Biodesix Inc
BDSX- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001439725
In the last 90 days, Biodesix Inc insiders filed 2 open-market purchases and 0 sales; 45 institutions reported holding it in 13F filings for Q2 2026, worth $98.5M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Biodesix Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 40
- +15 vs. Q4 2025
- Shares held
- 3.90M
- +2.47M (+171.5%) vs. Q4 2025
- Total value
- $56.6M
- +$46.8M (+479.0%) vs. Q4 2025
- New holders
- 24
- 6 more added
- Sold out
- 9
- 2 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting BDSX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 45 | $98.5M |
| Q1 2026 | 40 | $56.6M |
| Q4 2025 | 26 | $11.1M |
| Q3 2025 | 26 | $10.8M |
| Q2 2025 | 41 | $10.0M |
| Q1 2025 | 60 | $33.4M |
| Q4 2024 | 59 | $89.9M |
| Q3 2024 | 52 | $111.2M |
| Q2 2024 | 46 | $82.0M |
| Q1 2024 | 42 | $23.1M |
| Q4 2023 | 38 | $30.4M |
| Q3 2023 | 37 | $27.7M |
| Q2 2023 | 29 | $20.7M |
| Q1 2023 | 30 | $31.0M |
| Q4 2022 | 33 | $36.9M |
| Q3 2022 | 28 | $6.04M |
| Q2 2022 | 37 | $5.99M |
| Q1 2022 | 46 | $7.06M |
| Q4 2021 | 41 | $21.4M |
| Q3 2021 | 42 | $34.9M |
| Q2 2021 | 47 | $67.6M |
| Q1 2021 | 46 | $85.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Biodesix Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AIGH Capital Management LLC | 758,328 | $11.0M | 2.25% | +758,328 | New |
| Telemark Asset Management, LLC | 489,824 | $7.10M | 0.66% | +162,000+49.4% | Added |
| Standard Life Aberdeen plc | 458,438 | $6.65M | 0.01% | +196,013+74.7% | Added |
| Soleus Capital Management, L.P. | 416,599 | $6.04M | 0.24% | +416,599 | New |
| Birchview Capital, LP | 286,804 | $4.16M | 2.37% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 255,161 | $3.70M | 0.00% | +255,161 | New |
| Opaleye Management Inc. | 238,047 | $3.45M | 0.45% | +238,047 | New |
| Marshall Wace, LLP | 141,636 | $2.05M | 0.00% | +141,636 | New |
| Essex Investment Management Co LLC | 132,086 | $1.92M | 0.30% | +132,086 | New |
| StemPoint Capital LP | 70,004 | $1.02M | 0.20% | +70,004 | New |
| Trexquant Investment LP | 69,601 | $1.01M | 0.01% | +42,059+152.7% | Added |
| Geode Capital Management, LLC | 49,998 | $725.6K | 0.00% | +7,545+17.8% | Added |
| Two Sigma Investments, LP | 45,231 | $655.9K | 0.00% | +45,231 | New |
| Perkins Capital Management Inc | 44,783 | $649.4K | 0.61% | 00.0% | Unchanged |
| SEI Investments Co | 43,024 | $623.8K | 0.00% | +43,024 | New |
| Legato Capital Management LLC | 41,174 | $597.0K | 0.05% | +41,174 | New |
| Gsa Capital Partners LLP | 39,406 | $571.0K | 0.04% | −25,077−38.9% | Reduced |
| UBS Group AG | 36,808 | $533.7K | 0.00% | +36,808 | New |
| Morgan Stanley | 32,392 | $469.7K | 0.00% | +32,331+53,001.6% | Added |
| Vanguard Fiduciary Trust Co | 28,660 | $415.6K | 0.00% | +28,660 | New |
| Blair William & Co | 27,583 | $400.0K | 0.00% | +27,583 | New |
| Jane Street Group, LLC | 27,031 | $391.9K | 0.00% | +27,031 | New |
| BlackRock, Inc. | 24,466 | $354.8K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 24,006 | $348.1K | 0.00% | +24,006 | New |
| Susquehanna International Group, LLP | 23,090 | $334.8K | 0.00% | +23,090 | New |
| State Street Corp | 17,802 | $258.1K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 15,388 | $223.0K | 0.00% | +15,388 | New |
| Cetera Investment Advisers | 12,000 | $174.0K | 0.00% | +2,000+20.0% | Added |
| Renaissance Technologies LLC | 11,948 | $173.2K | 0.00% | +11,948 | New |
| Thompson Davis & Co., Inc. | 11,750 | $170.4K | 0.11% | +11,750 | New |
| Bridgeway Capital Management, LLC | 11,035 | $160.0K | 0.00% | +11,035 | New |
| Walleye Capital LLC | 10,840 | $157.2K | 0.00% | +10,840 | New |
| Allworth Financial LP | 4,965 | $72.0K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 1,054 | $15.3K | 0.00% | +1,054 | New |
| BNP Paribas Arbitrage, SA | 924 | $13.4K | 0.00% | +924 | New |
| Fortitude Family Office, LLC | 171 | $2.48K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 100 | $1.45K | 0.00% | 00.0% | Unchanged |
| Gill Capital Partners, LLC | 13 | $189 | 0.00% | +13 | New |
| FMR LLC | 1 | $15 | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1 | $14 | 0.00% | −192−99.5% | Reduced |
| Monashee Investment Management LLC | 0 | $0 | 0.00% | −112,344−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −108,694−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −33,017−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −25,985−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −16,145−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −15,372−100.0% | Sold out |
| Northern Trust Corp | 0 | $0 | 0.00% | −11,134−100.0% | Sold out |
| Quattro Advisors LLC | 0 | $0 | 0.00% | −187−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −143−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |