As of November 7, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Biodesix Inc. The largest reported stake is Schuler Jack W's, at 24%. 10 filings are on record since September 3, 2025 (Schedule 13D/A, January 27, 2026).
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Key facts
- · Reporting person: Soleus Capital Master Fund, L.P. · Sole voting: 0 · Shared voting: 525,241 · Sole dispositive: 0 · Shared dispositive: 525,241 · SCHEDULE 13G, 2026-06-18
- · Reporting person: Perceptive Advisors LLC · Sole voting: 0 · Shared voting: 483,694 · Sole dispositive: 0 · Shared dispositive: 483,694 · SCHEDULE 13G/A, 2026-05-15
- · Holder: Soleus Capital Master Fund, L.P. · Percent: 4.1% · SCHEDULE 13G/A
- · Reporting person: Orin Hirschman · Sole voting: 758,328 · Shared voting: 0 · Sole dispositive: 758,328 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-28
- · Holder: Schuler Jack W · Percent: 24% · SCHEDULE 13D/A
Biodesix Inc has 10 Schedule 13D or 13G filings on record since 2025-09-03. 4 holders' latest filing reports 5% or more of common stock, par value $0.001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 24% | 2,333,945 | SCHEDULE 13D/A, 2026-01-27 | 2026-01-23 | |
| 7.7% | 758,328 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 | |
| Telemark Asset Management, LLC | 5.4% | 427,824 | SCHEDULE 13G, 2026-01-26 | 2026-01-22 |
| Soleus Capital Master Fund, L.P. | 5.1% | 525,241 | SCHEDULE 13G, 2026-06-18 | 2026-06-17 |
| Perceptive Advisors LLC | 4.6% | 483,694 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
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More on Biodesix Inc and the records around it.
Biodesix Inc elsewhere on the record
Companies that share a holder
- SCHULER JACK W also filed stake reports on 1 other company: Aspira Women's Health Inc. (Jun 2026)
- Telemark Asset Management, LLC also filed stake reports on 2 other companies: Andersen Group Inc. (Aug 2026), CODEXIS, INC. (Jul 2026)
- Soleus Capital Master Fund, L.P. also filed stake reports on 24 other companies: Beta Bionics, Inc. (Nov 2026), Evolus, Inc (Nov 2026), INSPIRE MEDICAL SYSTEMS, INC. (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Orin Hirschman | 758,328 | 0 | 758,328 | 0 | SCHEDULE 13G, 2026-04-28 |
| AIGH Capital Management LLC | 758,328 | 0 | 758,328 | 0 | SCHEDULE 13G, 2026-04-28 |
| Soleus Capital Master Fund, L.P. | 0 | 525,241 | 0 | 525,241 | SCHEDULE 13G, 2026-06-18 |
| Soleus Capital, LLC | 0 | 525,241 | 0 | 525,241 | SCHEDULE 13G, 2026-06-18 |
| Soleus Capital Group, LLC | 0 | 525,241 | 0 | 525,241 | SCHEDULE 13G, 2026-06-18 |
| Soleus Capital Management, L.P. | 0 | 525,241 | 0 | 525,241 | SCHEDULE 13G, 2026-06-18 |
| Soleus GP, LLC | 0 | 525,241 | 0 | 525,241 | SCHEDULE 13G, 2026-06-18 |
| Guy Levy | 0 | 525,241 | 0 | 525,241 | SCHEDULE 13G, 2026-06-18 |
| Perceptive Advisors LLC | 0 | 483,694 | 0 | 483,694 | SCHEDULE 13G/A, 2026-05-15 |
| Joseph Edelman | 0 | 483,694 | 0 | 483,694 | SCHEDULE 13G/A, 2026-05-15 |
| Perceptive Credit Advisors LLC | 0 | 483,694 | 0 | 483,694 | SCHEDULE 13G/A, 2026-05-15 |
| Pcof Eq Aiv Iv, LP | 0 | 51,828 | 0 | 51,828 | SCHEDULE 13G/A, 2026-05-15 |
| Perceptive Credit Holdings IV, LP | 0 | 431,866 | 0 | 431,866 | SCHEDULE 13G/A, 2026-05-15 |
The latest filing identifies Biodesix Inc by CUSIP 09075X207 and gives its principal executive office as 919 West Dillon Road, Louisville, CO 80027 (SCHEDULE 13G, 2026-06-18).
Purpose of Transaction (Item 4)
Schuler Jack W
Item 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.Item 4 of the SCHEDULE 13D/A filed 2026-01-27
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-09-03 | Schuler Jack W | 26% | SCHEDULE 13D/A |
| 2025-09-23 | Schuler Jack W | 27% | SCHEDULE 13D/A |
| 2026-01-13 | Soleus Capital Master Fund, L.P. | 6.3% | SCHEDULE 13G |
| 2026-01-23 | Telemark Asset Management, LLC | 4.1% | SCHEDULE 13G/A |
| 2026-01-26 | Telemark Asset Management, LLC | 5.4% | SCHEDULE 13G |
| 2026-01-27 | Schuler Jack W | 24% | SCHEDULE 13D/A |
| 2026-04-28 | Orin Hirschman | 7.7% | SCHEDULE 13G |
| 2026-05-08 | Soleus Capital Master Fund, L.P. | 4.1% | SCHEDULE 13G/A |
| 2026-05-15 | Perceptive Advisors LLC | 4.6% | SCHEDULE 13G/A |
| 2026-06-18 | Soleus Capital Master Fund, L.P. | 5.1% | SCHEDULE 13G |
Questions about who owns Biodesix Inc
Who owns Biodesix Inc?
On this page, 4 holders' latest ownership filings report 5% or more of Biodesix Inc: Schuler Jack W (24%, Schedule 13D/A, filed 2026-01-27), Orin Hirschman (7.7%, Schedule 13G, filed 2026-04-28), Telemark Asset Management, LLC (5.4%, Schedule 13G, filed 2026-01-26) and Soleus Capital Master Fund, L.P. (5.1%, Schedule 13G, filed 2026-06-18).
Who are the largest shareholders of Biodesix Inc?
By the share each holder's latest filing reports, the largest holders of Biodesix Inc on this page are Schuler Jack W (24%), Orin Hirschman (7.7%) and Telemark Asset Management, LLC (5.4%).
When did Schuler Jack W buy into Biodesix Inc?
The filings give report dates, not purchase dates. The earliest filing from Schuler Jack W on this page is the Schedule 13D/A, filed 2025-09-03, reporting 26%; its latest, Schedule 13D/A filed 2026-01-27, reports 24%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 10 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Biodesix Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 5, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.