Select Medical Holdings Corporation
US ˙ NYSE ˙ US81619Q1058

SecuritySEM / Select Medical Holdings Corporation
InstitutionProShare Advisors LLC
Latest Disclosed Ownership39,259 shares
Latest Disclosed Value $ 639,528
ProShare Advisors LLC reports 87.53% increase in ownership of SEM / Select Medical Holdings Corporation

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 39,259 shares of Select Medical Holdings Corporation (US:SEM) valued at $639,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 20,935 shares of Select Medical Holdings Corporation. This represents a change in shares of 87.53% during the quarter. The current value of the position is $647,381 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F SELECT MED HLDGS COM 81619Q105 39,259 18,324 87.53 640 106.13 0.0009
2026-02-06 2025-12-31 13F SELECT MED HLDGS COM 81619Q105 20,935 -108 -0.51 311 14.81 0.0005
2025-11-06 2025-09-30 13F SELECT MED HLDGS COM 81619Q105 21,043 -3,780 -15.23 270 -28.19 0.0006
2025-08-07 2025-06-30 13F SELECT MED HLDGS COM 81619Q105 24,823 -598 -2.35 377 -11.32 0.0008
2025-05-08 2025-03-31 13F SELECT MED HLDGS COM 81619Q105 25,421 -7,130 -21.90 425 -30.83 0.0010
2025-02-14 2024-12-31 13F SELECT MED HLDGS COM 81619Q105 32,551 10,024 44.50 614 -21.91 0.0014
2024-11-14 2024-09-30 13F SELECT MED HLDGS COM 81619Q105 22,527 6,468 40.28 786 39.43 0.0019
2024-08-13 2024-06-30 13F SELECT MED HLDGS COM 81619Q105 16,059 -4,925 -23.47 563 -10.92 0.0015
2024-05-08 2024-03-31 13F SELECT MED HLDGS COM 81619Q105 20,984 1,441 7.37 633 37.69 0.0017
2024-02-14 2023-12-31 13F SELECT MED HLDGS COM 81619Q105 19,543 3,712 23.45 459 14.75 0.0014
2023-11-13 2023-09-30 13F SELECT MED HLDGS COM 81619Q105 15,831 -416 -2.56 400 -22.63 0.0012
2023-08-10 2023-06-30 13F SELECT MED HLDGS COM 81619Q105 16,247 1,150 7.62 518 32.56 0.0015
2023-05-26 2023-03-31 13F/A-1 SELECT MED HLDGS COM 81619Q105 15,097 -1,338 -8.14 390 -4.41 0.0012
2023-05-12 2023-03-31 13F SELECT MED HLDGS COM 81619Q105 15,097 -1,338 390 0.0012
2023-02-02 2022-12-31 13F SELECT MED HLDGS COM 81619Q105 16,435 2,144 15.00 408 29.11 0.0014
2022-11-07 2022-09-30 13F SELECT MED HLDGS COM 81619Q105 14,291 -804 -5.33 316 -11.48 0.0012
2022-08-01 2022-06-30 13F SELECT MED HLDGS COM 81619Q105 15,095 -9,338 -38.22 357 -39.08 0.0012
2022-05-10 2022-03-31 13F SELECT MED HLDGS COM 81619Q105 24,433 -3,024 -11.01 586 -27.39 0.0013
2022-02-08 2021-12-31 13F SELECT MED HLDGS COM 81619Q105 27,457 10,530 62.21 807 31.86 0.0016
2021-11-12 2021-09-30 13F SELECT MED HLDGS COM 81619Q105 16,927 -14,697 -46.47 612 -54.19 0.0017
2021-08-13 2021-06-30 13F SELECT MED HLDGS COM 81619Q105 31,624 -608 -1.89 1,336 21.57 0.0039
2021-05-14 2021-03-31 13F SELECT MED HLDGS COM 81619Q105 32,232 6,086 23.28 1,099 52.01 0.0035
2021-02-09 2020-12-31 13F SELECT MED HLDGS COM 81619Q105 26,146 10,867 71.12 723 127.36 0.0027
