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ACTG

Acacia Research Corp
$4.45 -0.05 (-1.11%) At close · Jul 7
Market Cap
$429.82M
Shares
96,589,132

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 117
Total Value: $406,490,969
Total Shares: 84,509,575
Showing 1–100 of 120 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Superinvestors Holding ACTG

All superinvestors →
Jeffrey Smith $294,004,491

Holder Concentration

Across 117 13F filers
Top Holder
72.3%
Jun 2023 → Mar 2026 · range 44.6% – 73.5%
of institutional value
Top 5
84.1%
Jun 2023 → Mar 2026 · range 64.9% – 85.4%
of institutional value
Top 10
90.4%
Jun 2023 → Mar 2026 · range 79.9% – 92.0%
of institutional value
HHI
5,280
Jun 2023 → Mar 2026 · range 2,163 – 5,446
Highly concentrated
Showing 100 of 120
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mid Starboard Value LP $294,004,491 72.33% 61,123,595
Mega STATE STREET CORP $14,935,247 3.67% 3,105,041
Mega DIMENSIONAL FUND ADVISORS LP $13,727,204 3.38% 2,853,889
Mega BlackRock, Inc. $11,574,623 2.85% 2,406,367
Mega VANGUARD CAPITAL MANAGEMENT LLC $7,677,342 1.89% 1,596,121
Large RENAISSANCE TECHNOLOGIES LLC $6,770,479 1.67% 1,407,584
Mid Krilogy Financial LLC $5,423,212 1.33% 1,127,487
Small Peapod Lane Capital LLC $5,249,326 1.29% 1,091,336
Mega GEODE CAPITAL MANAGEMENT, LLC $4,125,627 1.01% 857,719
Small Formidable Asset Management, LLC $4,034,959 0.99% 838,869
Small Pacific Ridge Capital Partners, LLC $3,930,934 0.97% 817,242
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $2,902,883 0.71% 603,510
Mega GOLDMAN SACHS GROUP INC $2,809,529 0.69% 584,102
Mega AMERICAN CENTURY COMPANIES INC $2,459,708 0.61% 511,374
Small AEGIS FINANCIAL CORP $2,362,123 0.58% 491,086
Large Tidal Investments LLC $2,104,028 0.52% 437,428
Large Empowered Funds, LLC $1,636,410 0.40% 340,210
Mega MORGAN STANLEY $1,331,896 0.33% 276,902
Mega NORTHERN TRUST CORP Bank $1,297,000 0.32% 269,647
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,064,832 0.26% 221,379
Mega CITADEL ADVISORS LLC $950,316 0.23% 197,571
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $944,183 0.23% 196,296
Mega FRANKLIN RESOURCES INC $891,235 0.22% 185,288
Mega JANE STREET GROUP, LLC $843,725 0.21% 175,411
Small CORSAIR CAPITAL MANAGEMENT, L.P. $801,692 0.20% 166,672
Large ACADIAN ASSET MANAGEMENT LLC $748,065 0.18% 155,523
Micro Marquette Asset Management, LLC $718,652 0.18% 149,408
Large MARSHALL WACE, LLP $559,350 0.14% 116,289
Mega UBS Group AG $558,305 0.14% 116,072
Mega JPMORGAN CHASE & CO $557,265 0.14% 115,856
Mega Bank of New York Mellon Corp Bank $540,786 0.13% 112,430
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $503,698 0.12% 104,719
Small Capital Wealth Alliance, LLC $500,095 0.12% 103,970
Large Point72 Asset Management, L.P. $425,935 0.10% 88,552
Mega AQR CAPITAL MANAGEMENT LLC $393,012 0.10% 81,708
Mega Invesco Ltd. $368,362 0.09% 76,583
Mega FMR LLC $364,405 0.09% 75,760
Small GatePass Capital, LLC $363,155 0.09% 75,500
Mid RITHOLTZ WEALTH MANAGEMENT $312,544 0.08% 64,978
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $279,268 0.07% 58,060
Mid Cornerstone Investment Partners, LLC $265,146 0.07% 55,124
Mega Nuveen, LLC $231,933 0.06% 48,219
Large Quantinno Capital Management LP $214,612 0.05% 44,618
