ORTENZIO ROBERT A

Activist investor & 5%+ owner · SC 13D/13G filings

Total Filings

4

Stocks Covered

2

Latest Filing

Mar 4, 2026

Filings

SEM

SELECT MEDICAL HOLDINGS CORP

SC 13D/A · Mar 4, 2026

11.3%

14.0M shares

SEM

SELECT MEDICAL HOLDINGS CORP

SC 13D/A · Feb 23, 2026

11.3%

14.0M shares

CON

Concentra Group Holdings Parent, Inc.

SC 13D/A · Nov 26, 2025

6.4%

8.2M shares

SEM

SELECT MEDICAL HOLDINGS CORP

SC 13D · Nov 24, 2025

11.3%

14.0M shares