Climb Bio, Inc.: which funds bought and sold
Institutions that bought and sold Climb Bio 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, 84 institutions that filed 13F reports for both quarters added to or opened positions in Climb Bio, and 40 cut or closed them. Together they added a net 24.0M shares, +74.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 15.8M shares (+76.8%); index fund managers were net buyers of 4.1M shares (+174.5%). 53 opened a new position and 22 sold out entirely.
Bought, Q2 2026 84 institutions, 53 of them new holders Sold, Q2 2026 40 institutions, 22 of them sold out
Net change, all compared +24.0M shares (+74.5%)
Net change, active managers +15.8M shares (+76.8%), 19 bought, 12 sold
Buyers versus sellers
84 bought 7 40 sold
Active managers and hedge funds 19 bought · 12 sold · +15.8M
Index fund managers 9 bought · 1 sold · +4.1M
Other institutions 56 bought · 27 sold · +4.2M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | +6.8M +106049.2% | 6.8M | $88.5M |
| UBS Group AG | +3.3M +3861.7% | 3.4M | $44.4M |
| Adage Capital Partners Gp, L.L.C. Hedge fund | +2.5M New position | 2.5M | $32.7M |
| Cormorant Asset Management, LP Hedge fund | +2.1M New position | 2.1M | $27.5M |
| Blackrock, Inc. Index funds | +2.0M +486.3% | 2.4M | $30.7M |
| Frontier Capital Management Co LLC Active manager | +1.9M New position | 1.9M | $25.3M |
| Woodline Partners LP Hedge fund | +1.6M New position | 1.6M | $20.6M |
| Braidwell LP Hedge fund | +1.3M +82.9% | 2.8M | $36.5M |
| Redmile Group, LLC | +1.2M New position | 1.2M | $16M |
| Citadel Advisors LLC Hedge fund | +952K +275.5% | 1.3M | $16.9M |
| Stempoint Capital LP | +743K New position | 743K | $9.7M |
| Ameriprise Financial Inc | +658K New position | 658K | $8.6M |
| Parkman Healthcare Partners LLC | +563K New position | 563K | $7.3M |
| State Street Corp Index funds | +555K +420.3% | 687K | $9M |
| Vanguard Capital Management LLC Index funds | +520K +44.1% | 1.7M | $22.2M |
| Geode Capital Management, LLC Index funds | +469K +149.9% | 782K | $10.2M |
| Invesco Ltd. | +373K New position | 373K | $4.9M |
| Superstring Capital Management LP | +322K +161.6% | 521K | $6.8M |
| Ikarian Capital, LLC | +300K New position | 300K | $3.9M |
| Affinity Asset Advisors, LLC | +272K +38.9% | 972K | $12.7M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | +6.8M +106049.2% | 6.8M | $88.5M |
| Adage Capital Partners Gp, L.L.C. Hedge fund | +2.5M New position | 2.5M | $32.7M |
| Cormorant Asset Management, LP Hedge fund | +2.1M New position | 2.1M | $27.5M |
| Frontier Capital Management Co LLC Active manager | +1.9M New position | 1.9M | $25.3M |
| Woodline Partners LP Hedge fund | +1.6M New position | 1.6M | $20.6M |
| Braidwell LP Hedge fund | +1.3M +82.9% | 2.8M | $36.5M |
| Citadel Advisors LLC Hedge fund | +952K +275.5% | 1.3M | $16.9M |
| ADAR1 Capital Management, LLC Hedge fund | +225K +37.6% | 823K | $10.7M |
| Price T Rowe Associates Inc Active manager | +210K +11.0% | 2.1M | $27.7M |
| Driehaus Capital Management LLC Active manager | +189K +31.5% | 790K | $10.3M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Mpm Bioimpact LLC | −2.6M Sold out | 0 | — |
| Kynam Capital Management, LP Hedge fund | −1.0M Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −773K Sold out | 0 | — |
