Acacia Research Corp
ACTG- Exchange
- Nasdaq
- Industry
- Patent Owners & Lessors
- SEC CIK
- 0000934549
In the last 90 days, Acacia Research Corp insiders filed 0 open-market purchases and 4 sales; 122 institutions reported holding it in 13F filings for Q2 2026, worth $401.0M in total; Starboard Value is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Acacia Research Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 118
- +25 vs. Q4 2025
- Shares held
- 84.7M
- +2.95M (+3.6%) vs. Q4 2025
- Total value
- $407.4M
- +$101.4M (+33.1%) vs. Q4 2025
- New holders
- 31
- 38 more added
- Sold out
- 6
- 30 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ACTG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 122 | $401.0M |
| Q1 2026 | 118 | $407.4M |
| Q4 2025 | 94 | $313.8M |
| Q3 2025 | 89 | $273.8M |
| Q2 2025 | 86 | $299.3M |
| Q1 2025 | 89 | $265.9M |
| Q4 2024 | 95 | $362.5M |
| Q3 2024 | 103 | $395.7M |
| Q2 2024 | 103 | $432.3M |
| Q1 2024 | 92 | $458.4M |
| Q4 2023 | 95 | $339.2M |
| Q3 2023 | 89 | $314.2M |
| Q2 2023 | 84 | $186.4M |
| Q1 2023 | 81 | $158.8M |
| Q4 2022 | 84 | $102.2M |
| Q3 2022 | 77 | $79.2M |
| Q2 2022 | 85 | $108.7M |
| Q1 2022 | 96 | $123.9M |
| Q4 2021 | 110 | $150.2M |
| Q3 2021 | 102 | $193.9M |
| Q2 2021 | 96 | $198.2M |
| Q1 2021 | 112 | $200.7M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Acacia Research Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Starboard Value LPSuperinvestorStarboard Value | 61,123,595 | $294.0M | 6.44% | 00.0% | Unchanged |
| State Street Corp | 3,105,041 | $14.9M | 0.00% | −40,940−1.3% | Reduced |
| Dimensional Fund Advisors LP | 2,853,889 | $13.7M | 0.00% | +95,089+3.4% | Added |
| BlackRock, Inc. | 2,406,367 | $11.6M | 0.00% | +42,520+1.8% | Added |
| Vanguard Capital Management LLC | 1,596,121 | $7.68M | 0.00% | +1,596,121 | New |
| Renaissance Technologies LLC | 1,407,584 | $6.77M | 0.01% | +12,284+0.9% | Added |
| Krilogy Financial LLC | 1,127,487 | $5.63M | 0.18% | −115,926−9.3% | Reduced |
| Peapod Lane Capital LLC | 1,091,336 | $5.26M | 4.31% | +245,382+29.0% | Added |
| Geode Capital Management, LLC | 857,719 | $4.13M | 0.00% | +11,412+1.3% | Added |
| Pacific Ridge Capital Partners, LLC | 817,242 | $3.93M | 0.85% | +6,918+0.9% | Added |
| Formidable Asset Management, LLC | 838,869 | $3.73M | 0.58% | −31,962−3.7% | Reduced |
| Bridgeway Capital Management, LLC | 603,510 | $2.90M | 0.06% | +161,624+36.6% | Added |
| Goldman Sachs Group Inc | 584,102 | $2.81M | 0.00% | +275,110+89.0% | Added |
| American Century Companies Inc | 511,374 | $2.46M | 0.00% | +18,335+3.7% | Added |
| Aegis Financial Corp | 491,086 | $2.36M | 0.41% | +491,086 | New |
| Toroso Investments, LLC | 437,428 | $2.10M | 0.01% | 00.0% | Unchanged |
| Empowered Funds, LLC | 340,210 | $1.64M | 0.01% | +340,210 | New |
| Morgan Stanley | 276,902 | $1.33M | 0.00% | −166,361−37.5% | Reduced |
| Northern Trust Corp | 269,647 | $1.30M | 0.00% | +26,708+11.0% | Added |
| Vanguard Portfolio Management LLC | 261,909 | $1.26M | 0.00% | +261,909 | New |
