SCHEDULE 13G

ADAGIO MED HLDGS INC

Common Stock, par value $0.0001per share · CUSIP: 00534B100

Event date: 2025-12-31

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

• Alyeska Investment Group, L.P.

  Shares: 2,096,784.00 · Class: 9.9%

• Alyeska Fund GP, LLC

  Shares: 2,096,784.00 · Class: 9.9%

• Anand Parekh

  Shares: 2,096,784.00 · Class: 9.9%

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