FULC Fulcrum Therapeutics, Inc.
Fulcrum Therapeutics, Inc. (FULC) Institutional Ownership
What the institutions did with FULC last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| Nantahala Capital Management, LLC | 11.0M | 12.8% |
| BlackRock, Inc. | 8.8M | 10.3% |
| EcoR1 Capital, LLC | 6.5M | 7.6% |
| TANG CAPITAL MANAGEMENT LLC | 6.5M | 7.6% |
| MONTANOVA CAPITAL, LLC | 3.7M | 4.3% |
| D. E. Shaw & Co., Inc. | 3.0M | 3.5% |
| CITADEL ADVISORS LLC | 2.7M | 3.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.7M | 3.1% |
| JANE STREET GROUP, LLC | 2.2M | 2.6% |
| STATE STREET CORP | 2.0M | 2.4% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2.0M | 2.3% |
| GSK plc | 1.8M | 2.1% |
| Qube Research & Technologies Ltd | 1.7M | 2.0% |
| Assenagon Asset Management S.A. | 1.7M | 1.9% |
| RENAISSANCE TECHNOLOGIES LLC | 1.6M | 1.9% |
| ADAR1 Capital Management, LLC | 1.6M | 1.8% |
| MILLENNIUM MANAGEMENT LLC | 1.5M | 1.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.4M | 1.7% |
| MARSHALL WACE, LLP | 1.4M | 1.6% |
| UBS Group AG | 1.3M | 1.5% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.2M | 1.4% |
| AQR CAPITAL MANAGEMENT LLC | 1.1M | 1.3% |
| GOLDMAN SACHS GROUP INC | 1.1M | 1.3% |
| Ikarian Capital, LLC | 1.0M | 1.2% |
| BANK OF AMERICA CORP /DE/ | 1.0M | 1.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Nantahala Capital Management, LLC | Increased | 3.1M | 11.0M | +7.9M |
| EcoR1 Capital, LLC | New | 0 | 6.5M | +6.5M |
| TANG CAPITAL MANAGEMENT LLC | New | 0 | 6.5M | +6.5M |
| RA CAPITAL MANAGEMENT, L.P. | Sold Out | 6.1M | 0 | -6.1M |
| TCG Crossover Management, LLC | Sold Out | 5.3M | 0 | -5.3M |
| BlackRock, Inc. | Increased | 5.4M | 8.8M | +3.4M |
| BRAIDWELL LP | Sold Out | 3.1M | 0 | -3.1M |
| MONTANOVA CAPITAL, LLC | Reduced | 6.6M | 3.7M | -2.9M |
| Siren, L.L.C. | Sold Out | 2.4M | 0 | -2.4M |
| First Turn Management, LLC | Sold Out | 2.3M | 0 | -2.3M |
| Aberdeen Group plc | Sold Out | 2.2M | 0 | -2.2M |
| JANE STREET GROUP, LLC | Increased | 310.4K | 2.2M | +1.9M |
| Jones Hill Capital LP | Sold Out | 1.8M | 0 | -1.8M |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 13.6K | 1.6M | +1.6M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Increased | 400.0K | 2.0M | +1.6M |
| ADAR1 Capital Management, LLC | Increased | 130.6K | 1.6M | +1.4M |
| Point72 Asset Management, L.P. | Reduced | 2.1M | 651.4K | -1.4M |
| D. E. Shaw & Co., Inc. | Increased | 1.6M | 3.0M | +1.4M |
| CITADEL ADVISORS LLC | Increased | 1.3M | 2.7M | +1.4M |
| MARSHALL WACE, LLP | New | 0 | 1.4M | +1.4M |
| Alyeska Investment Group, L.P. | Sold Out | 1.3M | 0 | -1.3M |
| MILLENNIUM MANAGEMENT LLC | Increased | 356.5K | 1.5M | +1.1M |
| Vestal Point Capital, LP | Sold Out | 1.1M | 0 | -1.1M |
| Balyasny Asset Management L.P. | Reduced | 1.8M | 692.4K | -1.1M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 101.3K | 1.2M | +1.1M |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.