2026 |
| MetLife Investment Management, LLC | History | New | 19,448 | 93 | 0.0% | — | 64 | +19,448 | New | Q1 2026 | May 14, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | Reduced | 18,500 | 88 | 0.0% | 0.0% | 65 | -100 | -0.54% | Q1 2026 | May 14, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Added to | 16,283 | 78 | 0.0% | 0.0% | 66 | +374 | 2.35% | Q1 2026 | May 15, 2026 |
| Sather Financial Group Inc | History | Added to | 15,312 | 73 | 0.0% | 0.0% | 67 | +8 | 0.05% | Q1 2026 | Apr 29, 2026 |
| Quadrature Capital Ltd | History | New | 15,079 | 72 | 0.0% | — | 68 | +15,079 | New | Q1 2026 | May 15, 2026 |
| Investors Research Corp | History | Added to | 14,609 | 70 | 0.01% | 0.01% | 71 | +600 | 4.28% | Q1 2026 | Apr 03, 2026 |
| SALEM INVESTMENT COUNSELORS INC | History | No change | 14,664 | 70 | 0.0% | 0.0% | 69 | 0 | 0.0% | Q1 2026 | Apr 29, 2026 |
| ROYCE & ASSOCIATES LP | History | No change | 14,611 | 70 | 0.0% | 0.0% | 70 | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| Abel Hall, LLC | History | Added to | 14,452 | 69 | 0.01% | 0.01% | 72 | +804 | 5.89% | Q1 2026 | Apr 28, 2026 |
| Corient Private Wealth LLC | History | New | 14,251 | 68 | 0.0% | — | 74 | +14,251 | New | Q1 2026 | May 15, 2026 |
| PRUDENTIAL FINANCIAL INC | History | New | 14,215 | 68 | 0.0% | — | 73 | +14,215 | New | Q1 2026 | May 13, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 12,925 | 62 | 0.0% | 0.0% | 75 | -25,973 | -66.77% | Q1 2026 | May 11, 2026 |
| Vanguard Global Advisers, LLC | History | New | 12,759 | 61 | 0.0% | — | 77 | +12,759 | New | Q1 2026 | May 08, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 12,759 | 61 | 0.0% | 0.0% | 76 | 0 | 0.0% | Q1 2026 | Apr 29, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | Reduced | 12,648 | 60 | 0.0% | 0.0% | 78 | -1,967 | -13.46% | Q1 2026 | May 15, 2026 |
| Mariner, LLC | History | New | 12,145 | 58 | 0.0% | — | 79 | +12,145 | New | Q1 2026 | May 13, 2026 |
| Gem Investment Advisors, LLC | History | No change | 11,250 | 54 | 0.05% | 0.04% | 80 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Jump Financial, LLC | History | New | 11,100 | 53 | 0.0% | — | 81 | +11,100 | New | Q1 2026 | May 14, 2026 |
| VICTORY CAPITAL MANAGEMENT INC | History | Reduced | 10,899 | 52 | 0.0% | 0.0% | 82 | -65 | -0.59% | Q1 2026 | May 15, 2026 |
| INTECH INVESTMENT MANAGEMENT LLC | History | Reduced | 10,187 | 48 | 0.0% | 0.0% | 83 | -3,535 | -25.76% | Q1 2026 | May 08, 2026 |
| Horizon Wealth Management, LLC | History | No change | 10,000 | 48 | 0.01% | 0.01% | 84 | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ | History | Reduced | 8,958 | 43 | 0.0% | 0.0% | 85 | -1,138 | -11.27% | Q1 2026 | May 08, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 8,921 | 42 | 0.0% | 0.0% | 86 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 8,070 | 38 | 0.0% | 0.0% | 87 | -394 | -4.66% | Q1 2026 | May 12, 2026 |
| BARCLAYS PLC | History | Reduced | 6,593 | 31 | 0.0% | 0.0% | 88 | -46,875 | -87.67% | Q1 2026 | May 14, 2026 |
| MAI Capital Management | History | Added to | 6,495 | 31 | 0.0% | 0.0% | 89 | +17 | 0.26% | Q1 2026 | May 15, 2026 |
| Capital Advisors, Ltd. LLC | History | Reduced | 6,000 | 29 | 0.0% | 0.0% | 90 | -2,000 | -25.0% | Q1 2026 | Apr 16, 2026 |
| CWM, LLC | History | Added to | 4,641 | 22 | 0.0% | 0.0% | 91 | +1,483 | 46.96% | Q1 2026 | May 14, 2026 |
| CITIGROUP INC | History | Added to | 3,164 | 15 | 0.0% | 0.0% | 92 | +2,366 | 296.49% | Q1 2026 | May 11, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 3,139 | 15 | 0.0% | 0.0% | 93 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| OSAIC HOLDINGS, INC. | History | Added to | 2,925 | 14 | 0.0% | 0.0% | 95 | +2,325 | 387.5% | Q1 2026 | May 15, 2026 |
