Select Medical HoldingsSEM
13F holders, Q1 2026 (March 31)278holders +10
55new positions
44sold out
8famous investors
$16.29avg. 13F price*
At the end of Q1 2026, 278 institutions reported holding Select Medical Holdings Corp. (SEM) in their 13F filings, up 10 from Q4 2025. 55 opened new positions and 44 sold out. The largest holders were BlackRock, Inc. ($281.2M), Vanguard Portfolio Management LLC ($109.5M) and Dimensional Fund Advisors LP ($90.2M). 8 famous investors held it, including George Soros (0.6% of Soros Fund Management's portfolio), Jeremy Grantham (0.0% of GMO's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Select Medical Holdings Corp.
- CUSIP
- 81619Q105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 55 | $363.8M |
| Exits | 44 | $124.3M |
All 13F filers, Q4 2025 → Q1 2026: 31,850,753 shares bought and 33,677,568 shares sold, net −1,826,815 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 278 holders
| BlackRock, Inc. | 0.00% | Reduce -7.7% | 17,263,327 | $281.2M |
| Vanguard Portfolio Management LLC | 0.01% | — | 6,723,557 | $109.5M |
| Dimensional Fund Advisors LP | 0.02% | Add +3.8% | 5,536,331 | $90.2M |
| FIL Ltd | 0.06% | New | 4,960,732 | $80.8M |
| Vanguard Capital Management LLC | 0.00% | — | 4,819,685 | $78.5M |
| State Street Corp. | 0.00% | Reduce -1.8% | 4,319,877 | $70.4M |
| Glazer Capital, LLC | 1.48% | New | 4,079,780 | $66.5M |
| Geode Capital Management, LLC | 0.00% | Reduce -14.6% | 2,661,944 | $43.4M |
| HSBC Holdings PLC | 0.02% | Add +7554.6% | 2,245,163 | $36.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +319.2% | 2,081,883 | $33.9M |
| T. Rowe Price Investment Management, Inc. | 0.02% | Reduce -28.1% | 2,032,392 | $33.1M |
| Soros Fund Management | 0.55% | New | 1,833,473 | $29.9M |
| AQR Arbitrage LLC | 0.58% | New | 1,798,360 | $29.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.1% | 1,704,603 | $27.8M |
| Qube Research & Technologies Ltd | 0.03% | Add +707.5% | 1,495,433 | $24.4M |
| Nexpoint Asset Management, L.P. | 1.69% | New | 1,478,770 | $24.1M |
| Polar Asset Management Partners Inc. | 0.74% | New | 1,400,000 | $22.8M |
| Northern Trust Corp. | 0.00% | Add +5.7% | 1,366,882 | $22.3M |
| D. E. Shaw & Co. | 0.02% | Reduce -38.5% | 1,360,925 | $22.2M |
| Woodline Partners LP | 0.08% | Reduce -8.5% | 1,226,195 | $20.0M |
| Alpine Associates Management Inc. | 1.13% | New | 1,176,700 | $19.2M |
| TIG Advisors, LLC | 0.83% | Add +1318.7% | 1,071,046 | $17.4M |
| Bank of New York Mellon Corp | 0.00% | Add +0.5% | 1,067,640 | $17.4M |
| GMO | 0.04% | New | 986,809 | $16.1M |
| Invesco Ltd. | 0.00% | Reduce -8.6% | 934,413 | $15.2M |
| Balyasny Asset Management L.P. | 0.03% | Add +1501.6% | 904,737 | $14.7M |
| Millennium Management | 0.01% | Add +55.7% | 853,442 | $13.9M |
| Morgan Stanley | 0.00% | Reduce -11.9% | 851,429 | $13.9M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 709,077 | $11.6M |
| Dana Investment Advisors, Inc. | 0.33% | Reduce -0.2% | 676,987 | $11.0M |
| Adage Capital Partners Gp, L.L.C. | 0.02% | Reduce -44.5% | 658,467 | $10.7M |
| Bank of America Corp. | 0.00% | Reduce -50.8% | 639,398 | $10.4M |
| Cambria Investment Management, L.P. | 0.50% | Reduce -0.7% | 553,728 | $9.0M |
| Gardner Lewis Asset Management L P | 1.95% | New | 551,920 | $9.0M |
| Principal Financial Group Inc. | 0.00% | Add +1.6% | 535,625 | $8.7M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +43.6% | 528,194 | $8.6M |
| Picton Mahoney Asset Management | 0.08% | New | 500,000 | $8.1M |
| Victory Capital Management Inc. | 0.00% | Add +21.4% | 435,643 | $7.1M |
| Public Sector Pension Investment Board | 0.02% | Add +3.4% | 394,194 | $6.4M |
| Two Sigma Investments, LP | 0.01% | Add +5.3% | 385,804 | $6.3M |
| Caxton Associates LLP | 0.13% | Add +1868.6% | 349,564 | $5.7M |
| Rhumbline Advisers | 0.00% | Add +1.2% | 316,066 | $5.1M |
| Bridgeway Capital Management, LLC | 0.10% | Reduce -60.3% | 312,836 | $5.1M |
