undamentalytics Newsletter

Jade Biosciences, Inc.: which funds bought and sold

Institutions that bought and sold Jade Biosciences 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, 109 institutions that filed 13F reports for both quarters added to or opened positions in Jade Biosciences, and 42 cut or closed them. Together they added a net 17.9M shares, +37.1% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 10.1M shares (+58.2%); index fund managers were net buyers of 3.2M shares (+50.3%). 49 opened a new position and 16 sold out entirely.

Bought, Q2 2026 109 institutions, 49 of them new holders Sold, Q2 2026 42 institutions, 16 of them sold out
Net change, all compared +17.9M shares (+37.1%)
Net change, active managers +10.1M shares (+58.2%), 26 bought, 11 sold

Buyers versus sellers

institutions compared, 165
Active managers and hedge funds 26 bought · 11 sold · +10.1M
Index fund managers 10 bought · 0 sold · +3.2M
Other institutions 73 bought · 31 sold · +4.5M

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Paradigm Biocapital Advisors LP +2.9M New position 2.9M $63.5M
Franklin Resources Inc Active manager +2.8M New position 2.8M $62M
FMR LLC Active manager +2.0M +28.8% 9.1M $203M
Adage Capital Partners Gp, L.L.C. Hedge fund +1.9M New position 1.9M $42.5M
Polar Capital Holdings PLC Active manager +1.8M New position 1.8M $41M
State Street Corp Index funds +1.7M +256.2% 2.3M $51.9M
Jpmorgan Chase & Co +1.5M +9198.9% 1.5M $32.6M
Citadel Advisors LLC Hedge fund +792K +577.3% 929K $20.7M
Soleus Capital Management, L.P. Hedge fund +754K +94.6% 1.6M $34.5M
Pictet Asset Management Holding SA +734K New position 734K $16.3M
Logos Global Management LP Hedge fund +725K +181.2% 1.1M $25M
Goldman Sachs Group Inc +582K +380.4% 735K $16.3M
Foresite Capital Management Vi LLC +567K +177.1% 887K $19.7M
Blackrock, Inc. Index funds +488K +21.1% 2.8M $62.2M
Balyasny Asset Management L.P. Hedge fund +476K +118.3% 879K $19.5M
Bank Of America Corp +448K +1161.6% 487K $10.8M
Vanguard Capital Management LLC Index funds +448K +24.9% 2.2M $49.9M
Walleye Capital LLC Hedge fund +365K New position 365K $8.1M
Vanguard Portfolio Management LLC Index funds +250K +118.4% 462K $10.3M
Lord, Abbett & Co. LLC +227K New position 227K $5M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Avidity Partners Management LP −1.1M −39.3% 1.7M $37.8M
Great Point Partners LLC −964K Sold out 0 —
Driehaus Capital Management LLC Active manager −635K Sold out 0 —
RTW Investments, LP Hedge fund −573K Sold out 0 —
Versant Venture Management, LLC −534K −35.0% 992K $22M
Bellevue Group AG −444K −12.7% 3.1M $67.9M
Baker Bros. Advisors LP Hedge fund −411K −25.0% 1.2M $27.3M
Marshall Wace, LLP Hedge fund −359K −38.0% 586K $13M
Stempoint Capital LP −308K Sold out 0 —
Opaleye Management Inc. −283K −66.1% 145K $3.2M
Aberdeen Group PLC −246K −28.4% 621K $13.8M
Samsara Biocapital, LLC −233K −24.0% 736K $16.4M
Orbimed Advisors LLC −185K Sold out 0 —
Point72 Asset Management, L.P. Hedge fund −97K −36.7% 167K $3.7M
Ikarian Capital, LLC −85K −16.6% 427K $9.5M
Renaissance Technologies LLC Hedge fund −61K −45.5% 74K $1.6M
Wellington Management Group LLP Active manager −39K −30.0% 90K $2M
Boothbay Fund Management, LLC Hedge fund −27K −19.5% 113K $2.5M
Y-Intercept (Hong Kong) Ltd −25K Sold out 0 —
Qube Research & Technologies Ltd Hedge fund −25K Sold out 0 —

New positions

largest by value
InstitutionSharesValue June 30, 2026
Paradigm Biocapital Advisors LP 2.9M $63.5M
Franklin Resources IncActive manager 2.8M $62M
Adage Capital Partners Gp, L.L.C.Hedge fund 1.9M $42.5M
Polar Capital Holdings PLCActive manager 1.8M $41M
Pictet Asset Management Holding SA 734K $16.3M
Walleye Capital LLCHedge fund 365K $8.1M
Lord, Abbett & Co. LLC 227K $5M
Ameriprise Financial Inc 107K $2.4M
Woodline Partners LPHedge fund 100K $2.2M
Seven Grand Managers, LLC 100K $2.2M

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Great Point Partners LLC 964K $13.6M
Driehaus Capital Management LLCActive manager 635K $8.9M
RTW Investments, LPHedge fund 573K $8.1M
Stempoint Capital LP 308K $4.3M
Orbimed Advisors LLC 185K $2.6M
Y-Intercept (Hong Kong) Ltd 25K $353,091
Qube Research & Technologies LtdHedge fund 25K $348,328
HRT Financial LP 24K $343,000
ADAR1 Capital Management, LLCHedge fund 20K $281,000
Gsa Capital Partners LLP 20K $275,000

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
151
Ten largest holders
55.8%
of 13F-reported shares
Index fund managers
13.2%
of 13F-reported shares
Active managers and hedge funds
37.8%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 26 11 13 5 +10.1M +58.2%
Index fund managers 10 0 1 0 +3.2M +50.3%
Other institutions 73 31 35 11 +4.5M +18.6%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

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