Foresite Capital Fund VI LP - 21 May 2025 SCHEDULE 13D/A Report for Alumis Inc. Common Stock (ALMS)

Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

16%

Beneficial ownership of this reported class.

Shares

15,197,954 shares

Shares beneficially owned as disclosed.

Event date

21 May 2025

Date tied to the ownership event or amendment.

Accepted by SEC

10 Jun 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
ALMS
Shares outstanding
95,584,616 shares
Source evidence Original filing metadata and source links for verification. 6 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
10 Jun 2025, 16:37:44 UTC
Event date
21 May 2025
Prior SEC filing
07 May 2025
Next SEC filing
12 Jan 2026
Source filing
View source filing

Key filing fact

Foresite Capital Fund VI LP disclosed 16% ownership in Alumis Inc. Common Stock (ALMS) on 21 May 2025.

Key facts

  • Foresite Capital Fund VI LP filed SCHEDULE 13D/A for Alumis Inc. Common Stock (ALMS).
  • Disclosed ownership: 16%.
  • Date of event: 21 May 2025.

Change

  • Previous schedule filing date: 07 May 2025.
  • Current filing was accepted on 10 Jun 2025, 16:37.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

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

View source filing

Reporting persons

Disclosed reporting parties (12)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Foresite Capital Fund VI, L.P. 4.4% 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 4.4% 4,247,670 4,247,670 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0002013341
Foresite Capital Fund V, L.P. 5.8% 5,584,889 5,584,889 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 6% 5,779,348 5,779,348 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0001792206
Foresite Capital Opportunity Fund V, L.P. 2.1% 2,034,129 2,034,129 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the General Partner 0001792205
Foresite Capital Opportunity Management V, LLC 2.1% 2,034,129 2,034,129 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0001792207
Foresite Labs Fund I, L.P. 2% 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 2% 1,960,337 1,960,337 0 /s/ James B. Tananbaum James Tananbaum, Managing Member 0001848577
Foresite Labs Affiliates 2021, LLC 1.2% 1,176,470 1,176,470 0 /s/ James B. Tananbaum James Tananbaum, Managing Member of the Manager 0002028005
Foresite Labs, LLC 1.2% 1,176,470 1,176,470 0 /s/ James B. Tananbaum James Tananbaum, Manager 0002027905
James B. Tananbaum 16% 15,197,954 14,021,484 1,176,470 /s/ James B. Tananbaum James B. Tananbaum 0001581754
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