| Man Group plc | 0.01% | New | 300,000 | $4.9M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.01% | New | 300,000 | $4.9M |
| JPMorgan Chase & Co. | 0.00% | Add +31.2% | 290,638 | $4.7M |
| Groupe la Francaise | 0.06% | New | 282,497 | $4.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +4.8% | 271,754 | $4.4M |
| Squarepoint Ops LLC | 0.01% | Add +536.0% | 270,752 | $4.4M |
| Denali Advisors LLC | 0.48% | No change | 263,100 | $4.3M |
| Legal & General Group Plc | 0.00% | Reduce -7.5% | 262,383 | $4.3M |
| UBS Group AG | 0.00% | Add +36.4% | 257,440 | $4.2M |
| Nuveen, LLC | 0.00% | Add +2.4% | 233,085 | $3.8M |
| First Trust Advisors LP | 0.00% | Reduce -25.1% | 232,046 | $3.8M |
| SG Americas Securities, LLC | 0.00% | Add +543.9% | 231,988 | $3.8M |
| Prelude Capital Management, LLC | 0.29% | New | 231,705 | $3.8M |
| Swiss National Bank | 0.00% | No change | 220,100 | $3.6M |
| Capula Management Ltd | 0.03% | New | 206,810 | $3.4M |
| Ameriprise Financial Inc. | 0.00% | Reduce -26.5% | 185,824 | $3.0M |
| State Board of Administration of Florida Retirement System | 0.01% | Add +9.5% | 178,230 | $2.9M |
| Carmignac Gestion | 0.04% | New | 174,516 | $2.8M |
| Clough Capital Partners L P | 0.27% | No change | 173,010 | $2.8M |
| Gabelli Funds LLC | 0.02% | New | 173,000 | $2.8M |
| Credit Industriel Et Commercial | 0.48% | New | 167,503 | $2.7M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -99.0% | 165,144 | $2.7M |
| Larson Financial Group LLC | 0.08% | Add +13.7% | 161,326 | $2.6M |
| Empowered Funds, LLC | 0.02% | Reduce -66.2% | 159,689 | $2.6M |
| HRT Financial LP | 0.01% | Add +114.0% | 159,632 | $2.6M |
| OMERS ADMINISTRATION Corp | 0.02% | New | 159,400 | $2.6M |
| Wolverine Asset Management LLC | 0.13% | New | 155,190 | $2.5M |
| Hudson Bay Capital Management LP | 0.02% | New | 150,970 | $2.5M |
| Moore Capital Management, LP | 0.09% | Add +482.0% | 145,500 | $2.4M |
| Versor Investments LP | 5.77% | New | 144,727 | $2.4M |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.34% | New | 140,650 | $2.3M |
| Alliancebernstein L.P. | 0.00% | No change | 151,668 | $2.3M |
| Atom Investors LP | 0.16% | Reduce -46.2% | 136,415 | $2.2M |
| Citigroup Inc. | 0.00% | Add +324.2% | 136,009 | $2.2M |
| Teacher Retirement System of Texas | 0.01% | Add +8.9% | 130,785 | $2.1M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | Add +16.4% | 123,005 | $2.0M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -9.8% | 122,583 | $2.0M |
| Linden Thomas Advisory Services, LLC | 0.19% | Add +94.6% | 118,519 | $1.9M |
| Prudential Financial Inc. | 0.00% | Reduce -13.2% | 113,490 | $1.8M |
| Jane Street Group, LLC | 0.00% | Reduce -56.9% | 111,408 | $1.8M |
| AQR Capital Management | 0.00% | Add +25.1% | 109,584 | $1.8M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 106,079 | $1.7M |
| First Trust Capital Management L.P. | 0.09% | New | 105,446 | $1.7M |
| California State Teachers Retirement System | 0.00% | Reduce -0.8% | 105,245 | $1.7M |
| Water Island Capital LLC | 0.24% | New | 103,467 | $1.7M |
| Occudo Quantitative Strategies LP | 0.09% | New | 102,636 | $1.7M |
| OP Asset Management Ltd | 0.02% | New | 101,953 | $1.7M |
| New York State Common Retirement Fund | 0.00% | No change | 99,377 | $1.6M |
| Deutsche Bank AG | 0.00% | Add +11.6% | 98,883 | $1.6M |
| CANADA LIFE ASSURANCE Co | 0.00% | Reduce -4.8% | 91,896 | $1.5M |
| Franklin Resources Inc. | 0.00% | Reduce -40.6% | 85,249 | $1.4M |
| Brevan Howard Capital Management LP | 0.01% | Add +103.6% | 82,027 | $1.3M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.01% | Add +183.2% | 77,251 | $1.3M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -2.9% | 73,753 | $1.2M |
| Voleon Capital Management LP | 0.02% | Reduce -53.2% | 69,812 | $1.1M |
| Blackstone Inc. | 0.00% | New | 65,825 | $1.1M |
| Jump Financial, LLC | 0.02% | Add +3.0% | 65,490 | $1.1M |
"% of holder's portfolio" is SEM's weight in each manager's 13F, not the share of Select Medical Holdings Corp. the manager owns.