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.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Perceptive Advisors Llc | Buy | +108,694 | — | 108,694 | $2.45M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +64,475 | +238.5% | 91,506 | $2.06M | Q2 2026 | Aug 14, 2026 |
| Opaleye Management Inc. | Sell | -58,047 | -24.4% | 180,000 | $4.06M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +41,593 | +92.0% | 86,824 | $1.96M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +26,738 | — | 26,738 | $602.94K | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +15,709 | — | 15,709 | $354.24K | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Buy | +15,000 | +135.9% | 26,035 | $587.09K | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Sell | -11,629 | -16.7% | 57,972 | $1.31M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -9,602 | -40.0% | 14,404 | $324.81K | Q2 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -5,729 | -13.3% | 37,295 | $841.00K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +313 | — | 313 | $7.06K | Q2 2026 | Aug 14, 2026 |
| Stempoint Capital Lp | Sell | -4 | -0.0% | 70,000 | $1.58M | Q2 2026 | Aug 14, 2026 |
| Morgan Stanley | Sell | -32,331 | -99.8% | 61 | $1.38K | Q2 2026 | Aug 13, 2026 |
| Vanguard Capital Management Llc | Buy | +29,008 | +11.4% | 284,169 | $6.41M | Q2 2026 | Aug 13, 2026 |
| Marshall Wace, Llp | Sell | -25,437 | -18.0% | 116,199 | $2.62M | Q2 2026 | Aug 13, 2026 |
| Renaissance Technologies LLC | Buy | +16,700 | +139.8% | 28,648 | $646.01K | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Buy | +13,859 | — | 13,859 | $312.52K | Q2 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Buy | +11,299 | +39.4% | 39,959 | $901.08K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Sell | -6,900 | -18.7% | 29,908 | $674.43K | Q2 2026 | Aug 13, 2026 |
| Bnp Paribas Financial Markets | Sell | -806 | -87.2% | 118 | $2.66K | Q2 2026 | Aug 13, 2026 |
| Fmr Llc | Buy | +94 | +9400.0% | 95 | $2.15K | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Buy | +17,659 | +35.3% | 67,657 | $1.53M | Q2 2026 | Aug 12, 2026 |
| Jpmorgan Chase & Co | Buy | +43 | — | 43 | $1.02K | Q2 2026 | Aug 12, 2026 |
| Soleus Capital Management, L.P. | Buy | +169,359 | +40.7% | 585,958 | $13.21M | Q2 2026 | Aug 11, 2026 |
| Blair William & Co/Il | Buy | +13,965 | +50.6% | 41,548 | $936.91K | Q2 2026 | Aug 11, 2026 |
| Cannell & Spears Llc | Buy | +8,921 | — | 8,921 | $201.17K | Q2 2026 | Aug 11, 2026 |
| Aigh Capital Management Llc | Sell | -80,000 | -10.5% | 678,328 | $15.30M | Q2 2026 | Aug 07, 2026 |
| Quadrature Capital Ltd | Buy | +24,766 | — | 24,766 | $558.47K | Q2 2026 | Aug 07, 2026 |
| Blackrock, Inc. | Buy | +18,560 | +75.9% | 43,026 | $970.24K | Q2 2026 | Aug 07, 2026 |
| Essex Investment Management Co Llc | Buy | +109,829 | +83.1% | 241,915 | $5.46M | Q2 2026 | Aug 06, 2026 |
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.
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