Alumis's three largest insider shareholders as of March 23, 2026 are Capital Management Company, Lp Ayurmaya (Director, 15.14Mn shares), Capital Management V, Llc Foresite (TenPercentOwner, 4.20Mn shares), James B. Tananbaum (Director, 2.91Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Capital Management Company, Lp Ayurmaya | 0 | 15,139,707 | 23 May, 2025 | |
| Capital Management V, Llc Foresite | 0 | 4,202,670 | 03 Jul, 2024 | |
| Capital Management Vi Llc Foresite | 0 | 2,908,332 | 12 Jan, 2026 | |
| James B. Tananbaum | 0 | 2,908,332 | 12 Jan, 2026 | |
| Labs, Llc Foresite | 0 | 2,908,332 | 12 Jan, 2026 | |
| Roy C. Hardiman | Chief Business Strategy Ofcr | 206,401 | 0 | 31 Jul, 2025 |
| Martin Babler | President, Ceo And Chairman | 0 | 106,454 | 03 Apr, 2025 |
| Mark Christopher Bradley | Chief Development Officer | 48,728 | 0 | 31 Jul, 2025 |
| Derrick Richardson | Svp, People And Culture | 42,800 | 0 | 31 Jul, 2025 |
| Sara Klein | General Counsel Corp Secy | 33,796 | 0 | 01 Jul, 2024 |
| David M Goldstein | Chief Scientific Officer | 29,115 | 0 | 31 Jul, 2025 |
| Jorn Drappa | Chief Medical Officer | 28,450 | 0 | 31 Jul, 2025 |
| John R. Schroer | Chief Financial Officer | 28,000 | 0 | 31 Jul, 2025 |
| Zhengbin Yao | 23,529 | 0 | 01 Jul, 2024 | |
| Mark Christopher Bradley | Chief Development Officer | 0 | 20,026 | 01 Jul, 2024 |
| Alan Colowick | 0 | 18,404 | 03 Apr, 2025 | |
| Sanam Pangali | Chief Legal Officer | 11,111 | 0 | 31 Jul, 2025 |
| Patrick Machado | 0 | 7,064 | 23 May, 2025 | |
| Roy C. Hardiman | Chief Business Legal Officer | 0 | 6,417 | 03 Jul, 2024 |
| David M Goldstein | Chief Scientific Officer | 0 | 2,994 | 03 Jul, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 26 Jan, 2026 | John R. Schroer | Stock Option (Right to Buy) | A | 202,225 | $0.00 | 202,225 | D | A |
| 26 Jan, 2026 | Martin Babler | Stock Option (Right to Buy) | A | 745,875 | $0.00 | 745,875 | D | A |
| 26 Jan, 2026 | Sanam Pangali | Stock Option (Right to Buy) | A | 186,200 | $0.00 | 186,200 | D | A |
| 26 Jan, 2026 | Mark Christopher Bradley | Stock Option (Right to Buy) | A | 190,225 | $0.00 | 190,225 | D | A |
| 26 Jan, 2026 | Roy C. Hardiman | Stock Option (Right to Buy) | A | 190,875 | $0.00 | 190,875 | D | A |
| 26 Jan, 2026 | David M Goldstein | Stock Option (Right to Buy) | A | 216,675 | $0.00 | 216,675 | D | A |
| 26 Jan, 2026 | Jorn Drappa | Stock Option (Right to Buy) | A | 221,450 | $0.00 | 221,450 | D | A |
| 08 Jan, 2026 | Capital Management Vi Llc Foresite | Common Stock | A | 117,647 | $17.00 | 5,702,536 | I | P |
| 08 Jan, 2026 | Labs, Llc Foresite | Common Stock | A | 117,647 | $17.00 | 5,702,536 | I | P |
| 08 Jan, 2026 | James B. Tananbaum | Common Stock | A | 117,647 | $17.00 | 5,702,536 | I | P |
| 08 Jan, 2026 | Labs, Llc Foresite | Common Stock | A | 294,117 | $17.00 | 2,908,332 | I | P |
| 08 Jan, 2026 | Capital Management Vi Llc Foresite | Common Stock | A | 294,117 | $17.00 | 2,908,332 | I | P |
| 08 Jan, 2026 | James B. Tananbaum | Common Stock | A | 294,117 | $17.00 | 2,908,332 | I | P |
| 21 Nov, 2025 | Labs, Llc Foresite | Common Stock | A | 72,212 | $7.38 | 2,614,215 | I | P |
| 21 Nov, 2025 | James B. Tananbaum | Common Stock | A | 72,212 | $7.38 | 2,614,215 | I | P |
| 21 Nov, 2025 | Capital Management Vi Llc Foresite | Common Stock | A | 72,212 | $7.38 | 2,614,215 | I | P |
| 17 Nov, 2025 | Labs, Llc Foresite | Common Stock | A | 50,000 | $5.60 | 2,084,129 | I | P |
| 17 Nov, 2025 | Capital Management Vi Llc Foresite | Common Stock | A | 50,000 | $5.60 | 2,084,129 | I | P |
| 17 Nov, 2025 | James B. Tananbaum | Common Stock | A | 50,000 | $5.60 | 2,084,129 | I | P |
| 17 Nov, 2025 | James B. Tananbaum | Common Stock | A | 150,000 | $5.59 | 2,234,129 | I | P |