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

Filing Manager
Foresite Capital Fund VI LP
Reporting Manager
James B. Tananbaum
Security
Alumis Inc. Common Stock
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
SEC
View on sec.gov

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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.

Official SEC Source

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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