BiodesixBDSX
13F holders, Q1 2026 (March 31)At the end of Q1 2026, 39 institutions reported holding Biodesix Inc. (BDSX) in their 13F filings, up 14 from Q4 2025. 21 opened new positions and 9 sold out. The largest holders were AIGH Capital Management LLC ($11.0M), Telemark Asset Management, LLC ($7.1M) and Aberdeen Group plc ($6.6M). 2 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Biodesix Inc.
- CUSIP
- 09075X207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 21 | $30.3M |
| Exits | 9 | $2.2M |
All 13F filers, Q4 2025 → Q1 2026: 2,528,493 shares bought and 348,290 shares sold, net +2,180,203 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 39 holders
| AIGH Capital Management LLC | 2.25% | New | 758,328 | $11.0M |
| Telemark Asset Management, LLC | 0.66% | Add +49.4% | 489,824 | $7.1M |
| Aberdeen Group plc | 0.01% | Add +74.7% | 458,438 | $6.6M |
| Soleus Capital Management, L.P. | 0.24% | New | 416,599 | $6.0M |
| Vanguard Capital Management LLC | 0.00% | — | 255,161 | $3.7M |
| Opaleye Management Inc. | 0.45% | New | 238,047 | $3.5M |
| Marshall Wace, LLP | 0.00% | New | 141,636 | $2.1M |
| Essex Investment Management Co. LLC | 0.30% | New | 132,086 | $1.9M |
| Stempoint Capital LP | 0.20% | New | 70,004 | $1.0M |
| Trexquant Investment LP | 0.01% | Add +152.7% | 69,601 | $1.0M |
| Geode Capital Management, LLC | 0.00% | Add +17.8% | 49,998 | $726K |
| Two Sigma Investments, LP | 0.00% | New | 45,231 | $656K |
| Perkins Capital Management Inc. | 0.61% | No change | 44,783 | $649K |
| Sei Investments Co. | 0.00% | New | 43,024 | $624K |
| Legato Capital Management LLC | 0.05% | New | 41,174 | $597K |
| Gsa Capital Partners LLP | 0.04% | Reduce -38.9% | 39,406 | $571K |
| UBS Group AG | 0.00% | New | 36,808 | $534K |
| Morgan Stanley | 0.00% | Add +53001.6% | 32,392 | $470K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 28,660 | $416K |
| Blair William & Co. | 0.00% | New | 27,583 | $400K |
| Jane Street Group, LLC | 0.00% | New | 27,031 | $392K |
| BlackRock, Inc. | 0.00% | No change | 24,466 | $355K |
| Millennium Management | 0.00% | New | 24,006 | $348K |
| Susquehanna International Group, LLP | 0.00% | New | 23,090 | $335K |
| State Street Corp. | 0.00% | No change | 17,802 | $258K |
| HRT Financial LP | 0.00% | New | 15,388 | $223K |
| Cetera Investment Advisers | 0.00% | Add +20.0% | 12,000 | $174K |
| Renaissance Technologies | 0.00% | New | 11,948 | $173K |
| Thompson Davis & Co., Inc. | 0.11% | New | 11,750 | $170K |
| Bridgeway Capital Management, LLC | 0.00% | New | 11,035 | $160K |
| Walleye Capital LLC | 0.00% | New | 10,840 | $157K |
| Allworth Financial LP | 0.00% | No change | 4,965 | $72K |
| Vanguard Global Advisers, LLC | 0.00% | — | 1,054 | $15K |
| BNP Paribas Financial Markets | 0.00% | New | 924 | $13K |
| Fortitude Family Office, LLC | 0.00% | No change | 171 | $2K |
| Group One Trading LLC | 0.00% | No change | 100 | $1K |
| Gill Capital Partners, LLC | 0.00% | New | 13 | $189 |
| FMR LLC | 0.00% | No change | 1 | $15 |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -99.5% | 1 | $14 |
"% of holder's portfolio" is BDSX's weight in each manager's 13F, not the share of Biodesix Inc. the manager owns.