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.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest 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% |
| SUVRETTA CAPITAL MANAGEMENT, 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 |
| SUVRETTA CAPITAL MANAGEMENT, 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 |
| UBS Group AG | Increased | 315.2K | 1.3M | +938.7K |
| BANK OF AMERICA CORP /DE/ | Increased | 126.6K | 1.0M | +916.5K |
| Qube Research & Technologies Ltd | Increased | 974.7K | 1.7M | +773.7K |
| TWO SIGMA INVESTMENTS, LP | Increased | 139.0K | 812.8K | +673.8K |
| Jump Financial, LLC | Increased | 369.8K | 1.0M | +635.2K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 543.2K | 1.1M | +560.1K |
| Y-Intercept (Hong Kong) Ltd | Increased | 153.3K | 681.8K | +528.5K |
| GOLDMAN SACHS GROUP INC | Increased | 571.9K | 1.1M | +522.5K |
| STATE STREET CORP | Increased | 1.5M | 2.0M | +487.2K |
| Assenagon Asset Management S.A. | Increased | 1.2M | 1.7M | +476.5K |
| Trexquant Investment LP | Sold Out | 453.5K | 0 | -453.5K |
| SILVERARC CAPITAL MANAGEMENT, LLC | Sold Out | 419.9K | 0 | -419.9K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 727.3K | 1.0M | +311.5K |
| Peapod Lane Capital LLC | New | 0 | 285.8K | +285.8K |
| Hennion & Walsh Asset Management, Inc. | New | 0 | 233.9K | +233.9K |
| DAFNA Capital Management LLC | Sold Out | 205.0K | 0 | -205.0K |
| Quadrature Capital Ltd | New | 0 | 189.1K | +189.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 599.4K | 782.1K | +182.8K |
| EntryPoint Capital, LLC | Increased | 45.2K | 217.2K | +172.0K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 1.1M | 960.5K | -169.7K |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 118.6K | 285.1K | +166.5K |
| STATE OF WISCONSIN INVESTMENT BOARD | Sold Out | 154.4K | 0 | -154.4K |
| PANAGORA ASSET MANAGEMENT INC | Reduced | 243.6K | 95.5K | -148.0K |
| XTX Topco Ltd | Increased | 71.6K | 209.2K | +137.6K |
| Verdad Advisers, LP | New | 0 | 125.2K | +125.2K |
| Engineers Gate Manager LP | Increased | 126.1K | 242.0K | +115.9K |
| Rangeley Capital, LLC | New | 0 | 114.9K | +114.9K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 14.1K | 119.0K | +104.9K |
| Headlands Technologies LLC | New | 0 | 89.7K | +89.7K |
| CANADA PENSION PLAN INVESTMENT BOARD | Increased | 18.4K | 102.4K | +84.0K |
| Atom Investors LP | Sold Out | 69.2K | 0 | -69.2K |
| ALGERT GLOBAL LLC | Increased | 33.1K | 101.4K | +68.3K |
| PRELUDE CAPITAL MANAGEMENT, LLC | New | 0 | 67.9K | +67.9K |
| ALPS ADVISORS INC | New | 0 | 67.6K | +67.6K |
| Susquehanna Portfolio Strategies, LLC | Increased | 19.3K | 85.6K | +66.3K |
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.