Fulcrum Therapeutics, Inc.: which funds bought and sold
Institutions that bought and sold Fulcrum Therapeutics shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 103 institutions that filed 13F reports for both quarters added to or opened positions in Fulcrum Therapeutics, and 75 cut or closed them. Together they added a net 14.1M shares, +19.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 16.1M shares (+48.1%); index fund managers were net buyers of 4.1M shares (+31.5%). 29 opened a new position and 42 sold out entirely.
Bought, Q2 2026 103 institutions, 29 of them new holders Sold, Q2 2026 75 institutions, 42 of them sold out
Net change, all compared +14.1M shares (+19.7%)
Net change, active managers +16.1M shares (+48.1%), 25 bought, 18 sold
Buyers versus sellers
103 bought 19 75 sold
Active managers and hedge funds 25 bought · 18 sold · +16.1M
Index fund managers 9 bought · 3 sold · +4.1M
Other institutions 69 bought · 54 sold · −6.1M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Nantahala Capital Management, LLC Hedge fund | +7.9M +259.0% | 11.0M | $40.1M |
| Ecor1 Capital, LLC Hedge fund | +6.5M New position | 6.5M | $24M |
| Tang Capital Management LLC Hedge fund | +6.5M New position | 6.5M | $23.9M |
| Blackrock, Inc. Index funds | +3.4M +63.7% | 8.8M | $32.3M |
| Jane Street Group, LLC | +1.9M +614.4% | 2.2M | $8.1M |
| Renaissance Technologies LLC Hedge fund | +1.6M +12016.2% | 1.6M | $6M |
| Adage Capital Partners Gp, L.L.C. Hedge fund | +1.6M +400.0% | 2.0M | $7.3M |
| ADAR1 Capital Management, LLC Hedge fund | +1.4M +1098.7% | 1.6M | $5.7M |
| D. E. Shaw & Co., Inc. Hedge fund | +1.4M +87.5% | 3.0M | $11.1M |
| Citadel Advisors LLC Hedge fund | +1.4M +109.2% | 2.7M | $9.9M |
| Marshall Wace, LLP Hedge fund | +1.4M New position | 1.4M | $5M |
| Millennium Management LLC Hedge fund | +1.1M +316.8% | 1.5M | $5.4M |
| Susquehanna International Group, LLP | +1.1M +1065.4% | 1.2M | $4.3M |
| UBS Group AG | +939K +297.8% | 1.3M | $4.6M |
| Bank Of America Corp | +916K +724.1% | 1.0M | $3.8M |
| Qube Research & Technologies Ltd Hedge fund | +774K +79.4% | 1.7M | $6.4M |
| Two Sigma Investments, LP Hedge fund | +674K +484.7% | 813K | $3M |
| Jump Financial, LLC | +635K +171.8% | 1.0M | $3.7M |
| AQR Capital Management LLC Hedge fund | +560K +103.1% | 1.1M | $4M |
| Y-Intercept (Hong Kong) Ltd | +528K +344.6% | 682K | $2.5M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Nantahala Capital Management, LLC Hedge fund | +7.9M +259.0% | 11.0M | $40.1M |
| Ecor1 Capital, LLC Hedge fund | +6.5M New position | 6.5M | $24M |
| Tang Capital Management LLC Hedge fund | +6.5M New position | 6.5M | $23.9M |
| Renaissance Technologies LLC Hedge fund | +1.6M +12016.2% | 1.6M | $6M |
| Adage Capital Partners Gp, L.L.C. Hedge fund | +1.6M +400.0% | 2.0M | $7.3M |
| ADAR1 Capital Management, LLC Hedge fund | +1.4M +1098.7% | 1.6M | $5.7M |
| D. E. Shaw & Co., Inc. Hedge fund | +1.4M +87.5% | 3.0M | $11.1M |
| Citadel Advisors LLC Hedge fund | +1.4M +109.2% | 2.7M | $9.9M |
| Marshall Wace, LLP Hedge fund | +1.4M New position | 1.4M | $5M |
| Millennium Management LLC Hedge fund | +1.1M +316.8% | 1.5M | $5.4M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| RA Capital Management, L.P. Hedge fund | −6.1M Sold out | 0 | — |
| Tcg Crossover Management, LLC | −5.3M Sold out | 0 | — |
