undamentalytics Newsletter

Jasper Therapeutics, Inc.: which funds bought and sold

Institutions that bought and sold Jasper 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, 12 institutions that filed 13F reports for both quarters added to or opened positions in Jasper Therapeutics, and 30 cut or closed them. Together they sold a net 3.8M shares, −24.1% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 2.3M shares (−53.1%); index fund managers were net sellers of 120K shares (−6.1%). 3 opened a new position and 17 sold out entirely.

Bought, Q2 2026 12 institutions, 3 of them new holders Sold, Q2 2026 30 institutions, 17 of them sold out
Net change, all compared −3.8M shares (−24.1%)
Net change, active managers −2.3M shares (−53.1%), 3 bought, 9 sold

Buyers versus sellers

institutions compared, 60
Active managers and hedge funds 3 bought · 9 sold · −2.3M
Index fund managers 1 bought · 3 sold · −120K
Other institutions 8 bought · 18 sold · −1.4M

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Gsa Capital Partners LLP +516K +2701.8% 535K $225,000
Jane Street Group, LLC +80K +375.1% 102K $42,834
Renaissance Technologies LLC Hedge fund +60K +34.0% 238K $100,156
Qube Research & Technologies Ltd Hedge fund +34K New position 34K $14,197
Jain Global LLC Hedge fund +33K +184.0% 51K $21,549
Acorn Capital Advisors, LLC +27K +1.9% 1.4M $604,027
Group One Trading LLC +19K +2152.0% 20K $8,391
SG Americas Securities, LLC +11K New position 11K $4,000
Northern Trust Corp Index funds +7,306 +21.1% 42K $17,632
Osaic Holdings, Inc. +5,000 +12.2% 46K $19,298
Tower Research Capital LLC (TRC) +3,031 +48.1% 9,336 $3,930
Arax Advisory Partners +573 New position 573 $241

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Morgan Stanley −1.3M −99.9% 1,724 $726
Millennium Management LLC Hedge fund −1.1M −69.9% 487K $204,999
Boothbay Fund Management, LLC Hedge fund −583K Sold out 0 —
Jacobs Levy Equity Management, Inc Active manager −322K Sold out 0 —
Bank Of America Corp −279K −95.2% 14K $5,975
Soleus Capital Management, L.P. Hedge fund −276K Sold out 0 —
Knott David M Jr −161K Sold out 0 —
Verdad Advisers, LP −74K Sold out 0 —
Blackrock, Inc. Index funds −72K −29.9% 170K $71,413
Squarepoint Ops LLC Hedge fund −65K Sold out 0 —
Geode Capital Management, LLC Index funds −54K −17.0% 264K $111,086
Marshall Wace, LLP Hedge fund −46K Sold out 0 —
Nine Masts Capital Ltd −44K Sold out 0 —
Ieq Capital, LLC −38K −73.7% 14K $5,699
Readystate Asset Management LP −27K Sold out 0 —
UBS Group AG −22K −27.6% 59K $24,737
Panagora Asset Management Inc Active manager −22K Sold out 0 —
Dimensional Fund Advisors LP −19K Sold out 0 —
Engineers Gate Manager LP Hedge fund −13K −50.3% 13K $5,468
Susquehanna International Group, LLP −11K Sold out 0 —

New positions

largest by value
InstitutionSharesValue June 30, 2026
Qube Research & Technologies LtdHedge fund 34K $14,197
SG Americas Securities, LLC 11K $4,000
Arax Advisory Partners 573 $241

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Boothbay Fund Management, LLCHedge fund 583K $510,606
Jacobs Levy Equity Management, IncActive manager 322K $282,376
Soleus Capital Management, L.P.Hedge fund 276K $242,105
Knott David M Jr 161K $140,883
Verdad Advisers, LP 74K $64,810
Squarepoint Ops LLCHedge fund 65K $56,879
Marshall Wace, LLPHedge fund 46K $40,177
Nine Masts Capital Ltd 44K $38,697
Readystate Asset Management LP 27K $24,095
Panagora Asset Management IncActive manager 22K $18,876

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
43
Ten largest holders
87.9%
of 13F-reported shares
Index fund managers
15.3%
of 13F-reported shares
Active managers and hedge funds
17.2%
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 3 9 1 6 −2.3M −53.1%
Index fund managers 1 3 0 0 −120K −6.1%
Other institutions 8 18 2 11 −1.4M −14.4%

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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