Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in AGEN held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.6M | $7.8M | +370.1% | 6.159% | 0.00% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 1.7M | $5.1M | +16.4% | 4.025% | 0.00% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4M | $4.4M | +19.4% | 3.428% | 0.00% |
| 4 | Siren, L.L.C. | 1.1M | $3.3M | 0.0% | 2.556% | 0.07% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 1.0M | $3.2M | +197.1% | 2.486% | 0.00% |
| 6 | MACKENZIE FINANCIAL CORP | 714K | $2.2M | β | 1.715% | 0.00% |
| 7 | GOLDMAN SACHS GROUP INC | 448K | $1.4M | +1325.5% | 1.077% | 0.00% |
| 8 | MARSHALL WACE, LLP | 440K | $1.3M | -36.1% | 1.056% | 0.00% |
| 9 | RAYMOND JAMES FINANCIAL INC | 430K | $1.3M | +79.5% | 1.033% | 0.00% |
| 10 | GLOBEFLEX CAPITAL L P | 419K | $1.3M | β | 1.005% | 0.16% |
| 11 | STATE STREET CORP | 412K | $1.3M | +164.0% | 0.990% | 0.00% |
| 12 | Man Group plc | 340K | $1.0M | +22.0% | 0.818% | 0.00% |
| 13 | NORTHERN TRUST CORP | 314K | $961K | +250.0% | 0.754% | 0.00% |
| 14 | Connor, Clark & Lunn Investment Management Ltd. | 310K | $949K | +56.2% | 0.745% | 0.00% |
| 15 | VANGUARD FIDUCIARY TRUST CO | 272K | $831K | +35.5% | 0.652% | 0.00% |
| 16 | MORGAN STANLEY | 262K | $802K | -11.4% | 0.629% | 0.00% |
| 17 | RENAISSANCE TECHNOLOGIES LLC | 228K | $699K | -20.1% | 0.548% | 0.00% |
| 18 | PANAGORA ASSET MANAGEMENT INC | 180K | $550K | +10.1% | 0.431% | 0.00% |
| 19 | Susquehanna Portfolio Strategies, LLC | 159K | $486K | β | 0.381% | 0.01% |
| 20 | Jump Financial, LLC | 104K | $318K | -33.9% | 0.250% | 0.00% |
| 21 | Bank of New York Mellon Corp | 102K | $311K | β | 0.244% | 0.00% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 99K | $304K | +562.6% | 0.239% | 0.00% |
| 23 | TWO SIGMA INVESTMENTS, LP | 99K | $302K | -42.3% | 0.237% | 0.00% |
| 24 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 86K | $263K | -36.2% | 0.206% | 0.00% |
| 25 | STRS OHIO | 77K | $235K | β | 0.185% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in AGEN β a direct measure of their conviction.
Filings activity in AGEN during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 106 | +19% | 34.50% | +11.95 pp | $44M | +43% |
| Q1 2026 | 89 | 6.3% | 22.55% | 32.12 pp | $31M | 53% |
| Q4 2025 | 95 | +10% | 54.67% | +29.03 pp | $66M | +92% |
| Q3 2025 | 86 | 5.5% | 25.64% | 0.47 pp | $34M | 11% |
| Q2 2025 | 91 | +5.8% | 26.11% | 3.55 pp | $38M | +201% |
| Q1 2025 | 86 | +2.4% | 29.66% | 21.51 pp | $13M | 55% |
| Q4 2024 | 84 | 12% | 51.17% | +13.08 pp | $28M | 40% |
| Q3 2024 | 95 | β | 38.09% | β | $47M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AGEN stock.
Based on Q2 2026 13F filings, institutional ownership of Agenus Inc. stands at 34.5%, held across 106 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AGEN, with approximately 2,564,884 shares worth $0.01B as of Q2 2026.
Yes β 4 widely-followed marquee investors appear among the top 25 institutional holders of AGEN, including RENAISSANCE TECHNOLOGIES LLC, Susquehanna Portfolio Strategies, LLC, TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for AGEN is 77 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
33 institutions opened new positions in AGEN during Q2 2026, while 15 fully exited. 29 added to existing positions and 41 trimmed.
AGEN institutional ownership rose by 11.95 percentage points quarter-over-quarter, with a net change of +17 holders.
The top 10 institutions account for 71.7% of all reported 13F value in AGEN, and the top 25 account for 93.0%.
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.
Agenus Inc. (AGEN) Institutional Ownership