Mega RHUMBLINE ADVISERS $213,280 0.05% 44,341
Large NewEdge Advisors, LLC $202,640 0.05% 42,129
Mega MILLENNIUM MANAGEMENT LLC $192,606 0.05% 40,043
Mega ALLIANCEBERNSTEIN L.P. $181,529 0.04% 37,740
Mega LPL Financial LLC $168,350 0.04% 35,000
Mid OCCUDO QUANTITATIVE STRATEGIES LP $168,013 0.04% 34,930
Mega BANK OF AMERICA CORP /DE/ Bank $160,264 0.04% 33,319
Mid SIMPLEX TRADING, LLC $153,703 0.04% 31,955
Mid LEVIN CAPITAL STRATEGIES, L.P. $144,300 0.04% 30,000
Small Permanent Capital Management, LP $144,300 0.04% 30,000
Mega PRICE T ROWE ASSOCIATES INC /MD/ $143,996 0.04% 29,937
Mid XTX Topco Ltd $121,101 0.03% 25,177
Small ELKHORN PARTNERS LIMITED PARTNERSHIP $120,250 0.03% 25,000
Mid GROUP ONE TRADING LLC $118,455 0.03% 24,627
Mega DEUTSCHE BANK AG\ Bank $117,878 0.03% 24,507
Small SNS Financial Group, LLC $105,820 0.03% 22,000
Mid IMC-Chicago, LLC $103,992 0.03% 21,620
Large Creative Planning $100,769 0.02% 20,950
Mid Ethic Inc. $96,344 0.02% 20,030
Large MetLife Investment Management, LLC $93,544 0.02% 19,448
Mega RAYMOND JAMES FINANCIAL INC $88,985 0.02% 18,500
Mega CITADEL ADVISORS LLC $85,618 0.02% 17,800
Mega CITADEL ADVISORS LLC $84,175 0.02% 17,500
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $78,321 0.02% 16,283
Mid Sather Financial Group Inc $73,650 0.02% 15,312
Mid Quadrature Capital Ltd $72,529 0.02% 15,079
Mid SALEM INVESTMENT COUNSELORS INC $70,533 0.02% 14,664
Mid ROYCE & ASSOCIATES LP $70,278 0.02% 14,611
Small Investors Research Corp $70,269 0.02% 14,609
Small Abel Hall, LLC $69,514 0.02% 14,452
Large Corient Private Wealth LLC $68,547 0.02% 14,251
Large PRUDENTIAL FINANCIAL INC $68,374 0.02% 14,215
Mega WELLS FARGO & COMPANY/MN $62,169 0.02% 12,925
Mega Vanguard Global Advisers, LLC $61,370 0.02% 12,759
Large Police & Firemen's Retirement System of New Jersey Pension $61,370 0.02% 12,759
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $60,836 0.01% 12,648
Large Mariner, LLC $58,417 0.01% 12,145
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $56,758 0.01% 11,800
Small Gem Investment Advisors, LLC $54,112 0.01% 11,250
Mid Jump Financial, LLC $53,391 0.01% 11,100
Mega VICTORY CAPITAL MANAGEMENT INC $52,424 0.01% 10,899
Mid INTECH INVESTMENT MANAGEMENT LLC $48,999 0.01% 10,187
Small Horizon Wealth Management, LLC $48,100 0.01% 10,000
Small ZIONS BANCORPORATION, NATIONAL ASSOCIATION /UT/ Bank $43,087 0.01% 8,958
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $42,910 0.01% 8,921
Mega BNP PARIBAS ARBITRAGE, SA $38,816 0.01% 8,070
Mega BARCLAYS PLC $31,712 0.01% 6,593
Mid MAI Capital Management $31,240 0.01% 6,495
Small Capital Advisors, Ltd. LLC $28,860 0.01% 6,000
Large CWM, LLC $22,323 0.01% 4,641
Mega CITIGROUP INC $15,218 0.00% 3,164
Mid Ameritas Investment Partners, Inc. $15,098 0.00% 3,139
Large Russell Investments Group, Ltd. $14,645 0.00% 3,045
Mega Legal & General Group Plc $14,074 0.00% 2,926
Large OSAIC HOLDINGS, INC. $14,069 0.00% 2,925
Mid Tower Research Capital LLC (TRC) $11,731 0.00% 2,439
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $8,903 0.00% 1,851
Key facts CIK 934549 CUSIP 003881307 13F (30d) 1 filings 1 filers Visit website Investor relations

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