SCHEDULE 13D/A

ADAPTHEALTH CORP COMMON STOCK

Common Stock, par value $0.0001 per share · CUSIP: 00653Q102

Event date: 2026-03-10

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

• OEP AHCO Investment Holdings, LLC

  Shares: 15,864,871 · Class: 11.7%

• One Equity Partners VII, L.P.

  Shares: 15,864,871 · Class: 11.7%

• One Equity Partners VII-A, L.P.

  Shares: 15,864,871 · Class: 11.7%

• One Equity Partners VII-B, L.P.

  Shares: 15,864,871 · Class: 11.7%

• OEP VII Project A Co-Investment Partners, L.P.

  Shares: 15,864,871 · Class: 11.7%

• OEP VII Project A-I Co-Investment Partners, L.P.

  Shares: 15,864,871 · Class: 11.7%

• OEP VII General Partner, L.P.

  Shares: 15,864,871 · Class: 11.7%

• OEP VII GP, L.L.C.Reported CIK 0001817118

  Shares: 15,864,871 · Class: 11.7%

• Richard CashinReported CIK 0001172898

  Shares: 15,864,871 · Class: 11.7%

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