Alumis Inc. (ALMS) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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