| Vanguard Fiduciary Trust Co | 221,379 | $1.06M | 0.00% | +221,379 | New |
| Citadel Advisors LLC | 197,571 | $950.3K | 0.00% | −133,556−40.3% | Reduced |
| Susquehanna International Group, LLP | 196,296 | $944.2K | 0.00% | +57,089+41.0% | Added |
| Franklin Resources Inc | 185,288 | $891.2K | 0.00% | +185,288 | New |
| Jane Street Group, LLC | 175,411 | $843.7K | 0.00% | +122,787+233.3% | Added |
| Corsair Capital Management, L.P. | 166,672 | $801.7K | 0.12% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 155,523 | $744.0K | 0.00% | +155,523 | New |
| Marquette Asset Management, LLC | 149,408 | $718.7K | 0.11% | +56,171+60.2% | Added |
| JPMorgan Chase & Co | 115,856 | $560.7K | 0.00% | −24,181−17.3% | Reduced |
| Marshall Wace, LLP | 116,289 | $559.4K | 0.00% | +81,962+238.8% | Added |
| UBS Group AG | 116,072 | $558.3K | 0.00% | −7,968−6.4% | Reduced |
| Bank of New York Mellon Corp | 112,430 | $540.8K | 0.00% | −8,898−7.3% | Reduced |
| Charles Schwab Investment Management Inc | 104,719 | $503.7K | 0.00% | −10,246−8.9% | Reduced |
| Capital Wealth Alliance, LLC | 103,970 | $500.1K | 0.23% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 88,552 | $425.9K | 0.00% | +88,552 | New |
| AQR Capital Management LLC | 81,708 | $393.0K | 0.00% | +28,846+54.6% | Added |
| Invesco Ltd. | 76,583 | $368.4K | 0.00% | −560−0.7% | Reduced |
| FMR LLC | 75,760 | $364.4K | 0.00% | +846+1.1% | Added |
| GatePass Capital, LLC | 75,500 | $363.2K | 0.18% | −24,300−24.3% | Reduced |
| Ritholtz Wealth Management | 64,978 | $312.5K | 0.01% | +64,978 | New |
| O'Shaughnessy Asset Management, LLC | 58,060 | $279.3K | 0.00% | +58,060 | New |
| Cornerstone Investment Partners, LLC | 55,124 | $265.1K | 0.01% | +55,124 | New |
| Nuveen, LLC | 48,219 | $231.9K | 0.00% | −9,114−15.9% | Reduced |
| Quantinno Capital Management LP | 44,618 | $214.6K | 0.00% | +44,618 | New |
| Rhumbline Advisers | 44,341 | $213.3K | 0.00% | −549−1.2% | Reduced |
| GWM Advisors LLC | 42,129 | $202.6K | 0.00% | +9,351+28.5% | Added |
| Millennium Management LLC | 40,043 | $192.6K | 0.00% | +40,043 | New |
| Occudo Quantitative Strategies LP | 34,930 | $177.4K | 0.01% | +21,779+165.6% | Added |
| LPL Financial LLC | 35,000 | $168.3K | 0.00% | +10,000+40.0% | Added |
| Bank of America Corp | 33,319 | $160.3K | 0.00% | +4,746+16.6% | Added |
| Simplex Trading, LLC | 31,955 | $153.7K | 0.00% | +13,874+76.7% | Added |
| Permanent Capital Management, LP | 30,000 | $152.4K | 0.02% | −375,345−92.6% | Reduced |
| Levin Capital Strategies, L.P. | 30,000 | $144.3K | 0.01% | −953,261−96.9% | Reduced |
| Price T Rowe Associates Inc | 29,937 | $144.0K | 0.00% | +11,199+59.8% | Added |
| Alliancebernstein L.P. | 37,740 | $141.1K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 25,177 | $121.1K | 0.00% | +25,177 | New |
| Elkhorn Partners Limited Partnership | 25,000 | $120.3K | 0.08% | −9,500−27.5% | Reduced |
| Group One Trading, L.P. | 24,627 | $118.5K | 0.00% | +22,553+1,087.4% | Added |
| Deutsche Bank AG | 24,507 | $117.9K | 0.00% | 00.0% | Unchanged |
