As of November 9, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Alumis Inc. The largest reported stake is Foresite Capital Fund VI LP's, at 14.5%. 12 filings are on record since November 17, 2025 (Schedule 13D, August 17, 2026).
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Key facts
- · Reporting person: Fmr LLC · Sole voting: 15,380 · Shared voting: 0 · Sole dispositive: 17,401 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-11-05
- · Holder: Foresite Capital Fund VI LP · Percent: 14.5% · SCHEDULE 13D
- · Holder: Fmr LLC · Percent: 5.5% · SCHEDULE 13G
- · Reporting person: BlackRock, Inc. · Sole voting: 6,948,664 · Shared voting: 0 · Sole dispositive: 7,069,502 · Shared dispositive: 0 · SCHEDULE 13G, 2026-07-27
- · Reporting person: AyurMaya Capital Management Company, LP · Sole voting: 0 · Shared voting: 15,139,707 · Sole dispositive: 0 · Shared dispositive: 15,139,707 · SCHEDULE 13D/A, 2026-07-02
Alumis Inc has 12 Schedule 13D or 13G filings on record since 2025-11-17. 5 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Foresite Capital Fund VI LP | 14.5% | 2,203,800 | SCHEDULE 13D, 2026-08-17 | 2026-08-10 |
| AyurMaya Capital Management Company, LP | 12.3% | 15,139,707 | SCHEDULE 13D/A, 2026-07-02 | 2026-05-14 |
| Deep Track Capital, LP | 5.98% | 7,362,035 | SCHEDULE 13G, 2026-04-07 | 2026-03-30 |
| BlackRock, Inc. | 5.7% | 7,069,502 | SCHEDULE 13G, 2026-07-27 | 2026-06-30 |
| Samsara BioCapital, L.P. | 5.4% | 4,491,731 | SCHEDULE 13D/A, 2026-01-13 | 2026-01-09 |
| venBio Global Strategic Fund IV, L.P. | 4.8% | 4,619,803 | SCHEDULE 13G/A, 2025-11-17 | 2025-06-30 |
| Fmr LLC | 0% | 17,401 | SCHEDULE 13G/A, 2026-11-05 | 2026-09-30 |
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More on Alumis Inc and the records around it.
Alumis Inc elsewhere on the record
Companies that share a holder
- Foresite Capital Fund VI LP also filed stake reports on 4 other companies: IRulya Therapeutics Inc. (Oct 2026), Latigo Biotherapeutics, Inc. (Aug 2026), Verastem, Inc. (May 2026)
- Samsara BioCapital, L.P. also filed stake reports on 14 other companies: PMV Pharmaceuticals, Inc. (Sep 2026), Eloxx Pharmaceuticals, Inc. (Aug 2026), RANI THERAPEUTICS HOLDINGS, INC. (May 2026)
- Deep Track Capital, LP also filed stake reports on 59 other companies: Alector, Inc. (Oct 2026), TCGX Acquisition Corp. II (Oct 2026), Frazier Life Sciences Acquisition Corp. II (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 0 | 15,139,707 | 0 | 15,139,707 | SCHEDULE 13D/A, 2026-07-02 |
| David E. Goel | 0 | 15,139,707 | 0 | 15,139,707 | SCHEDULE 13D/A, 2026-07-02 |
| BlackRock, Inc. | 6,948,664 | 0 | 7,069,502 | 0 | SCHEDULE 13G, 2026-07-27 |
| Fmr LLC | 15,380 | 0 | 17,401 | 0 | SCHEDULE 13G/A, 2026-11-05 |
| Abigail P. Johnson | 0 | 0 | 17,401 | 0 | SCHEDULE 13G/A, 2026-11-05 |
The latest filing identifies Alumis Inc by CUSIP 022307102 and gives its principal executive office as 280 EAST GRAND AVENUE, SOUTH SAN FRANCISCO, CA 94080 (SCHEDULE 13G/A, 2026-11-05).
Purpose of Transaction (Item 4)
Foresite Capital Fund VI LP
The Reporting Persons hold their securities of the Issuer for investment purposes. Depending on the factors discussed herein, the Reporting Persons may, from time to time, acquire additional shares of Common Stock and/or retain and/or sell all or a portion of the Common Stock held by the Reporting Persons in the open market or in privately negotiated transactions, and/or may distribute the Common Stock held by the Reporting Persons to their respective members or limited partners. Any actions the Reporting Persons might undertake will be dependent upon the Reporting Persons' review of numerous factors, including, among other things, the price levels of the Common Stock; general market and economic conditions; ongoing evaluation of the Issuer's business, financial condition, operations and prospects; the relative attractiveness of alternative business and investment opportunities; and other future developments. Except as set forth above, the Reporting Persons have no present plans or intentions which would result in or relate to any of the transactions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.Item 4 of the SCHEDULE 13D filed 2026-08-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-17 | venBio Global Strategic Fund IV, L.P. | 4.8% | SCHEDULE 13G/A |
| 2025-11-17 | Samsara BioCapital, L.P. | 4.9% | SCHEDULE 13D/A |
| 2025-11-24 | Samsara BioCapital, L.P. | 5.3% | SCHEDULE 13D |
| 2026-01-12 | Foresite Capital Fund VI LP | 14.1% | SCHEDULE 13D/A |
| 2026-01-13 | Samsara BioCapital, L.P. | 5.4% | SCHEDULE 13D/A |
| 2026-04-03 | Foresite Capital Fund VI LP | 12.7% | SCHEDULE 13D/A |
| 2026-04-07 | Deep Track Capital, LP | 5.98% | SCHEDULE 13G |
| 2026-07-02 | AyurMaya Capital Management Company, LP | 12.3% | SCHEDULE 13D/A |
| 2026-07-27 | BlackRock, Inc. | 5.7% | SCHEDULE 13G |
| 2026-08-06 | Fmr LLC | 5.5% | SCHEDULE 13G |
| 2026-08-17 | Foresite Capital Fund VI LP | 14.5% | SCHEDULE 13D |
| 2026-11-05 | Fmr LLC | 0% | SCHEDULE 13G/A |
Questions about who owns Alumis Inc
Who owns Alumis Inc?
On this page, 5 holders' latest ownership filings report 5% or more of Alumis Inc: Foresite Capital Fund VI LP (14.5%, Schedule 13D, filed 2026-08-17), AyurMaya Capital Management Company, LP (12.3%, Schedule 13D/A, filed 2026-07-02), Deep Track Capital, LP (5.98%, Schedule 13G, filed 2026-04-07), BlackRock, Inc. (5.7%, Schedule 13G, filed 2026-07-27) and Samsara BioCapital, L.P. (5.4%, Schedule 13D/A, filed 2026-01-13).
Who are the largest shareholders of Alumis Inc?
By the share each holder's latest filing reports, the largest holders of Alumis Inc on this page are Foresite Capital Fund VI LP (14.5%), AyurMaya Capital Management Company, LP (12.3%) and Deep Track Capital, LP (5.98%).
When did Foresite Capital Fund VI LP buy into Alumis Inc?
The filings give report dates, not purchase dates. The earliest filing from Foresite Capital Fund VI LP on this page is the Schedule 13D/A, filed 2026-01-12, reporting 14.1%; its latest, Schedule 13D filed 2026-08-17, reports 14.5%. 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%); 12 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.
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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.