ACACIA RESEARCH CORP (ACTG) — Institutional Holders, Q2 2026
125 institutional investment managers reported a ACTG position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $401.5M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ACTG in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- GOLDMAN SACHS GROUPAdded · +591,061 sh+$2.8M
- BlackRockAdded · +190,907 sh+$889.6K
- AMERICAN CENTURY COMPANIESAdded · +181,935 sh+$847.8K
- AQR CAPITAL MANAGEMENTAdded · +154,684 sh+$720.8K
- ACADIAN ASSET MANAGEMENTAdded · +108,354 sh+$504.9K
Biggest sellers
- MARSHALL WACE, LLPSold out · -116,289 sh-$541.9K
- VANGUARD CAPITAL MANAGEMENTTrimmed · -110,934 sh-$517.0K
- Peapod Lane CapitalTrimmed · -96,566 sh-$450.0K
- MORGAN STANLEYTrimmed · -63,765 sh-$297.1K
- JANE STREET GROUPTrimmed · -63,638 sh-$296.6K
ACTG 13F holders ranked 1–100 of 125
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Starboard Value#1 · 61,123,595 sh | 61,123,595 | $284.8M | 6.30% | 0.0% |
| 2 | STATE STREET#2 · 3,166,717 sh | 3,166,717 | $14.8M | <0.01% | +2.0% |
| 3 | DIMENSIONAL FUND ADVISORS#3 · 2,941,723 sh | 2,941,723 | $13.7M | <0.01% | +3.1% |
| 4 | BlackRock#4 · 2,597,274 sh | 2,597,274 | $12.1M | <0.01% | +7.9% |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 1,485,187 sh | 1,485,187 | $6.9M | <0.01% | -7.0% |
| 6 | RENAISSANCE TECHNOLOGIES#6 · 1,415,088 sh | 1,415,088 | $6.6M | <0.01% | +0.5% |
| 7 | GOLDMAN SACHS GROUP#7 · 1,175,163 sh | 1,175,163 | $5.5M | <0.01% | +101.2% |
| 8 | Krilogy Financial#8 · 1,127,831 sh | 1,127,831 | $5.3M | — | 0.0% |
| 9 | Peapod Lane Capital#9 · 994,770 sh | 994,770 | $4.6M | — | -8.8% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 900,809 sh | 900,809 | $4.2M | <0.01% | +5.0% |
| 11 | Pacific Ridge Capital Partners#11 · 810,962 sh | 810,962 | $3.8M | 0.69% | -0.8% |
| 12 | Formidable Asset Management#12 · 793,136 sh | 793,136 | $3.7M | 0.59% | -5.5% |
| 13 | AMERICAN CENTURY COMPANIES#13 · 693,309 sh | 693,309 | $3.2M | <0.01% | +35.6% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT#14 · 629,326 sh | 629,326 | $2.9M | 0.05% | +4.3% |
| 15 | AEGIS FINANCIAL#15 · 491,086 sh | 491,086 | $2.3M | 0.36% | 0.0% |
| 16 | Toroso Investments#16 · 424,173 sh | 424,173 | $2.0M | <0.01% | -3.0% |
| 17 | Empowered Funds#17 · 366,026 sh | 366,026 | $1.7M | <0.01% | +7.6% |
| 18 | NORTHERN#18 · 289,835 sh | 289,835 | $1.4M | <0.01% | +7.5% |
| 19 | VANGUARD PORTFOLIO MANAGEMENT#19 · 289,396 sh | 289,396 | $1.3M | <0.01% | +10.5% |
| 20 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#20 · 288,462 sh | 288,462 | $1.3M | <0.01% | +47.0% |
| 21 | ACADIAN ASSET MANAGEMENT#21 · 263,877 sh | 263,877 | $1.2M | <0.01% | +69.7% |
| 22 | CITADEL ADVISORS#22 · 249,524 sh | 249,524 | $1.2M | <0.01% | +26.3% |
| 23 | AQR CAPITAL MANAGEMENT#23 · 236,392 sh | 236,392 | $1.1M | <0.01% | +189.3% |
| 24 | VANGUARD FIDUCIARY#24 · 235,357 sh | 235,357 | $1.1M | <0.01% | +6.3% |
| 25 | MORGAN STANLEY#25 · 213,137 sh | 213,137 | $993.2K | <0.01% | -23.0% |
| 26 | FRANKLIN RESOURCES#26 · 190,188 sh | 190,188 | $886.3K | <0.01% | +2.6% |
| 27 | CORSAIR CAPITAL MANAGEMENT, L.P.#27 · 166,672 sh | 166,672 | $776.7K | 0.10% | 0.0% |
| 28 | O'SHAUGHNESSY ASSET MANAGEMENT#28 · 150,172 sh | 150,172 | $699.8K | <0.01% | +158.6% |
