Acacia Research
Acquires and operates IP, energy, industrial printing, and manufacturing businesses under Starboard-backed ownership.
$4.50
After-hours close+0.03 (+0.56%)
At close$4.48(−0.33%)
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Breakdown13F · Form 4
Institutions 87.72%84.72M sharesInsiders 1.70%1.64M sharesOther 10.58%10.22M shares
Shares outstanding 96.59M · Float 94.93M · 98.3% free float
Institutions13F, as of Mar 31, 2026
121 holders · 84.72M shares · 30 new positions · 69 increased · 30 reduced · 7 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Starboard Value LP | 61.12M | 63.28% | 0 | May 15, 2026 |
| State Street Corp | 3.11M | 3.21% | −40.9K | May 15, 2026 |
| Dimensional Fund Advisors LP | 2.85M | 2.95% | +95.1K | May 7, 2026 |
| BlackRock, Inc. | 2.41M | 2.49% | +42.5K | May 13, 2026 |
| Vanguard Capital Management LLC | 1.60M | 1.65% | +1.60Mnew | May 15, 2026 |
| Renaissance Technologies LLC | 1.41M | 1.46% | +12.3K | May 14, 2026 |
| Krilogy Financial LLC | 1.13M | 1.17% | −115.9K | Apr 17, 2026 |
| Peapod Lane Capital LLC | 1.09M | 1.13% | +245.4K | May 4, 2026 |
Beneficial owners13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Martin D. Jr. McNulty | director, officer: Chief Executive Officer | 418.4K | 0.43% | Jun 9, 2026 |
| Maureen Oconnell | director | 287.7K | 0.30% | Aug 20, 2026 |
| Jason W. Soncini | officer: General Counsel | 235.6K | 0.24% | Jun 9, 2026 |
| Gavin Molinelli | director | 206.0K | 0.21% | Jul 2, 2026 |
| Ajay Sundar | other: See Footnote 1 | 107.6K | 0.11% | Jun 25, 2026 |
| Geoffrey G. Ribar | director | 85.8K | 0.09% | Jun 3, 2025 |
| Kirsten Hoover | officer: Interim CFO | 84.7K | 0.09% | Jun 11, 2025 |
| Isaac T. Kohlberg | director | 78.3K | 0.08% | Aug 14, 2026 |
| Robert Rasamny | officer: Chief Administrative Officer | 74.0K | 0.08% | Jun 9, 2026 |
| Michelle Felman | director | 57.2K | 0.06% | Jun 25, 2026 |
24 people have not refiled in the last 18 months (4.69M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 19, 2026 | Maureen Oconnelldirector | Sale | 10,000 | $4.60 | 287,655 |
| Aug 12, 2026 | Isaac T. Kohlbergdirector | Sale | 32,188 | $4.67 | 78,310 |
CongressHouse and Senate disclosures
Not reported.