ACACIA RESEARCH CORP - ACTG

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
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