Alumis Inc. Common Stock (ALMS) ownership: Top institutional holder: BlackRock, Inc. ($157.97M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 7170868.00 | $157.97M | 2026-03-31 |
| Deep Track Capital, LP | 6772595.00 | $149.20M | 2026-03-31 |
| AyurMaya Capital Management Company, LP | 15139706.00 | $147.76M | 2025-12-31 |
| SAMSARA BIOCAPITAL, LLC | 6345219.00 | $139.79M | 2026-03-31 |
| Foresite Capital Management V, LLC | 5896995.00 | $129.91M | 2026-03-31 |
| venBio Partners LLC | 4528408.00 | $99.76M | 2026-03-31 |
| Foresite Capital Management VI LLC | 4247670.00 | $93.58M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4032266.00 | $88.83M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 | |
| Sell | null | 2026-05-22 |
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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.