| Legal & General Group Plc | History | No change | 2,926 | 14 | 0.0% | 0.0% | 94 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| Russell Investments Group, Ltd. | History | No change | 3,045 | 14 | 0.0% | 0.0% | 96 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 2,439 | 11 | 0.0% | 0.0% | 97 | -845 | -25.73% | Q1 2026 | May 15, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Added to | 1,791 | 8 | 0.0% | 0.0% | 98 | +278 | 18.37% | Q1 2026 | May 08, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Reduced | 1,851 | 8 | 0.0% | 0.0% | 99 | -252 | -11.98% | Q1 2026 | May 15, 2026 |
| Sterling Capital Management LLC | History | Reduced | 1,132 | 5 | 0.0% | 0.0% | 100 | -839 | -42.57% | Q1 2026 | Apr 22, 2026 |
| HARBOR CAPITAL ADVISORS, INC. | History | Added to | 884 | 4 | 0.0% | 0.0% | 101 | +7 | 0.8% | Q1 2026 | Apr 28, 2026 |
| Torren Management, LLC | History | Reduced | 564 | 2 | 0.0% | 0.0% | 103 | -208 | -26.94% | Q1 2026 | Apr 30, 2026 |
| Private Wealth Management Group, LLC | History | Added to | 435 | 2 | 0.0% | 0.0% | 102 | +77 | 21.51% | Q1 2026 | Apr 23, 2026 |
| US BANCORP \DE\ | History | New | 340 | 1 | 0.0% | — | 105 | +340 | New | Q1 2026 | May 14, 2026 |
| SBI Securities Co., Ltd. | History | Added to | 265 | 1 | 0.0% | — | 104 | +15 | 6.0% | Q1 2026 | Apr 27, 2026 |
| Jefferies Financial Group Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -85,000 | -100.0% | Q1 2026 | May 07, 2026 |
| CITIZENS FINANCIAL GROUP INC/RI | History | Closed out | 0 | 0 | — | 0.0% | — | -50,000 | -100.0% | Q1 2026 | May 01, 2026 |
| NewEdge Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -32,778 | -100.0% | Q1 2026 | May 15, 2026 |
| Pekin Hardy Strauss, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -10,000 | -100.0% | Q1 2026 | May 06, 2026 |
| AMALGAMATED BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -1,074 | -100.0% | Q1 2026 | May 08, 2026 |
| ROYAL BANK OF CANADA | History | Closed out | 0 | 0 | — | 0.0% | — | -1,031 | -100.0% | Q1 2026 | May 15, 2026 |
| Optiver Holding B.V. | History | Closed out | 0 | 0 | — | 0.0% | — | -542 | -100.0% | Q1 2026 | May 15, 2026 |
| Essential Partners LLC | History | Added to | 200 | 0 | — | — | — | +155 | 344.44% | Q1 2026 | May 21, 2026 |
| C M BIDWELL & ASSOCIATES LTD | History | New | 135 | 0 | — | — | — | +135 | New | Q1 2026 | May 14, 2026 |
| GAMMA Investing LLC | History | New | 79 | 0 | — | — | — | +79 | New | Q1 2026 | Apr 06, 2026 |
| Allworth Financial LP | History | New | 76 | 0 | — | — | — | +76 | New | Q1 2026 | May 14, 2026 |
| Root Financial Partners, LLC | History | New | 64 | 0 | — | — | — | +64 | New | Q1 2026 | Apr 24, 2026 |
| Arax Advisory Partners | History | New | 63 | 0 | — | — | — | +63 | New | Q1 2026 | May 13, 2026 |
| EverSource Wealth Advisors, LLC | History | Added to | 205 | 0 | — | — | — | +21 | 11.41% | Q1 2026 | May 15, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | Added to | 116 | 0 | — | — | — | +6 | 5.45% | Q1 2026 | May 07, 2026 |
| Farther Finance Advisors, LLC | History | New | 6 | 0 | — | — | — | +6 | New | Q1 2026 | Apr 07, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 2 | 0 | — | — | — | +2 | New | Q1 2026 | May 11, 2026 |
| Transamerica Financial Advisors, LLC | History | No change | 20 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| IFP Advisors, Inc | History | No change | 33 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 13, 2026 |
| True Wealth Design, LLC | History | No change | 2 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 13, 2026 |