SCHEDULE 13D/A

ARVINAS INC

Common Stock ("Stock") · CUSIP: 04335A105

Event date: 2025-10-13

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

• Logos Global Management LPReported CIK 0001792126

  Shares: 2,500,000.00 · Class: 3.4%

• Logos Global Management GP LLC

  Shares: 2,500,000.00 · Class: 3.4%

• Logos Global Master Fund LPReported CIK 0001831371

  Shares: 2,000,000.00 · Class: 2.7%

• Logos GP LLC

  Shares: 2,000,000.00 · Class: 2.7%

• Logos Opportunities Fund IV GP LLC

  Shares: 500,000.00 · Class: 0.7%

• Logos Opportunities Fund IV LPReported CIK 0001981151

  Shares: 500,000.00 · Class: 0.7%

• Arsani WilliamReported CIK 0001848372

  Shares: 2,500,000.00 · Class: 3.4%

• Graham WalmsleyReported CIK 0001777517

  Shares: 500,000.00 · Class: 0.7%

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