undamentalytics Newsletter

Biodesix Inc: which funds bought and sold

Institutions that bought and sold Biodesix 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, 24 institutions that filed 13F reports for both quarters added to or opened positions in Biodesix, and 18 cut or closed them. Together they added a net 357K shares, +9.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 409K shares (+55.9%); index fund managers were net buyers of 90K shares (+24.0%). 10 opened a new position and 5 sold out entirely.

Bought, Q2 2026 24 institutions, 10 of them new holders Sold, Q2 2026 18 institutions, 5 of them sold out
Net change, all compared +357K shares (+9.8%)
Net change, active managers +409K shares (+55.9%), 9 bought, 3 sold

Buyers versus sellers

institutions compared, 48
Active managers and hedge funds 9 bought · 3 sold · +409K
Index fund managers 5 bought · 0 sold · +90K
Other institutions 10 bought · 15 sold · −143K

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Soleus Capital Management, L.P. Hedge fund +169K +40.7% 586K $13.2M
Essex Investment Management Co LLC +110K +83.1% 242K $5.5M
Perceptive Advisors LLC Hedge fund +109K New position 109K $2.5M
Jane Street Group, LLC +64K +238.5% 92K $2.1M
Walleye Capital LLC Hedge fund +64K +586.8% 74K $1.7M
Two Sigma Investments, LP Hedge fund +42K +92.0% 87K $2M
Vanguard Capital Management LLC Index funds +29K +11.4% 284K $6.4M
Bank Of America Corp +27K New position 27K $602,942
Quadrature Capital Ltd Hedge fund +25K New position 25K $558,473
Blackrock, Inc. Index funds +19K +75.9% 43K $970,236
Geode Capital Management, LLC Index funds +18K +35.3% 68K $1.5M
Renaissance Technologies LLC Hedge fund +17K +139.8% 29K $646,012
Squarepoint Ops LLC Hedge fund +16K New position 16K $354,238
Bridgeway Capital Management, LLC Active manager +15K +135.9% 26K $587,089
Blair William & Co +14K +50.6% 42K $936,907
Northern Trust Corp Index funds +14K New position 14K $312,520
Vanguard Fiduciary Trust Co Index funds +11K +39.4% 40K $901,075
Cannell & Spears LLC +8,921 New position 8,921 $201,169
Gsa Capital Partners LLP +7,583 +19.2% 47K $1.1M
Barclays PLC +313 New position 313 $7,058

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Aigh Capital Management LLC −80K −10.5% 678K $15.3M
Stempoint Capital LP −70K −50.0% 70K $1.6M
Aberdeen Group PLC −70K −15.2% 389K $8.8M
Opaleye Management Inc. −58K −24.4% 180K $4.1M
Morgan Stanley −32K −99.8% 61 $1,376
Marshall Wace, LLP Hedge fund −25K −18.0% 116K $2.6M
Susquehanna International Group, LLP −23K Sold out 0 —
HRT Financial LP −15K Sold out 0 —
Cetera Investment Advisers −12K Sold out 0 —
Trexquant Investment LP Hedge fund −12K −16.7% 58K $1.3M
Millennium Management LLC Hedge fund −9,602 −40.0% 14K $324,810
UBS Group AG −6,900 −18.7% 30K $674,426
Sei Investments Co −5,729 −13.3% 37K $841,002
BNP Paribas Financial Markets −806 −87.2% 118 $2,661
Thompson Davis & Co., Inc. −400 −3.4% 11K $255,943
Perkins Capital Management Inc −165 −0.4% 45K $1M
Group One Trading LLC −100 Sold out 0 —
Tower Research Capital LLC (TRC) −1 Sold out 0 —

New positions

largest by value
InstitutionSharesValue June 30, 2026
Perceptive Advisors LLCHedge fund 109K $2.5M
Bank Of America Corp 27K $602,942
Quadrature Capital LtdHedge fund 25K $558,473
Squarepoint Ops LLCHedge fund 16K $354,238
Northern Trust CorpIndex funds 14K $312,520
Cannell & Spears LLC 8,921 $201,169
Barclays PLC 313 $7,058
Pflug Koory, LLC 250 $5,638
Citigroup Inc 58 $1,308
Jpmorgan Chase & Co 43 $1,024

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Susquehanna International Group, LLP 23K $334,805
HRT Financial LP 15K $223,000
Cetera Investment Advisers 12K $174,000
Group One Trading LLC 100 $1,450
Tower Research Capital LLC (TRC) 1 $14

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
43
Ten largest holders
79.1%
of 13F-reported shares
Index fund managers
11.7%
of 13F-reported shares
Active managers and hedge funds
28.5%
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 9 3 3 0 +409K +55.9%
Index fund managers 5 0 1 0 +90K +24.0%
Other institutions 10 15 6 5 −143K −5.6%

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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