SCHEDULE 13G/A

ADAGIO MED HLDGS INC

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

Event date: 2025-03-31

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

• RA Capital Management, L.P.

  Shares: 1,200,000.00 · Class: 7.2%

• Peter Kolchinsky

  Shares: 1,200,000.00 · Class: 7.2%

• Rajeev Shah

  Shares: 1,200,000.00 · Class: 7.2%

• RA Capital Healthcare Fund, L.P.

  Shares: 1,140,000.00 · Class: 6.9%

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