January 8, 2026 · Form 4 insider transaction
Tananbaum James B. bought 117,647 shares of ALUMIS INC at $17.00 per share, a transaction worth $2.00M. The trade was recorded as open-market purchase and disclosed on an SEC Form 4, filed 4 days after the transaction.
The shares are held of record by Foresite Capital Fund V, L.P. ("Fund V"). Foresite Capital Management V, LLC ("FCM V") is the general partner of Fund V and may be deemed to have sole voting and dispositive power over such shares. James B. Tananbaum ("Tananbaum"), the managing member of FCM V, may be deemed to have sole voting and dispositive power over such shares. Tananbaum disclaims the existence of a "group", as defined in Rule 13d-5 of the Exchange Act, and disclaims beneficial ownership of the shares held by Fund V, except to the extent of such person's pecuniary interest in such securities.