Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in FHTX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Flagship Pioneering, LLC | 12.7M | $61.8M | 0.0% | 21.586% | 4.02% |
| 2 | BVF INC/IL | 5.8M | $28.5M | 0.0% | 9.950% | 0.73% |
| 3 | FMR LLC | 5.7M | $27.8M | -5.6% | 9.718% | 0.00% |
| 4 | DEERFIELD MANAGEMENT COMPANY, L.P. | 4.4M | $21.4M | 0.0% | 7.484% | 0.22% |
| 5 | BlackRock, Inc. | 2.6M | $12.8M | +11.1% | 4.474% | 0.00% |
| 6 | RAYMOND JAMES FINANCIAL INC | 2.5M | $12.2M | -4.3% | 4.241% | 0.00% |
| 7 | Euclidean Capital LLC | 1.6M | $7.7M | 0.0% | 2.680% | 1.75% |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 1.5M | $7.3M | -0.0% | 2.546% | 0.00% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 911K | $4.4M | +7.4% | 1.551% | 0.00% |
| 10 | Siren, L.L.C. | 721K | $3.5M | 0.0% | 1.228% | 0.07% |
| 11 | STATE STREET CORP | 697K | $3.4M | +2.6% | 1.188% | 0.00% |
| 12 | AMERIPRISE FINANCIAL INC | 559K | $2.7M | +24.4% | 0.951% | 0.00% |
| 13 | RENAISSANCE TECHNOLOGIES LLC | 378K | $1.8M | -7.0% | 0.644% | 0.00% |
| 14 | Candriam S.C.A. | 314K | $1.5M | 0.0% | 0.534% | 0.01% |
| 15 | NORTHERN TRUST CORP | 310K | $1.5M | +12.3% | 0.528% | 0.00% |
| 16 | JACOBS LEVY EQUITY MANAGEMENT, INC | 305K | $1.5M | +0.5% | 0.520% | 0.01% |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | 304K | $1.5M | +18.9% | 0.519% | 0.00% |
| 18 | Birchview Capital, LP | 282K | $1.4M | +0.1% | 0.480% | 0.64% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 264K | $1.3M | +9.9% | 0.450% | 0.00% |
| 20 | Qube Research & Technologies Ltd | 203K | $992K | +150.1% | 0.346% | 0.00% |
| 21 | Woodline Partners LP | 202K | $986K | +12.1% | 0.344% | 0.00% |
| 22 | B Group, Inc. | 200K | $976K | +96.1% | 0.341% | 0.46% |
| 23 | PANAGORA ASSET MANAGEMENT INC | 175K | $856K | +52.4% | 0.299% | 0.00% |
| 24 | GOLDMAN SACHS GROUP INC | 164K | $802K | +20.7% | 0.280% | 0.00% |
| 25 | CITADEL ADVISORS LLC | 159K | $775K | -20.6% | 0.271% | 0.00% |
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 FHTX — a direct measure of their conviction.
Filings activity in FHTX during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 102 | 2.9% | 76.51% | +0.82 pp | $219M | +3.1% |
| Q1 2026 | 105 | +13% | 75.69% | +1.78 pp | $212M | 6.1% |
| Q4 2025 | 93 | +6.9% | 73.91% | +1.57 pp | $226M | +13% |
| Q3 2025 | 87 | +6.1% | 72.34% | 1.07 pp | $200M | +4.2% |
| Q2 2025 | 82 | 8.9% | 73.41% | +0.88 pp | $192M | +30% |
| Q1 2025 | 90 | +3.4% | 72.53% | +0.14 pp | $147M | 22% |
| Q4 2024 | 87 | +10% | 72.39% | +0.59 pp | $189M | 49% |
| Q3 2024 | 79 | — | 71.80% | — | $371M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying FHTX stock.
Based on Q2 2026 13F filings, institutional ownership of Foghorn Therapeutics Inc. stands at 76.5%, held across 102 reporting institutions.
Flagship Pioneering, LLC is the largest reported institutional holder of FHTX, with approximately 12,674,120 shares worth $0.06B as of Q2 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of FHTX, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for FHTX is 56 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
13 institutions opened new positions in FHTX during Q2 2026, while 14 fully exited. 64 added to existing positions and 22 trimmed.
FHTX institutional ownership rose by 0.82 percentage points quarter-over-quarter, with a net change of -3 holders.
The top 10 institutions account for 85.7% of all reported 13F value in FHTX, and the top 25 account for 95.8%.
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.
Foghorn Therapeutics Inc. (FHTX) Institutional Ownership