ACACIA RESEARCH CORP (ACTG) Institutional Shareholders
ACACIA RESEARCH CORP (ACTG) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $400.47M in ACTG holdings during the latest filing period.
Starboard Value Lp is currently the largest disclosed institutional shareholder of ACTG tracked by InsiderSet, reporting ownership valued at approximately $284.84M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $275.67M, representing an estimated loss of -3.22% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 90% of the total disclosed ACTG value among the investors covered in this analysis. Major shareholders include Starboard Value Lp, State Street Corp, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in ACACIA RESEARCH CORP (ACTG).
This page ranks the largest institutional ACTG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
120
Total Reported Value
$400.47M
Largest Holder
Starboard Value Lp
Largest Position
$284.84M
Insider Transactions (90d)
12
Latest Filing Quarter
Q2 2026
New Institutional Positions
137
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Starboard Value Lp | 6.30% | 61,123,595 | $284,835,953 | $275,667,413 | -$9,168,540 | -3.22% | |
| State Street Corp | 0.00% | 3,166,717 | $14,756,901 | $14,281,894 | -$475,007 | -3.22% | |
| Dimensional Fund Advisors Lp | 0.00% | 2,941,723 | $13,708,479 | $13,267,171 | -$441,308 | -3.22% | |
| Blackrock, Inc. | 0.00% | 2,597,274 | $12,103,298 | $11,713,706 | -$389,592 | -3.22% | |
| Vanguard Capital Management Llc | 0.00% | 1,485,187 | $6,920,971 | $6,698,193 | -$222,778 | -3.22% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 1,415,088 | $6,594,310 | $6,382,047 | -$212,263 | -3.22% |
| Goldman Sachs Group Inc | 0.00% | 1,175,163 | $5,476,260 | $5,299,985 | -$176,275 | -3.22% | |
| Krilogy Financial Llc | 0.16% | 1,127,831 | $5,255,692 | $5,086,518 | -$169,174 | -3.22% | |
| Peapod Lane Capital Llc | 3.13% | 994,770 | $4,635,628 | $4,486,413 | -$149,215 | -3.22% | |
| Geode Capital Management, Llc | 0.00% | 900,809 | $4,198,691 | $4,062,649 | -$136,042 | -3.24% | |
| Pacific Ridge Capital Partners, Llc | 0.69% | 810,962 | $3,779,083 | $3,657,439 | -$121,644 | -3.22% | |
| Formidable Asset Management, Llc | 0.59% | 793,136 | $3,736,629 | $3,577,043 | -$159,586 | -4.27% | |
| American Century Companies Inc | 0.00% | 693,309 | $3,230,820 | $3,126,824 | -$103,996 | -3.22% | |
| Bridgeway Capital Management, Llc | 0.05% | 629,326 | $2,932,659 | $2,838,260 | -$94,399 | -3.22% | |
| Aegis Financial Corp | 0.36% | 491,086 | $2,288,461 | $2,214,798 | -$73,663 | -3.22% | |
| Tidal Investments Llc | 0.00% | 424,173 | $1,976,646 | $1,913,020 | -$63,626 | -3.22% | |
| Empowered Funds, Llc | 0.01% | 366,026 | $1,705,681 | $1,650,777 | -$54,904 | -3.22% | |
| Northern Trust Corp | 0.00% | 289,835 | $1,350,631 | $1,307,156 | -$43,475 | -3.22% | |
| Vanguard Portfolio Management Llc | 0.00% | 289,396 | $1,348,585 | $1,305,176 | -$43,409 | -3.22% | |
| Susquehanna International Group, Llp | 0.00% | 288,462 | $1,344,233 | $1,300,964 | -$43,269 | -3.22% | |
