SEC Form 4 · accession 0001231919-26-001158

ALUMIS INC. · ALMS

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Srinivas Akkaraju

Director

Period of report

Sep 4, 2026

Accepted (ET)

Sep 9, 2026 · 9:39 pm EDT

Rule 10b5-1 plan

box not checked

Issuer CIK

0001847367

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Sep 4, 2026	P	220,070	$11.173	A	4,711,801	I	By Samsara BioCapital, L.P.
Common Stock^F1,F3	Sep 4, 2026	P	220,070	$11.173	A	2,073,558	I	By Samsara Opportunity Fund, L.P.
Common Stock^F5,F2	Sep 8, 2026	S	48,066	$10.5484	D	4,663,735	I	By Samsara BioCapital, L.P.
Common Stock^F5,F3	Sep 8, 2026	S	48,065	$10.5484	D	2,025,493	I	By Samsara Opportunity Fund, L.P.
Common Stock^F6,F2	Sep 8, 2026	P	273,291	$10.6271	A	4,937,026	I	By Samsara BioCapital, L.P.
Common Stock^F6,F3	Sep 8, 2026	P	273,290	$10.6271	A	2,298,783	I	By Samsara Opportunity Fund, L.P.
Common Stock	holding	—	—		—	3,553	D

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $11.02 to $11.60, inclusive. The Reporting Person undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.
F2Shares are directly held by Samsara BioCapital LP. ("Samsara LP"). The Reporting Person is a managing member of Samsara BioCapital GP, LLC, the general partner of Samsara LP. The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.
F3Shares are directly held by Samsara Opportunity Fund, L.P. ("Samsara Opportunity Fund"). Samsara Opportunity Fund GP, LLC is the general partner of Samsara Opportunity Fund and may be deemed to beneficially own the securities held by Samsara Opportunity Fund. The Reporting Person has voting and investment power over the shares held by Samsara Opportunity Fund and, accordingly, may be deemed to beneficially own the shares held by Samsara Opportunity Fund. The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein.
F4The sales and purchases on September 8, 2026 were matchable under Section 16(b) of the Securities Exchange Act of 1934, to the extent of 48,066 shares in the case of Samsara LP and 48,065 shares in the case of Samsara Opportunity Fund, resulting in short-swing profit liability under Section 16(b). The Reporting Person has agreed to disgorge to the Issuer the short-swing profit realized in connection with these transactions, less transaction costs.
F5The price reported in Column 4 is a weighted average price. These securities were sold in multiple transactions at prices ranging from $10.38 to $10.91, inclusive. The Reporting Person undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
F6The price reported in Column 4 is a weighted average price. These securities were purchased in multiple transactions at prices ranging from $10.26 to $10.835, inclusive. The Reporting Person undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities purchased at each separate price within the range set forth in this footnote.