Select Medical Holdings Corporation (SEM) Institutional Ownership

Based on Q1 2026 13F filings, institutional ownership of Select Medical Holdings Corporation stands at 70.9%, held across 269 reporting institutions.

BlackRock, Inc. is the largest reported institutional holder of SEM, with approximately 17,263,327 shares worth $0.28B as of Q1 2026.

Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of SEM, including SOROS FUND MANAGEMENT LLC, MILLENNIUM MANAGEMENT LLC.

Our composite Smart Money Score for SEM is 65 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.

55 institutions opened new positions in SEM during Q1 2026, while 53 fully exited. 157 added to existing positions and 54 trimmed.

SEM institutional ownership rose by 14.22 percentage points quarter-over-quarter, with a net change of +2 holders.

The top 10 institutions account for 58.4% of all reported 13F value in SEM, and the top 25 account for 79.3%.

All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.