| 4 | BlackRock, Inc. | 2.6M | $12.1M | +7.9% | 2.689% | 0.00% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | $6.9M | -7.0% | 1.538% | 0.00% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 1.4M | $6.6M | +0.5% | 1.465% | 0.01% |
| 7 | GOLDMAN SACHS GROUP INC | 1.2M | $5.5M | +101.2% | 1.217% | 0.00% |
| 8 | Krilogy Financial LLC | 1.1M | $5.3M | +0.0% | 1.168% | 0.16% |
| 9 | Peapod Lane Capital LLC | 995K | $4.6M | -8.8% | 1.030% | 3.13% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 901K | $4.2M | +5.0% | 0.933% | 0.00% |
| 11 | Pacific Ridge Capital Partners, LLC | 811K | $3.8M | -0.8% | 0.840% | 0.69% |
| 12 | Formidable Asset Management, LLC | 793K | $3.7M | -5.5% | 0.821% | 0.59% |
| 13 | AMERICAN CENTURY COMPANIES INC | 693K | $3.2M | +35.6% | 0.718% | 0.00% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 629K | $2.9M | +4.3% | 0.651% | 0.05% |
| 15 | AEGIS FINANCIAL CORP | 491K | $2.3M | 0.0% | 0.508% | 0.36% |
| 16 | Empowered Funds, LLC | 366K | $1.7M | +7.6% | 0.379% | 0.01% |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 310K | $1.4M | +48.9% | 0.321% | 0.00% |
| 18 | NORTHERN TRUST CORP | 290K | $1.4M | +7.5% | 0.300% | 0.00% |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | 289K | $1.3M | +10.5% | 0.300% | 0.00% |
| 20 | CITADEL ADVISORS LLC | 250K | $1.2M | +7.1% | 0.258% | 0.00% |
| 21 | AQR CAPITAL MANAGEMENT LLC | 236K | $1.1M | +189.3% | 0.245% | 0.00% |
| 22 | VANGUARD FIDUCIARY TRUST CO | 235K | $1.1M | +6.3% | 0.244% | 0.00% |
| 23 | MORGAN STANLEY | 213K | $993K | -23.0% | 0.221% | 0.00% |
| 24 | FRANKLIN RESOURCES INC | 190K | $886K | +2.6% | 0.197% | 0.00% |
| 25 | CORSAIR CAPITAL MANAGEMENT, L.P. | 167K | $777K | 0.0% | 0.173% | 0.10% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ACTG — a direct measure of their conviction.
| 87.21% |
| 0.68 pp |
| $265M |
| 41% |
| Q4 2024 | 95 | 7.8% | 87.89% | +1.07 pp | $449M | +14% |
| Q3 2024 | 103 | — | 86.82% | — | $395M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
16 institutions opened new positions in ACTG during Q2 2026, while 10 fully exited. 41 added to existing positions and 64 trimmed.
ACTG institutional ownership rose by 0.44 percentage points quarter-over-quarter, with a net change of +5 holders.
The top 10 institutions account for 90.1% of all reported 13F value in ACTG, and the top 25 account for 97.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Acacia Research Corporation (ACTG) Institutional Ownership