| 29 | Marquette Asset Management#29 · 134,467 sh | 134,467 | $626.6K | — | -10.0% |
| 30 | UBS Group AG#30 · 126,649 sh | 126,649 | $590.2K | <0.01% | +9.1% |
| 31 | RITHOLTZ WEALTH MANAGEMENT#31 · 114,481 sh | 114,481 | $533.5K | <0.01% | +76.2% |
| 32 | CHARLES SCHWAB INVESTMENT MANAGEMENT#32 · 112,016 sh | 112,016 | $522.0K | <0.01% | +7.0% |
| 33 | Bank of New York Mellon#33 · 111,867 sh | 111,867 | $521.3K | <0.01% | -0.5% |
| 34 | JANE STREET GROUP#34 · 111,773 sh | 111,773 | $520.9K | 0.00% | -36.3% |
| 35 | Coppell Advisory Solutions#35 · 29 sh | 29 | $519.6K | 0.04% | New |
| 36 | Quantinno Capital Management#36 · 106,140 sh | 106,140 | $494.6K | <0.01% | +137.9% |
| 37 | Capital Wealth Alliance#37 · 103,970 sh | 103,970 | $484.5K | — | 0.0% |
| 38 | JPMORGAN CHASE#38 · 89,571 sh | 89,571 | $417.4K | 0.00% | -22.7% |
| 39 | FMR#39 · 75,735 sh | 75,735 | $352.9K | 0.00% | 0.0% |
| 40 | GatePass Capital#40 · 75,500 sh | 75,500 | $351.8K | 0.13% | 0.0% |
| 41 | SIMPLEX TRADING#41 · 65,103 sh | 65,103 | $303.4K | <0.01% | +103.7% |
| 42 | STATE OF WISCONSIN INVESTMENT BOARD#42 · 56,519 sh | 56,519 | $263.4K | <0.01% | New |
| 43 | Cornerstone Investment Partners#43 · 52,599 sh | 52,599 | $245.1K | <0.01% | -4.6% |
| 44 | Nuveen#44 · 48,219 sh | 48,219 | $224.7K | <0.01% | 0.0% |
| 45 | RHUMBLINE ADVISERS#45 · 44,731 sh | 44,731 | $208.4K | <0.01% | +0.9% |
| 46 | ALLIANCEBERNSTEIN L.P.#46 · 42,840 sh | 42,840 | $206.1K | <0.01% | +13.5% |
| 47 | Point72 Asset Management, L.P.#47 · 42,410 sh | 42,410 | $197.6K | <0.01% | -52.1% |
| 48 | Jump Financial#48 · 38,248 sh | 38,248 | $178.2K | <0.01% | +244.6% |
| 49 | DEUTSCHE BANK AG\#49 · 34,142 sh | 34,142 | $159.1K | 0.00% | +39.3% |
| 50 | PRICE T ROWE ASSOCIATES#50 · 31,709 sh | 31,709 | $148.0K | 0.00% | +5.9% |
| 51 | Invesco Ltd.#51 · 30,527 sh | 30,527 | $142.3K | 0.00% | -60.1% |
| 52 | WELLS FARGO & COMPANY#52 · 30,301 sh | 30,301 | $141.2K | 0.00% | +134.4% |
| 53 | LEVIN CAPITAL STRATEGIES, L.P.#53 · 30,000 sh | 30,000 | $139.8K | <0.01% | 0.0% |
| 54 | Permanent Capital Management#54 · 30,000 sh | 30,000 | $139.8K | 0.02% | 0.0% |
| 55 | MERCER GLOBAL ADVISORS#55 · 27,379 sh | 27,379 | $127.6K | <0.01% | New |
| 56 | XTX Topco Ltd#56 · 25,640 sh | 25,640 | $119.5K | <0.01% | +1.8% |
| 57 | ELKHORN PARTNERS LIMITED PARTNERSHIP#57 · 25,000 sh | 25,000 | $116.5K | 0.10% | 0.0% |
| 58 | BANK OF AMERICA#58 · 24,022 sh | 24,022 | $111.9K | 0.00% | -27.9% |
| 59 | Mariner#59 · 23,485 sh | 23,485 | $109.4K | <0.01% | +93.4% |
| 60 | IEQ CAPITAL#60 · 22,460 sh | 22,460 | $104.7K | <0.01% | New |
| 61 | GSA CAPITAL PARTNERS LLP#61 · 21,397 sh | 21,397 | $100.0K | <0.01% | New |
| 62 | MetLife Investment Management#62 · 20,309 sh | 20,309 | $94.6K | <0.01% | +4.4% |
| 63 | LPL Financial#63 · 20,000 sh | 20,000 | $93.2K | 0.00% | -42.9% |
| 64 | Ethic#64 · 19,682 sh | 19,682 | $91.7K | <0.01% | -1.7% |
| 65 | GROUP ONE TRADING, L.P.#65 · 19,485 sh | 19,485 | $90.8K | <0.01% | -20.9% |
| 66 | Russell Investments Group, Ltd.#66 · 18,875 sh | 18,875 | $88.0K | <0.01% | +519.9% |
| 67 | RAYMOND JAMES FINANCIAL#67 · 18,500 sh | 18,500 | $86.2K | 0.00% | 0.0% |
| 68 | IMC-Chicago#68 · 17,544 sh | 17,544 | $81.8K | 0.00% | -18.9% |
| 69 | CITIGROUP#69 · 16,151 sh | 16,151 | $75.3K | 0.00% | +410.5% |