| Silverarc Capital Management, LLC | −685K Sold out | 0 | — |
| Millennium Management LLC Hedge fund | −368K −28.8% | 908K | $11.8M |
| Susquehanna International Group, LLP | −357K −92.2% | 30K | $394,838 |
| Great Point Partners LLC | −334K −25.0% | 1.0M | $13M |
| Diadema Partners LP | −286K Sold out | 0 | — |
| Longaeva Partners L.P. | −218K Sold out | 0 | — |
| Two Sigma Investments, LP Hedge fund | −162K −52.3% | 148K | $1.9M |
| Seven Fleet Capital Management LP | −131K Sold out | 0 | — |
| Peapod Lane Capital LLC | −109K Sold out | 0 | — |
| Verdad Advisers, LP | −98K −68.1% | 46K | $601,340 |
| 683 Capital Management, LLC Hedge fund | −90K Sold out | 0 | — |
| Persistent Asset Partners Ltd | −72K Sold out | 0 | — |
| Goldman Sachs Group Inc | −67K −44.5% | 83K | $1.1M |
| Nan Fung Trinity (HK) Ltd | −60K −14.2% | 361K | $4.7M |
| Point72 Asset Management, L.P. Hedge fund | −59K Sold out | 0 | — |
| Brevan Howard Capital Management LP Hedge fund | −57K Sold out | 0 | — |
| Hudson Bay Capital Management LP Hedge fund | −54K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Kynam Capital Management, LP Hedge fund | −1.0M Sold out | 0 | — |
| Marshall Wace, LLP Hedge fund | −773K Sold out | 0 | — |
| Millennium Management LLC Hedge fund | −368K −28.8% | 908K | $11.8M |
| Two Sigma Investments, LP Hedge fund | −162K −52.3% | 148K | $1.9M |
| 683 Capital Management, LLC Hedge fund | −90K Sold out | 0 | — |
| Point72 Asset Management, L.P. Hedge fund | −59K Sold out | 0 | — |
| Brevan Howard Capital Management LP Hedge fund | −57K Sold out | 0 | — |
| Hudson Bay Capital Management LP Hedge fund | −54K Sold out | 0 | — |
| Renaissance Technologies LLC Hedge fund | −25K −11.3% | 193K | $2.5M |
| Squarepoint Ops LLC Hedge fund | −17K −39.6% | 26K | $338,466 |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Adage Capital Partners Gp, L.L.C.Hedge fund | 2.5M | $32.7M |
| Cormorant Asset Management, LPHedge fund | 2.1M | $27.5M |
| Frontier Capital Management Co LLCActive manager | 1.9M | $25.3M |
| Woodline Partners LPHedge fund | 1.6M | $20.6M |
| Redmile Group, LLC | 1.2M | $16M |
| Stempoint Capital LP | 743K | $9.7M |
| Ameriprise Financial Inc | 658K | $8.6M |
| Parkman Healthcare Partners LLC | 563K | $7.3M |
| Invesco Ltd. | 373K | $4.9M |
| Ikarian Capital, LLC | 300K | $3.9M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Mpm Bioimpact LLC | 2.6M | $17.8M |
| Kynam Capital Management, LPHedge fund | 1.0M | $6.9M |
| Marshall Wace, LLPHedge fund | 773K | $5.3M |
| Silverarc Capital Management, LLC | 685K | $4.7M |
| Diadema Partners LP | 286K | $2M |
| Longaeva Partners L.P. | 218K | $1.5M |
| Seven Fleet Capital Management LP | 131K | $894,980 |
| Peapod Lane Capital LLC | 109K | $739,799 |
| 683 Capital Management, LLCHedge fund | 90K | $616,500 |
| Persistent Asset Partners Ltd | 72K | $495,426 |
Who holds the shares
- Institutions reporting
- 109
- Ten largest holders
- 65.7% of 13F-reported shares
- Index fund managers
- 11.4% of 13F-reported shares
- Active managers and hedge funds
- 64.4% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 19 | 12 | 11 | 7 | +15.8M | +76.8% |
| Index fund managers | 9 | 1 | 2 | 1 | +4.1M | +174.5% |
| Other institutions | 56 | 27 | 40 | 14 | +4.2M | +44.5% |