| SNS Financial Group, LLC | 22,000 | $105.8K | 0.01% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 21,620 | $104.0K | 0.00% | +21,620 | New |
| Creative Planning | 20,950 | $100.8K | 0.00% | +20,950 | New |
| Ethic Inc. | 20,030 | $96.3K | 0.00% | −19,084−48.8% | Reduced |
| MetLife Investment Management | 19,448 | $93.5K | 0.00% | +19,448 | New |
| Raymond James Financial Inc | 18,500 | $89.0K | 0.00% | −100−0.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 16,283 | $78.3K | 0.00% | +374+2.4% | Added |
| Sather Financial Group Inc | 15,312 | $73.7K | 0.00% | +8+0.1% | Added |
| Quadrature Capital Ltd | 15,079 | $72.5K | 0.00% | +15,079 | New |
| Salem Investment Counselors Inc | 14,664 | $70.5K | 0.00% | 00.0% | Unchanged |
| Royce & Associates LP | 14,611 | $70.3K | 0.00% | 00.0% | Unchanged |
| Investors Research Corp | 14,609 | $70.3K | 0.01% | +600+4.3% | Added |
| Abel Hall, LLC | 14,452 | $69.5K | 0.01% | +804+5.9% | Added |
| CI Private Wealth, LLC | 14,251 | $68.5K | 0.00% | +14,251 | New |
| Prudential Financial Inc | 14,215 | $68.4K | 0.00% | +14,215 | New |
| Wells Fargo & Company | 12,925 | $62.2K | 0.00% | −25,973−66.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 12,759 | $61.4K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 12,759 | $61.4K | 0.00% | +12,759 | New |
| Manufacturers Life Insurance Company, The | 12,648 | $60.8K | 0.00% | −1,967−13.5% | Reduced |
| Mariner, LLC | 12,145 | $58.4K | 0.00% | +12,145 | New |
| Gem Investment Advisors, LLC | 11,250 | $54.1K | 0.05% | 00.0% | Unchanged |
| Jump Financial, LLC | 11,100 | $53.4K | 0.00% | +11,100 | New |
| Victory Capital Management Inc | 10,899 | $52.4K | 0.00% | −65−0.6% | Reduced |
| Intech Investment Management LLC | 10,187 | $49.0K | 0.00% | −3,535−25.8% | Reduced |
| Horizon Wealth Management, LLC | 10,000 | $48.1K | 0.01% | 00.0% | Unchanged |
| Zions Bancorporation, National Association | 8,958 | $43.1K | 0.00% | −1,138−11.3% | Reduced |
| New York State Common Retirement Fund | 8,921 | $42.9K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 8,070 | $38.8K | 0.00% | −394−4.7% | Reduced |
| Barclays PLC | 6,593 | $31.7K | 0.00% | −46,875−87.7% | Reduced |
| MAI Capital Management | 6,495 | $31.2K | 0.00% | +17+0.3% | Added |
| Capital Advisors, Ltd. LLC | 6,000 | $29.0K | 0.00% | −2,000−25.0% | Reduced |
| CWM, LLC | 4,641 | $22.3K | 0.00% | +1,483+47.0% | Added |
| Citigroup Inc | 3,164 | $15.2K | 0.00% | +2,366+296.5% | Added |
| Ameritas Investment Partners, Inc. | 3,139 | $15.1K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 3,045 | $14.6K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 2,926 | $14.1K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 2,925 | $14.1K | 0.00% | +2,325+387.5% | Added |
| Tower Research Capital LLC (TRC) | 2,439 | $11.7K | 0.00% | −845−25.7% | Reduced |
| California State Teachers Retirement System | 1,851 | $8.90K | 0.00% | −252−12.0% | Reduced |
| The PNC Financial Services Group, Inc. | 1,791 | $8.62K | 0.00% | +278+18.4% | Added |
| Sterling Capital Management LLC | 1,132 | $5.45K | 0.00% | −839−42.6% | Reduced |