SCHEDULE 13D/A

Alumis Inc

Common Stock · CUSIP: 022307102

Event date: 2025-05-21

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Foresite Capital Fund VI, L.P.Reported CIK 0001932516

  Shares: 4,247,670.00 · Class: 4.4%

• Foresite Capital Management VI, LLCReported CIK 0002013341

  Shares: 4,247,670.00 · Class: 4.4%

• Foresite Capital Fund V, L.P.Reported CIK 0001792204

  Shares: 5,584,889.00 · Class: 5.8%

• Labs Co-Invest V, LLCReported CIK 0001810063

  Shares: 194,459.00 · Class: 0.2%

• Foresite Capital Management V, LLCReported CIK 0001792206

  Shares: 5,779,348.00 · Class: 6.0%

• Foresite Capital Opportunity Fund V, L.P.Reported CIK 0001792205

  Shares: 2,034,129.00 · Class: 2.1%

• Foresite Capital Opportunity Management V, LLCReported CIK 0001792207

  Shares: 2,034,129.00 · Class: 2.1%

• Foresite Labs Fund I, L.P.Reported CIK 0001848472

  Shares: 1,960,337.00 · Class: 2.0%

• Foresite Labs Management I, LLCReported CIK 0001848577

  Shares: 1,960,337.00 · Class: 2.0%

• Foresite Labs Affiliates 2021, LLCReported CIK 0002028005

  Shares: 1,176,470.00 · Class: 1.2%

• Foresite Labs, LLCReported CIK 0002027905

  Shares: 1,176,470.00 · Class: 1.2%

• James B. TananbaumReported CIK 0001581754

  Shares: 15,197,954.00 · Class: 15.9%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.