| 70 | MIRAE ASSET GLOBAL ETFS Ltd.#70 · 16,112 sh | 16,112 | $75.1K | <0.01% | -1.1% |
| 71 | WEALTH ENHANCEMENT ADVISORY SERVICES#71 · 16,849 sh | 16,849 | $74.5K | — | New |
| 72 | Sather Financial Group#72 · 15,312 sh | 15,312 | $71.4K | <0.01% | 0.0% |
| 73 | SALEM INVESTMENT COUNSELORS#73 · 14,664 sh | 14,664 | $68.3K | — | New |
| 74 | ROYCE & ASSOCIATES#74 · 14,611 sh | 14,611 | $68.1K | <0.01% | 0.0% |
| 75 | Investors Research#75 · 14,609 sh | 14,609 | $68.1K | — | 0.0% |
| 76 | Abel Hall#76 · 14,416 sh | 14,416 | $67.2K | — | -0.2% |
| 77 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#77 · 13,807 sh | 13,807 | $64.3K | <0.01% | +9.2% |
| 78 | Vanguard Global Advisers#78 · 12,759 sh | 12,759 | $59.5K | 0.00% | 0.0% |
| 79 | Police & Firemen's Retirement System of New Jersey#79 · 12,759 sh | 12,759 | $59.5K | <0.01% | 0.0% |
| 80 | SG Americas Securities#80 · 11,901 sh | 11,901 | $55.0K | 0.00% | New |
| 81 | Gem Investment Advisors#81 · 11,250 sh | 11,250 | $52.4K | 0.03% | 0.0% |
| 82 | VICTORY CAPITAL MANAGEMENT#82 · 11,020 sh | 11,020 | $51.4K | 0.00% | +1.1% |
| 83 | Quadrature Capital Ltd#83 · 10,046 sh | 10,046 | $46.8K | <0.01% | -33.4% |
| 84 | Horizon Wealth Management#84 · 10,000 sh | 10,000 | $46.6K | <0.01% | 0.0% |
| 85 | NEW YORK STATE COMMON RETIREMENT FUND#85 · 8,921 sh | 8,921 | $41.6K | <0.01% | 0.0% |
| 86 | BNP PARIBAS FINANCIAL MARKETS#86 · 6,423 sh | 6,423 | $29.9K | 0.00% | -20.4% |
| 87 | Capital Advisors, Ltd.#87 · 6,000 sh | 6,000 | $28.0K | <0.01% | 0.0% |
| 88 | ZIONS BANCORPORATION, NATIONAL ASSOCIATION#88 · 5,935 sh | 5,935 | $27.7K | <0.01% | -33.7% |
| 89 | BARCLAYS PLC#89 · 5,621 sh | 5,621 | $26.2K | 0.00% | -14.7% |
| 90 | SRS Capital Advisors#90 · 4,866 sh | 4,866 | $22.7K | <0.01% | +7623.8% |
| 91 | Tower Research Capital (TRC)#91 · 3,866 sh | 3,866 | $18.0K | <0.01% | +58.5% |
| 92 | Optiver Holding B.V.#92 · 3,358 sh | 3,358 | $15.6K | 0.00% | New |
| 93 | Ameritas Investment Partners#93 · 3,139 sh | 3,139 | $14.6K | <0.01% | 0.0% |
| 94 | Legal & General Group Plc#94 · 2,926 sh | 2,926 | $13.6K | 0.00% | 0.0% |
| 95 | EFG International AG#95 · 2,920 sh | 2,920 | $13.6K | <0.01% | New |
| 96 | McCarley & Cook Financial Planners#96 · 2,000 sh | 2,000 | $9.3K | — | 0.0% |
| 97 | PNC FINANCIAL SERVICES GROUP#97 · 1,791 sh | 1,791 | $8.3K | 0.00% | 0.0% |
| 98 | ROYAL BANK OF CANADA#98 · 1,692 sh | 1,692 | $8.0K | 0.00% | New |
| 99 | Integrated Wealth Concepts#99 · 1,235 sh | 1,235 | $5.8K | 0.00% | New |
| 100 | OSAIC#100 · 925 sh | 925 | $4.3K | 0.00% | -68.4% |
Funds that sold out of ACTG in Q2 2026 (10)
Held ACTG at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| MARSHALL WACE, LLP116,289 sh | 116,289 | $559.4K |
| MILLENNIUM MANAGEMENT40,043 sh | 40,043 | $192.6K |
| OCCUDO QUANTITATIVE STRATEGIES34,930 sh | 34,930 | $177.4K |
| SNS Financial Group22,000 sh | 22,000 | $105.8K |
| Creative Planning20,950 sh | 20,950 | $100.8K |
| Corient Private Wealth14,251 sh | 14,251 | $68.5K |
| PRUDENTIAL FINANCIAL14,215 sh | 14,215 | $68.4K |
| INTECH INVESTMENT MANAGEMENT10,187 sh | 10,187 | $49.0K |
| MAI Capital Management6,495 sh | 6,495 | $31.2K |
| Root Financial Partners64 sh | 64 | $308.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.