BIODESIX INC (BDSX) Institutional Ownership Changes & 13F Activity

BIODESIX INC (BDSX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Soleus Capital Management, L.P., Essex Investment Management Co Llc, Perceptive Advisors Llc, Aigh Capital Management Llc, and Jane Street Group, Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Perceptive Advisors LlcBuy+108,694—108,694$2.45MQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+64,475+238.5%91,506$2.06MQ2 2026Aug 14, 2026
Opaleye Management Inc.Sell-58,047-24.4%180,000$4.06MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+41,593+92.0%86,824$1.96MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+26,738—26,738$602.94KQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+15,709—15,709$354.24KQ2 2026Aug 14, 2026
Bridgeway Capital Management, LlcBuy+15,000+135.9%26,035$587.09KQ2 2026Aug 14, 2026
Trexquant Investment LpSell-11,629-16.7%57,972$1.31MQ2 2026Aug 14, 2026
Millennium Management LlcSell-9,602-40.0%14,404$324.81KQ2 2026Aug 14, 2026
Sei Investments CoSell-5,729-13.3%37,295$841.00KQ2 2026Aug 14, 2026
Barclays PlcBuy+313—313$7.06KQ2 2026Aug 14, 2026
Stempoint Capital LpSell-4-0.0%70,000$1.58MQ2 2026Aug 14, 2026
Morgan StanleySell-32,331-99.8%61$1.38KQ2 2026Aug 13, 2026
Vanguard Capital Management LlcBuy+29,008+11.4%284,169$6.41MQ2 2026Aug 13, 2026
Marshall Wace, LlpSell-25,437-18.0%116,199$2.62MQ2 2026Aug 13, 2026
Renaissance Technologies LLCBuy+16,700+139.8%28,648$646.01KQ2 2026Aug 13, 2026
Northern Trust CorpBuy+13,859—13,859$312.52KQ2 2026Aug 13, 2026
Vanguard Fiduciary Trust CoBuy+11,299+39.4%39,959$901.08KQ2 2026Aug 13, 2026
Ubs Group AgSell-6,900-18.7%29,908$674.43KQ2 2026Aug 13, 2026
Bnp Paribas Financial MarketsSell-806-87.2%118$2.66KQ2 2026Aug 13, 2026
Fmr LlcBuy+94+9400.0%95$2.15KQ2 2026Aug 13, 2026
Geode Capital Management, LlcBuy+17,659+35.3%67,657$1.53MQ2 2026Aug 12, 2026
Jpmorgan Chase & CoBuy+43—43$1.02KQ2 2026Aug 12, 2026
Soleus Capital Management, L.P.Buy+169,359+40.7%585,958$13.21MQ2 2026Aug 11, 2026
Blair William & Co/IlBuy+13,965+50.6%41,548$936.91KQ2 2026Aug 11, 2026
Cannell & Spears LlcBuy+8,921—8,921$201.17KQ2 2026Aug 11, 2026
Aigh Capital Management LlcSell-80,000-10.5%678,328$15.30MQ2 2026Aug 07, 2026
Quadrature Capital LtdBuy+24,766—24,766$558.47KQ2 2026Aug 07, 2026
Blackrock, Inc.Buy+18,560+75.9%43,026$970.24KQ2 2026Aug 07, 2026
Essex Investment Management Co LlcBuy+109,829+83.1%241,915$5.46MQ2 2026Aug 06, 2026
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Frequently asked questions about BDSX activity

  • Which institutional owners are buying BDSX?

    Institutional owners buying BDSX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in BDSX activity?

    "Buy" means an investor increased their reported position in BDSX compared to the prior reporting period. This reflects growing exposure to BIODESIX INC (BDSX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in BDSX increasing?

    Institutional interest in BDSX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.