Alumis Inc. (ALMS) ownership: Entities affiliated with Foresite Capital Management (1) 46% · institutions 95% · index and ETF funds 4% (13F 2026-06-30). Insider activity, 90 days: Insiders bought (9 sales, 3 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 15139707.00 | $426.03M | 11.9% | 2026-06-30 |
| BlackRock | 8218151.00 | $231.26M | 6.4% | 2026-06-30 |
| FMR (Fidelity) | 6769170.00 | $190.48M | 5.3% | 2026-06-30 |
| Deep Track Capital, LP | 6348558.00 | $178.65M | 5.0% | 2026-06-30 |
| Samsara Biocapital, LLC | 6345219.00 | $178.55M | 5.0% | 2026-06-30 |
| Foresite Capital Management V, LLC | 5896995.00 | $165.94M | 4.6% | 2026-06-30 |
| Vanguard | 5876234.00 | $165.36M | 4.6% | 2026-06-30 |
| Price T Rowe Associates Inc | 5199838.00 | $146.32M | 4.1% | 2026-06-30 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Buy | null | 2026-09-04 | |
| Sell | null | 2026-09-04 | |
| Sell | null | 2026-09-04 | |
| Buy | null | 2026-09-04 | |
| Buy | null | 2026-09-04 | |
| Sell | null | 2026-08-03 | |
| Sell | null | 2026-08-03 | |
| Sell | null | 2026-08-03 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.