SEM is no longer listed. Its last trade on record was Jun 30, 2026. The price and figures on this page are from its last trading day and final filings, and are no longer updated.
Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in SEM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 13.1M | $215.8M | -24.3% | 10.548% | 0.00% |
| 2 | Verition Fund Management LLC | 12.0M | $198.5M | β | 9.702% | 0.50% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 5.5M | $91.1M | -0.3% | 4.453% | 0.02% |
| 4 | TWO SIGMA INVESTMENTS, LP | 4.9M | $81.6M | +1181.4% | 3.989% | 0.06% |
| 5 | WELLS FARGO & COMPANY/MN | 4.5M | $74.4M | +10274.5% | 3.636% | 0.01% |
| 6 | AQR Arbitrage LLC | 2.9M | $47.6M | +60.2% | 2.324% | 0.68% |
| 7 | MILLENNIUM MANAGEMENT LLC | 2.8M | $45.5M | +222.7% | 2.222% | 0.02% |
| 8 | Decagon Asset Management LLP | 2.7M | $44.8M | β | 2.191% | 8.54% |
| 9 | Polar Asset Management Partners Inc. | 2.4M | $39.0M | +68.8% | 1.906% | 0.64% |
| 10 | HSBC HOLDINGS PLC | 2.2M | $37.1M | +0.1% | 1.813% | 0.02% |
| 11 | BALYASNY ASSET MANAGEMENT L.P. | 1.6M | $26.8M | +79.5% | 1.310% | 0.03% |
| 12 | STATE STREET CORP | 1.5M | $24.7M | -65.4% | 1.205% | 0.00% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $24.0M | -45.5% | 1.170% | 0.00% |
| 14 | ALPINE ASSOCIATES MANAGEMENT INC. | 1.3M | $21.5M | +10.8% | 1.052% | 1.35% |
| 15 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.3M | $21.3M | +144.1% | 1.040% | 0.01% |
| 16 | ODDO BHF ASSET MANAGEMENT SAS | 1.2M | $19.9M | β | 0.972% | 0.92% |
| 17 | NORTHERN TRUST CORP | 1.1M | $18.0M | -20.0% | 0.882% | 0.00% |
| 18 | Westchester Capital Management, LLC | 983K | $16.2M | β | 0.793% | 0.79% |
| 19 | GOLDMAN SACHS GROUP INC | 872K | $14.4M | -58.1% | 0.703% | 0.00% |
| 20 | Woodline Partners LP | 861K | $14.2M | -29.8% | 0.694% | 0.04% |
| 21 | D. E. Shaw & Co., Inc. | 798K | $13.2M | -41.3% | 0.644% | 0.01% |
| 22 | Qube Research & Technologies Ltd | 773K | $12.8M | -48.3% | 0.624% | 0.01% |
| 23 | MORGAN STANLEY | 511K | $8.4M | -39.9% | 0.413% | 0.00% |
| 24 | Nuveen, LLC | 412K | $6.8M | +76.7% | 0.332% | 0.00% |
| 25 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 399K | $6.6M | +824.1% | 0.322% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in SEM β a direct measure of their conviction.
Filings activity in SEM during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 242 | 11% | 71.86% | 6.86 pp | $1.27B | 13% |
| Q1 2026 | 273 | +2.2% | 78.72% | 0.80 pp | $1.47B | +26% |
| Q4 2025 | 267 | +2.3% | 79.52% | 1.77 pp | $1.17B | +13% |
| Q3 2025 | 261 | +0.8% | 81.29% | 0.39 pp | $1.04B | 14% |
| Q2 2025 | 259 | 3.0% | 81.68% | 0.06 pp | $1.20B | 11% |
| Q1 2025 | 267 | +0.4% | 81.74% | +0.39 pp | $1.36B | 11% |
| Q4 2024 | 266 | 5.3% | 81.35% | +5.77 pp | $1.53B | 37% |
| Q3 2024 | 281 | β | 75.58% | β | $2.43B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SEM stock.
Based on Q2 2026 13F filings, institutional ownership of Select Medical Holdings Corporation stands at 71.9%, held across 242 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of SEM, with approximately 13,073,640 shares worth $0.22B as of Q2 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of SEM, including TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for SEM is 39 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
40 institutions opened new positions in SEM during Q2 2026, while 73 fully exited. 113 added to existing positions and 77 trimmed.
SEM institutional ownership fell by 6.86 percentage points quarter-over-quarter, with a net change of -31 holders.
The top 10 institutions account for 68.7% of all reported 13F value in SEM, and the top 25 account for 88.3%.
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.
Select Medical Holdings Corporation (SEM) Institutional Ownership