Tananbaum James B. - Insider Non-Derivative Transactions at ALUMIS INC. (ALMS) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Nov 21, 2025, Tananbaum James B.'s relationship to ALUMIS INC. (ALMS) is Director,TenPercentOwner, and currently has 2,614,215 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other ALMS insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Tananbaum James B. - Insider Non-Derivative Transactions of ALMS Common Stock

Tananbaum James B. - Insider Non-Derivative Transactions at ALMS

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Nov 22, 2025	P -- (Common Stock)	72212	7.38	2614215
Nov 20, 2025	P -- (Common Stock)	190500	6.56	2542003
Nov 19, 2025	P -- (Common Stock)	117374	6.19	2351503
Nov 18, 2025	P -- (Common Stock)	50000	5.6	2084129
Nov 18, 2025	P -- (Common Stock)	150000	5.59	2234129
May 7, 2025	P -- (Common Stock)	20000	4.34	4247670
May 3, 2025	P -- (Common Stock)	25000	4.62	4227670
Jul 2, 2024	C -- (Common Stock)	194459	0	194459
Jul 2, 2024	C -- (Common Stock)	311172	0	311172
Jul 2, 2024	C -- (Common Stock)	481283	0	481283
Jul 2, 2024	C -- (Common Stock)	967567	0	967567
Jul 2, 2024	C -- (Common Stock)	560076	0	1041359
Jul 2, 2024	C -- (Common Stock)	311172	0	1278739
Jul 2, 2024	C -- (Common Stock)	311172	0	1352531
Jul 2, 2024	C -- (Common Stock)	1944577	0	1944577
Jul 2, 2024	C -- (Common Stock)	681598	0	1960337
Jul 2, 2024	C -- (Common Stock)	1703998	0	2015170
Jul 2, 2024	C -- (Common Stock)	681598	0	2034129
Jul 2, 2024	C -- (Common Stock)	1122994	0	3067571
Jul 2, 2024	C -- (Common Stock)	560076	0	3627647
Jul 2, 2024	P -- (Common Stock)	2187500	16	4202670
Jul 2, 2024	C -- (Common Stock)	622344	0	4249991
Jul 2, 2024	C -- (Common Stock)	1022398	0	5272389
Jul 2, 2024	P -- (Common Stock)	312500	16	5584889