| Acadian Asset Management Llc | 0.00% | 263,877 | $1,224,000 | $1,190,085 | -$33,915 | -2.77% | |
| Citadel Advisors Llc | 0.00% | 249,524 | $1,162,782 | $1,125,353 | -$37,429 | -3.22% | |
| Aqr Capital Management Llc | 0.00% | 236,392 | $1,101,588 | $1,066,128 | -$35,460 | -3.22% | |
| Vanguard Fiduciary Trust Co | 0.00% | 235,357 | $1,096,764 | $1,061,460 | -$35,304 | -3.22% | |
| Morgan Stanley | 0.00% | 213,137 | $993,221 | $961,248 | -$31,973 | -3.22% | |
| Corsair Capital Management, L.P. | 0.10% | 166,672 | $776,692 | $751,691 | -$25,001 | -3.22% | |
| O'Shaughnessy Asset Management, Llc | 0.00% | 150,172 | $699,802 | $677,276 | -$22,526 | -3.22% | |
| Marquette Asset Management, Llc | 0.08% | 134,467 | $626,617 | $606,446 | -$20,171 | -3.22% | |
| Ubs Group Ag | 0.00% | 126,649 | $590,184 | $571,187 | -$18,997 | -3.22% | |
| Ritholtz Wealth Management | 0.01% | 114,481 | $533,481 | $516,309 | -$17,172 | -3.22% | |
| Charles Schwab Investment Management Inc | 0.00% | 112,016 | $521,995 | $505,192 | -$16,803 | -3.22% | |
| Bank Of New York Mellon Corp | 0.00% | 111,867 | $521,299 | $504,520 | -$16,779 | -3.22% | |
| Jane Street Group, Llc | 0.00% | 111,773 | $520,862 | $504,096 | -$16,766 | -3.22% | |
| Coppell Advisory Solutions Llc | 0.04% | 29 | $519,645 | $131 | -$519,514 | -99.97% | |
| Quantinno Capital Management Lp | 0.00% | 106,140 | $494,612 | $478,691 | -$15,921 | -3.22% | |
| Capital Wealth Alliance, Llc | 0.22% | 103,970 | $484,500 | $468,905 | -$15,595 | -3.22% | |
| Jpmorgan Chase & Co | 0.00% | 89,571 | $417,402 | $403,965 | -$13,437 | -3.22% | |
| Fmr Llc | 0.00% | 75,735 | $352,925 | $341,565 | -$11,360 | -3.22% | |
| Gatepass Capital, Llc | 0.13% | 75,500 | $351,830 | $340,505 | -$11,325 | -3.22% | |
| Simplex Trading, Llc | 0.01% | 65,103 | $303,379 | $293,615 | -$9,764 | -3.22% | |
| State Of Wisconsin Investment Board | 0.00% | 56,519 | $263,379 | $254,901 | -$8,478 | -3.22% | |
| Cornerstone Investment Partners, Llc | 0.01% | 52,599 | $245,111 | $237,221 | -$7,890 | -3.22% | |
| Nuveen, Llc | 0.00% | 48,219 | $224,701 | $217,468 | -$7,233 | -3.22% | |
| Rhumbline Advisers | 0.00% | 44,731 | $208,435 | $201,737 | -$6,698 | -3.21% | |
| Alliancebernstein L.P. | 0.00% | 42,840 | $206,060 | $193,208 | -$12,852 | -6.24% | |
| Point72 Asset Management, L.P. | 0.00% | 42,410 | $197,631 | $191,269 | -$6,362 | -3.22% | |
| Jump Financial, Llc | 0.00% | 38,248 | $178,236 | $172,498 | -$5,738 | -3.22% | |
| Deutsche Bank Ag\ | 0.00% | 34,142 | $159,102 | $153,980 | -$5,122 | -3.22% | |
| Price T Rowe Associates Inc | 0.00% | 31,709 | $148,000 | $143,008 | -$4,992 | -3.37% | |
| Invesco Ltd. | 0.00% | 30,527 | $142,256 | $137,677 | -$4,579 | -3.22% |
Frequently asked questions about ACTG
Who owns the most ACTG stock?
The largest holders of ACTG are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ACACIA RESEARCH CORP (ACTG).
Is ACTG widely held by superinvestors?
Many widely followed stocks like ACTG appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ACTG is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.