BIODESIX INC BDSX
COM · Common Stock · CUSIP 09075X207
- SectorHealth care
- IndustryServices-Medical Laboratories
- HeadquartersLouisville, CO
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 10.6m as of 2026-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $22.55.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2025 | 25 |
| Q4 2025 | 25 |
| Q1 2026 | 39 |
| Q2 2026 | 44 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2025 | 13 | 12 |
| Q1 2026 | 27 | 11 |
| Q2 2026 | 25 | 18 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $120.8k | $0 | 0.00 |
| Q4 2025 | $85.0k | $0 | 0.00 |
| Q1 2026 | $214.6k | $0 | 0.00 |
| Q2 2026 | $0 | $0 | — |
Biggest buyers
| Soleus Capital Management, L.P. | Added | +169.4k |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Added | +109.8k |
| PERCEPTIVE ADVISORS LLC | New | +108.7k |
| JANE STREET GROUP, LLC | Added | +64.5k |
| Walleye Capital LLC | Added | +63.6k |
| TWO SIGMA INVESTMENTS, LP | Added | +41.6k |
| Legato Capital Management LLC | Added | +40.2k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +29.0k |
| BANK OF AMERICA CORP /DE/ | New | +26.7k |
| Quadrature Capital Ltd | New | +24.8k |
Biggest sellers
| AIGH Capital Management LLC | Reduced | -80.0k |
| STEMPOINT CAPITAL LP | Reduced | -70.0k |
| Aberdeen Group plc | Reduced | -69.8k |
| Opaleye Management Inc. | Reduced | -58.0k |
| MORGAN STANLEY | Reduced | -32.3k |
| MARSHALL WACE, LLP | Reduced | -25.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold out | -23.1k |
| HRT FINANCIAL LP | Sold out | -15.4k |
| Cetera Investment Advisers | Sold out | -12.0k |
| Trexquant Investment LP | Reduced | -11.6k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
SCHULER JACK W
13D · may seek influence
-3.0 pts · filed 2026-01-27
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: Mr. Schuler transitioned to the role of emeritus director of the Issuer at the Issuer's 2025 Annual Meeting of Stockholders held on May 20, 2025. Full filing |
24.0% |
| HIRSCHMAN ORIN 13G · institution new · filed 2026-04-28 | 7.7% |
| Telemark Asset Management, LLC 13G · passive investor +1.3 pts · filed 2026-01-26 | 5.4% |
| Soleus Capital Master Fund, L.P. 13G · passive investor +1.0 pts · filed 2026-06-18 | 5.1% |
Fell to 5% or below in the last year: PERCEPTIVE ADVISORS LLC (4.6%, 2026-05-15)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 5 | $821.6k | 5 | $8.1k | — |
| Q1 2025 | 0 | — | 5 | — | — |
| Q2 2025 | 1 | — | 5 | — | — |
| Q3 2025 | 1 | $1.1m | 5 | — | — |
| Q4 2025 | 0 | — | 5 | $2.3k | — |
| Q1 2026 | 0 | — | 5 | $104.4k | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-12 | SCHULER JACK W 10% owner · By Jack W. Schuler Living Trust | Bought | $367.1k15.0k shares |
| 2026-08-11 | SCHULER JACK W 10% owner · By Jack W. Schuler Living Trust | Bought | $328.9k13.7k shares |
| 2026-08-10 | SCHULER JACK W 10% owner · By Jack W. Schuler Living Trust | Bought | $337.1k13.9k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| AIGH Capital Management LLC 1.38% of their portfolio | 678.3k $15.3m | Reduced -80.0k |
| Soleus Capital Management, L.P. 0.46% of their portfolio | 586.0k $13.2m | Added +169.4k |
| Telemark Asset Management, LLC 0.80% of their portfolio | 489.8k $11.0m | Unchanged |
| Aberdeen Group plc 0.01% of their portfolio | 388.6k $8.8m | Reduced -69.8k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 284.2k $6.4m | Added +29.0k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.71% of their portfolio | 241.9k $5.5m | Added +109.8k |
| Opaleye Management Inc. 0.37% of their portfolio | 180.0k $4.1m | Reduced -58.0k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 116.2k $2.6m | Reduced -25.4k |
| PERCEPTIVE ADVISORS LLC 0.04% of their portfolio | 108.7k $2.5m | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 91.5k $2.1m | Added +64.5k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 86.8k $2.0m | Added +41.6k |
| Legato Capital Management LLC 0.15% of their portfolio | 81.4k $1.8m | Added +40.2k |
| Walleye Capital LLC 0.01% of their portfolio | 74.4k $1.7m | Added +63.6k |
| STEMPOINT CAPITAL LP 0.27% of their portfolio | 70.0k $1.6m | Reduced -70.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 67.7k $1.5m | Added +17.7k |
| Trexquant Investment LP 0.01% of their portfolio | 58.0k $1.3m | Reduced -11.6k |
| GSA CAPITAL PARTNERS LLP 0.07% of their portfolio | 47.0k $1.1m | Added +7.6k |
| PERKINS CAPITAL MANAGEMENT INC 0.76% of their portfolio | 44.6k $1.0m | Reduced -165 |
| BlackRock, Inc. 0.00% of their portfolio | 43.0k $970.2k | Added +18.6k |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 41.5k $936.9k | Added +14.0k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 40.0k $901.1k | Added +11.3k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 37.3k $841.0k | Reduced -5.7k |
| UBS Group AG 0.00% of their portfolio | 29.9k $674.4k | Reduced -6.9k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 28.6k $646.0k | Added +16.7k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 26.7k $602.9k | New |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 26.0k $587.1k | Added +15.0k |
| Quadrature Capital Ltd 0.00% of their portfolio | 24.8k $558.5k | New |
| STATE STREET CORP 0.00% of their portfolio | 17.8k $401.4k | Unchanged |
| Squarepoint Ops LLC 0.00% of their portfolio | 15.7k $354.2k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 14.4k $324.8k | Reduced -9.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 13.9k $312.5k | New |
| THOMPSON DAVIS & CO., INC. 0.15% of their portfolio | 11.3k $255.9k | Reduced -400 |
| Cannell & Spears LLC 0.00% of their portfolio | 8.9k $201.2k | New |
| Allworth Financial LP 0.00% of their portfolio | 5.0k $112.0k | Unchanged |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 1.1k $23.8k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 313 $7.1k | New |
| Pflug Koory, LLC 0.00% of their portfolio | 250 $5.6k | New |
| Fortitude Family Office, LLC 0.00% of their portfolio | 171 $3.9k | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 118 $2.7k | Reduced -806 |
| FMR LLC 0.00% of their portfolio | 95 $2.1k | Added +94 |
| MORGAN STANLEY 0.00% of their portfolio | 61 $1.4k | Reduced -32.3k |
| CITIGROUP INC 0.00% of their portfolio | 58 $1.3k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 43 $1.0k | New |
| GILL CAPITAL PARTNERS, LLC 0.00% of their portfolio | 13 $293 | Unchanged |