2020-11-13 2020-09-30 13F SELECT MED HLDGS COM 81619Q105 15,279 -1,310 -7.90 318 30.33 0.0015
2020-08-03 2020-06-30 13F SELECT MED HLDGS COM 81619Q105 16,589 16,589 244 0.0013
2020-05-15 2020-03-31 13F SELECT MED HLDGS COM 81619Q105 0 -17,907 -100.00 0 -100.00
2020-02-12 2019-12-31 13F SELECT MED HLDGS COM 81619Q105 17,907 2,578 16.82 418 64.57 0.0019
2019-11-12 2019-09-30 13F SELECT MED HLDGS COM 81619Q105 15,329 672 4.58 254 9.01 0.0014
2019-08-13 2019-06-30 13F SELECT MED HLDGS COM 81619Q105 14,657 -325 -2.17 233 10.43 0.0014
2019-05-15 2019-03-31 13F SELECT MED HLDGS COM 81619Q105 14,982 453 3.12 211 -5.38 0.0013
2019-02-14 2018-12-31 13F SELECT MED HLDGS COM 81619Q105 14,529 -1,566 -9.73 223 -24.66 0.0016
2018-11-14 2018-09-30 13F SELECT MED HLDGS COM 81619Q105 16,095 -1,760 -9.86 296 -8.64 0.0020
2018-08-13 2018-06-30 13F SELECT MED HLDGS COM 81619Q105 17,855 698 4.07 324 9.46 0.0022
2018-05-14 2018-03-31 13F SELECT MED HLDGS COM 81619Q105 17,157 -2,253 -11.61 296 -13.70 0.0019
2018-02-14 2017-12-31 13F SELECT MED HLDGS COM 81619Q105 19,410 19,410 343 0.0024
2017-11-13 2017-09-30 13F SELECT MED HLDGS COM 81619Q105 0 -11,349 -100.00 0 -100.00
2017-08-11 2017-06-30 13F SELECT MED HLDGS COM 81619Q105 11,349 -3,889 -25.52 174 -14.29 0.0017
2017-05-12 2017-03-31 13F/A-2 SELECT MED HLDGS COM 81619Q105 15,238 -4,856 -24.17 203 -23.68 0.0021
2017-05-08 2017-03-31 13F/A-1 SELECT MED HLDGS COM 81619Q105 15,238 0 203 0.0021
2017-04-25 2017-03-31 13F SELECT MED HLDGS COM 81619Q105 15,238 203
2017-02-13 2016-12-31 13F SELECT MED HLDGS COM 81619Q105 20,094 6,877 52.03 266 49.44 0.0029
2016-11-10 2016-09-30 13F SELECT MED HLDGS COM 81619Q105 13,217 -2,793 -17.45 178 2.30 0.0025
2016-08-12 2016-06-30 13F SELECT MED HLDGS COM 81619Q105 16,010 360 2.30 174 -5.95 0.0022
2016-05-06 2016-03-31 13F SELECT MED HLDGS COM 81619Q105 15,650 -2,240 -12.52 185 -13.15 0.0025
2016-02-05 2015-12-31 13F SELECT MED HLDGS COM 81619Q105 17,890 5,914 49.38 213 65.12 0.0026
2015-11-06 2015-09-30 13F SELECT MED HLDGS COM 81619Q105 11,976 -3,034 -20.21 129 -46.91 0.0018
2015-08-11 2015-06-30 13F SELECT MED HLDGS COM 81619Q105 15,010 -2,810 -15.77 243 -7.95 0.0034
2015-05-08 2015-03-31 13F SELECT MED HLDGS COM 81619Q105 17,820 17,820 0.00 264 0.0031
2015-01-30 2014-12-31 13F SELECT MED HLDGS COM 81619Q105 0 -31,262 -100.00 0 -100.00
2014-11-06 2014-09-30 13F SELECT MED HLDGS COM 81619Q105 31,262 -7,080 -18.47 376 -37.12 0.0050
2014-08-08 2014-06-30 13F SELECT MED HLDGS COM 81619Q105 38,342 -10,881 -22.11 598 -2.45 0.0077
2014-05-07 2014-03-31 13F SELECT MED HLDGS COM 81619Q105 49,223 49,223 59.29 613 146.18 0.0077
2014-02-04 2013-12-31 13F SELECT MED HLDGS COM 81619Q105 0 -30,901 -100.00 0 -100.00
2013-11-07 2013-09-30 13F SELECT MED HLDGS COM 81619Q105 30,901 8,328 36.89 249 34.59 0.0059
2013-07-25 2013-06-30 13F SELECT MED HLDGS COM 81619Q105 22,573 22,573 185 0.0036
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.