Mark Christopher Bradley - 26 Jan 2026 Form 4 Insider Report for ALUMIS INC. (ALMS)

Signature
/s/ Sanam Pangali, Attorney-in-Fact
Issuer symbol
ALMS
Transactions as of
26 Jan 2026
Net transactions value
$0
Form type
4
Filing time
28 Jan 2026, 19:18:50 UTC
Previous filing
31 Jul 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bradley Mark Christopher Chief Development Officer C/O ALUMIS INC., 280 EAST GRAND AVENUE, SOUTH SAN FRANCISCO /s/ Sanam Pangali, Attorney-in-Fact 28 Jan 2026 0002023657

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALMS Stock Option (Right to Buy) Award $0 +190,225 $0.000000 190,225 26 Jan 2026 Common Stock 190,225 $26.31 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 25% of the shares underlying this option vest on January 26, 2027, and the remaining shares vest in equal monthly installments thereafter over the following 36 months, subject to acceleration and the Reporting Person's Continuous Service (as defined in the Issuer's 2024 Equity Incentive Plan) to the Issuer on each such vesting date.