SEC Form 4 · accession 0002023657-26-000005
ALUMIS INC. · ALMS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Mark Christopher Bradley
Officer — Chief Development Officer
Period of report
Aug 3, 2026
Accepted (ET)
Aug 5, 2026 · 6:21 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 StockF1,F2,F3 | Aug 3, 2026 | S | 2,572 | $26.37 | D | 48,533 | D | |
| Common StockF4 | holding | — | — | — | 20,026 | I | By GRAT | |
| Common StockF5 | holding | — | — | — | 20,026 | I | By GRAT |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The sale reported on this Form 4 was effected pursuant to the Issuer's policy requiring sell-to-cover to satisfy tax obligations of the Reporting Person incurred with the vesting and settlement of restricted stock units granted on July 29, 2025, and does not represent a discretionary sale by the Reporting Person.
- F2The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $25.60 to $26.42 per share. The Reporting Person undertakes 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 shares sold at each separate price within the range set forth in this footnote.
- F3Includes 2,377 shares acquired on May 20, 2026 under the Issuer's 2024 Employee Stock Purchase Plan.
- F4Shares are owned directly by JB 2025 GRAT, for which Reporting Person serves as a trustee. 20,026 shares were transferred from the JB 2023 GRAT on October 30, 2025.
- F5Shares are owned directly by MB 2025 GRAT, for which Reporting Person serves as a trustee. 20,026 shares were transferred from the MB 2023 GRAT on October 30, 2025.