SCHEDULE 13D/A

SELECT MEDICAL HOLDINGS CORP

Common Stock, par value $0.001 · CUSIP: 81619Q105

Event date: 2026-02-23

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

• ORTENZIO ROBERT AReported CIK 0000918697

  Shares: 14,019,735 · Class: 11.3%

• JACKSON MARTIN F

  Shares: 1,383,421 · Class: 1.1%

• ESTATE OF ROCCO A. ORTENZIO

  Shares: 4,085,550 · Class: 3.3%

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