| Braidwell LP Hedge fund | −3.1M Sold out | 0 | — |
| Montanova Capital, LLC Hedge fund | −2.9M −43.9% | 3.7M | $13.5M |
| Siren, L.L.C. | −2.4M Sold out | 0 | — |
| First Turn Management, LLC | −2.3M Sold out | 0 | — |
| Aberdeen Group PLC | −2.2M Sold out | 0 | — |
| Jones Hill Capital LP | −1.8M Sold out | 0 | — |
| Point72 Asset Management, L.P. Hedge fund | −1.4M −68.6% | 651K | $2.4M |
| Alyeska Investment Group, L.P. Hedge fund | −1.3M Sold out | 0 | — |
| Vestal Point Capital, LP Hedge fund | −1.1M Sold out | 0 | — |
| Balyasny Asset Management L.P. Hedge fund | −1.1M −61.1% | 692K | $2.5M |
| Trexquant Investment LP Hedge fund | −454K Sold out | 0 | — |
| Silverarc Capital Management, LLC | −420K Sold out | 0 | — |
| Dafna Capital Management LLC | −205K Sold out | 0 | — |
| Dimensional Fund Advisors LP | −170K −15.0% | 961K | $3.5M |
| State Of Wisconsin Investment Board | −154K Sold out | 0 | — |
| Panagora Asset Management Inc Active manager | −148K −60.8% | 96K | $349,607 |
| Atom Investors LP | −69K Sold out | 0 | — |
| Geode Capital Management, LLC Index funds | −54K −3.7% | 1.4M | $5.2M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| RA Capital Management, L.P. Hedge fund | −6.1M Sold out | 0 | — |
| Braidwell LP Hedge fund | −3.1M Sold out | 0 | — |
| Montanova Capital, LLC Hedge fund | −2.9M −43.9% | 3.7M | $13.5M |
| Point72 Asset Management, L.P. Hedge fund | −1.4M −68.6% | 651K | $2.4M |
| Alyeska Investment Group, L.P. Hedge fund | −1.3M Sold out | 0 | — |
| Vestal Point Capital, LP Hedge fund | −1.1M Sold out | 0 | — |
| Balyasny Asset Management L.P. Hedge fund | −1.1M −61.1% | 692K | $2.5M |
| Trexquant Investment LP Hedge fund | −454K Sold out | 0 | — |
| Panagora Asset Management Inc Active manager | −148K −60.8% | 96K | $349,607 |
| Burkehill Global Management, LP Hedge fund | −50K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Ecor1 Capital, LLCHedge fund | 6.5M | $24M |
| Tang Capital Management LLCHedge fund | 6.5M | $23.9M |
| Marshall Wace, LLPHedge fund | 1.4M | $5M |
| Peapod Lane Capital LLC | 286K | $1M |
| Hennion & Walsh Asset Management, Inc. | 234K | $855,895 |
| Quadrature Capital LtdHedge fund | 189K | $692,176 |
| Verdad Advisers, LP | 125K | $458,320 |
| Rangeley Capital, LLC | 115K | $420,497 |
| Headlands Technologies LLC | 90K | $328,386 |
| Prelude Capital Management, LLC | 68K | $248,357 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| RA Capital Management, L.P.Hedge fund | 6.1M | $46.4M |
| Tcg Crossover Management, LLC | 5.3M | $40.3M |
| Braidwell LPHedge fund | 3.1M | $24M |
| Siren, L.L.C. | 2.4M | $18M |
| First Turn Management, LLC | 2.3M | $17.3M |
| Aberdeen Group PLC | 2.2M | $17M |
| Jones Hill Capital LP | 1.8M | $13.6M |
| Alyeska Investment Group, L.P.Hedge fund | 1.3M | $10.2M |
| Vestal Point Capital, LPHedge fund | 1.1M | $8.4M |
| Trexquant Investment LPHedge fund | 454K | $3.5M |
Who holds the shares
- Institutions reporting
- 155
- Ten largest holders
- 57.4% of 13F-reported shares
- Index fund managers
- 20.0% of 13F-reported shares
- Active managers and hedge funds
- 57.7% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 25 | 18 | 6 | 9 | +16.1M | +48.1% |
| Index fund managers | 9 | 3 | 1 | 1 | +4.1M | +31.5% |
| Other institutions | 69 | 54 | 22 | 32 | −6.1M | −24.1% |
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