JOINT FILING AGREEMENT
EXHIBIT 99.1
We, the undersigned, hereby express our agreement that the Schedule 13D (or any amendments thereto) relating to the common stock of Alumis Inc. is filed on behalf of each of us.
Dated: November 24, 2025
By:
Samsara BioCapital GP, LLC
its
General Partner
By:
/s/ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Name: ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Title: Managing Member
Samsara BioCapital GP, LLC
By:
/s/ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Name: ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Title: Managing Member
Samsara Opportunity Fund, L.P.
By:
Samsara Opportunity Fund GP, LLC
its
General Partner
By:
/s/ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Name: ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Title: Managing Member
Samsara Opportunity Fund GP, LLC
By:
/s/ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Name: ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Title: Managing Member
▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇
/s/ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