Foresite Capital Fund VI LP - 01 Apr 2026 SCHEDULE 13D/A Report for Alumis Inc. Common Stock (ALMS)

Reporting Manager
James B. Tananbaum
Symbol
ALMS
Shares outstanding
123,573,386 shares
Disclosed Ownership
15,693,820 shares
Ownership
13%
Form type
SCHEDULE 13D/A
Filing time
03 Apr 2026, 15:51:07 UTC
Date of event
01 Apr 2026
Previous filing
12 Jan 2026

Quoteable Key Fact

"Foresite Capital Fund VI LP disclosed 13% ownership in Alumis Inc. Common Stock (ALMS) on 01 Apr 2026."

Quick Takeaways

  • Foresite Capital Fund VI LP filed SCHEDULE 13D/A for Alumis Inc. Common Stock (ALMS).
  • Disclosed ownership: 13%.
  • Date of event: 01 Apr 2026.

What Changed

  • Previous schedule filing date: 12 Jan 2026.
  • Current filing was accepted on 03 Apr 2026, 15:51.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (12)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Foresite Capital Fund VI LP 3.4% 4,247,670 4,247,670 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the General Partner 0001932516
Foresite Capital Management VI, LLC 3.4% 4,247,670 4,247,670 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0002013341
Foresite Capital Fund V, L.P. 4.6% 5,702,536 5,702,536 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the General Partner 0001792204
Labs Co-Invest V, LLC 0.2% 194,459 194,459 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the General Partner 0001810063
Foresite Capital Management V, LLC 4.8% 5,896,995 5,896,995 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0001792206
Foresite Capital Opportunity Fund V, L.P. 2.4% 2,908,332 2,908,332 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the General Partner 0001792205
Foresite Capital Opportunity Management V, LLC 2.4% 2,908,332 2,908,332 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0001792207
Foresite Labs Fund I, L.P. 1.6% 1,960,337 1,960,337 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the General Partner 0001848472
Foresite Labs Management I, LLC 1.6% 1,960,337 1,960,337 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0001848577
Foresite Labs Affiliates 2021, LLC 0% 0 0 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the Manager 0002028005
Foresite Labs, LLC 0% 0 0 0 /s/ James B. Tananbaum James Tananbaum, Manager 0002027905
James B. Tananbaum 13% 15,693,820 15,693,820 0 /s/ James B. Tananbaum James B. Tananbaum 0001581754
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