Select Medical Holdings Corporation
US ˙ NYSE ˙ US81619Q1058

SecuritySEM / Select Medical Holdings Corporation
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership270,752 shares
Latest Disclosed Value $ 4,410,550
Squarepoint Ops LLC reports 536.00% increase in ownership of SEM / Select Medical Holdings Corporation

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 270,752 shares of Select Medical Holdings Corporation (US:SEM) valued at $4,410,550 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 42,571 shares of Select Medical Holdings Corporation. This represents a change in shares of 536.00% during the quarter. The current value of the position is $4,464,700 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)
2026-05-15 2026-03-31 13F SELECT MED HLDGS COM 81619Q105 270,752 228,181 536.00 4,411 597.78 0.0052
2026-02-13 2025-12-31 13F SELECT MED HLDGS COM 81619Q105 42,571 42,571 632 0.0007
2025-11-14 2025-09-30 13F SELECT MED HLDGS COM 81619Q105 0 -61,295 -100.00 0 -100.00
2025-08-27 2025-06-30 13F/A-1 SELECT MED HLDGS COM 81619Q105 61,295 -147,232 -70.61 930 -73.29 0.0010
2025-08-14 2025-06-30 13F SELECT MED HLDGS COM 81619Q105 61,295 -147,232 930 0.0010
2025-08-27 2025-03-31 13F/A-1 SELECT MED HLDGS COM 81619Q105 208,527 -34,229 -14.10 3,482 -23.89 0.0042
2025-05-15 2025-03-31 13F SELECT MED HLDGS COM 81619Q105 208,527 -34,229 3,482 0.0042
2025-02-14 2024-12-31 13F SELECT MED HLDGS COM 81619Q105 242,756 199,429 460.29 4,576 202.98 0.0045
2024-11-14 2024-09-30 13F SELECT MED HLDGS COM 81619Q105 43,327 43,327 1,511 0.0024
2024-02-14 2023-12-31 13F SELECT MED HLDGS COM 81619Q105 0 -41,727 -100.00 0 -100.00
2023-11-14 2023-09-30 13F SELECT MED HLDGS COM 81619Q105 41,727 41,727 1,054 0.0026
2023-08-14 2023-06-30 13F SELECT MED HLDGS COM 81619Q105 0 -20,417 -100.00 0 -100.00
2023-05-15 2023-03-31 13F SELECT MED HLDGS COM 81619Q105 20,417 -58,143 -74.01 528 -72.97 0.0022
2023-02-14 2022-12-31 13F SELECT MED HLDGS COM 81619Q105 78,560 34,580 78.63 1,951 100.62 0.0077
2022-11-14 2022-09-30 13F SELECT MED HLDGS COM 81619Q105 43,980 43,980 972 0.0049
2022-08-15 2022-06-30 13F SELECT MED HLDGS COM 81619Q105 0 -56,787 -100.00 0 -100.00
2022-05-16 2022-03-31 13F SELECT MED HLDGS COM 81619Q105 56,787 40,136 241.04 1,362 177.96 0.0058
2022-02-14 2021-12-31 13F SELECT MED HLDGS COM 81619Q105 16,651 -48,332 -74.38 490 -79.15 0.0013
2021-11-15 2021-09-30 13F SELECT MED HLDGS COM 81619Q105 64,983 -48,991 -42.98 2,350 -51.21 0.0068
2021-08-16 2021-06-30 13F SELECT MED HLDGS COM 81619Q105 113,974 106,302 1,385.58 4,817 1,738.55 0.0183
2021-05-17 2021-03-31 13F SELECT MED HLDGS COM 81619Q105 7,672 -9,571 -55.51 262 -45.07 0.0015
2021-02-16 2020-12-31 13F SELECT MED HLDGS COM 81619Q105 17,243 17,243 477 0.0036
2020-11-16 2020-09-30 13F SELECT MED HLDGS COM 81619Q105 0 -151,033 -100.00 0 -100.00
2020-08-14 2020-06-30 13F SELECT MED HLDGS COM 81619Q105 151,033 22,623 17.62 2,225 15.52 0.0360
2020-05-15 2020-03-31 13F SELECT MED HLDGS COM 81619Q105 128,410 128,410 1,926 0.0493
2019-11-14 2019-09-30 13F SELECT MED HLDGS COM 81619Q105 0 -46,968 -100.00 0 -100.00
2019-08-14 2019-06-30 13F SELECT MED HLDGS COM 81619Q105 46,968 -18,747 -28.53 745 -19.55 0.0073
2019-05-15 2019-03-31 13F SELECT MED HLDGS COM 81619Q105 65,715 65,715 926 0.0098
2018-05-15 2018-03-31 13F SELECT MED HLDGS COM 81619Q105 0 -29,630 -100.00 0 -100.00
2018-02-14 2017-12-31 13F SELECT MED HLDGS COM 81619Q105 29,630 29,630 523 0.0091
2017-08-14 2017-06-30 13F SELECT MED HLDGS COM 81619Q105 0 -18,833 -100.00 0 -100.00
2017-05-15 2017-03-31 13F SELECT MED HLDGS COM 81619Q105 18,833 18,833 251 0.0069
2016-11-14 2016-09-30 13F SELECT MED HLDGS COM 81619Q105 0 -18,737 -100.00 0 -100.00
2016-08-15 2016-06-30 13F SELECT MED HLDGS COM 81619Q105 18,737 -25,913 -58.04 204 -61.29 0.0127
2016-05-16 2016-03-31 13F SELECT MED HLDGS COM 81619Q105 44,650 30,580 217.34 527 213.69 0.0409
2016-02-16 2015-12-31 13F SELECT MED HLDGS COM 81619Q105 14,070 14,070 168 0.0184
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.