Select Medical Holdings Corporation
US ˙ NYSE ˙ US81619Q1058

SecuritySEM / Select Medical Holdings Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership136,009 shares
Latest Disclosed Value $ 2,215,586
Citigroup Inc reports 324.23% increase in ownership of SEM / Select Medical Holdings Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 136,009 shares of Select Medical Holdings Corporation (US:SEM) valued at $2,215,587 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 32,060 shares of Select Medical Holdings Corporation. This represents a change in shares of 324.23% during the quarter. The current value of the position is $2,242,788 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)
2026-05-11 2026-03-31 13F SELECT MED HLDGS COM 81619Q105 136,009 103,949 324.23 2,216 365.34 0.0005
2026-02-13 2025-12-31 13F SELECT MED HLDGS COM 81619Q105 32,060 -85,683 -72.77 476 -68.50 0.0002
2025-11-10 2025-09-30 13F SELECT MED HLDGS COM 81619Q105 117,743 12,188 11.55 1,512 -5.68 0.0007
2025-08-11 2025-06-30 13F SELECT MED HLDGS COM 81619Q105 105,555 -222,700 -67.84 1,602 -70.77 0.0008
2025-05-12 2025-03-31 13F SELECT MED HLDGS COM 81619Q105 328,255 -1,999 -0.61 5,482 -11.95 0.0028
2025-02-12 2024-12-31 13F SELECT MED HLDGS COM 81619Q105 330,254 189,551 134.72 6,225 26.89 0.0037
2024-11-12 2024-09-30 13F SELECT MED HLDGS COM 81619Q105 140,703 64,751 85.25 4,906 84.30 0.0028
2024-08-12 2024-06-30 13F SELECT MED HLDGS COM 81619Q105 75,952 8,562 12.71 2,663 31.07 0.0017
2024-05-10 2024-03-31 13F SELECT MED HLDGS COM 81619Q105 67,390 -16,359 -19.53 2,032 3.20 0.0013
2024-02-09 2023-12-31 13F SELECT MED HLDGS COM 81619Q105 83,749 37,639 81.63 1,968 68.93 0.0014
2023-12-06 2023-09-30 13F/A-1 SELECT MED HLDGS COM 81619Q105 46,110 -36,046 -43.88 1,165 -55.48 0.0009
2023-11-09 2023-09-30 13F SELECT MED HLDGS COM 81619Q105 46,110 -36,046 1,165 0.0009
2023-08-10 2023-06-30 13F SELECT MED HLDGS COM 81619Q105 82,156 30,185 58.08 2,617 94.86 0.0017
2023-05-11 2023-03-31 13F SELECT MED HLDGS COM 81619Q105 51,971 -12,452 -19.33 1,343 -16.01 0.0009
2023-02-09 2022-12-31 13F SELECT MED HLDGS COM 81619Q105 64,423 11,529 21.80 1,600 36.78 0.0013
2022-11-10 2022-09-30 13F SELECT MED HLDGS COM 81619Q105 52,894 3,027 6.07 1,169 -0.85 0.0008
2022-08-10 2022-06-30 13F SELECT MED HLDGS COM 81619Q105 49,867 -47,321 -48.69 1,179 -49.44 0.0009
2022-05-12 2022-03-31 13F SELECT MED HLDGS COM 81619Q105 97,188 -3,493 -3.47 2,332 -21.22 0.0014
2022-02-10 2021-12-31 13F SELECT MED HLDGS COM 81619Q105 100,681 21,582 27.28 2,960 3.46 0.0016
2021-11-10 2021-09-30 13F SELECT MED HLDGS COM 81619Q105 79,099 -21,286 -21.20 2,861 -32.57 0.0017
2021-08-10 2021-06-30 13F SELECT MED HLDGS COM 81619Q105 100,385 43,069 75.14 4,243 117.14 0.0026
2021-05-13 2021-03-31 13F SELECT MED HLDGS COM 81619Q105 57,316 -11,604 -16.84 1,954 2.52 0.0013
2021-02-11 2020-12-31 13F SELECT MED HLDGS COM 81619Q105 68,920 27,735 67.34 1,906 122.40 0.0011
2020-11-12 2020-09-30 13F SELECT MED HLDGS COM 81619Q105 41,185 -8,976 -17.89 857 15.97 0.0006
2020-08-12 2020-06-30 13F SELECT MED HLDGS COM 81619Q105 50,161 -29,676 -37.17 739 -38.26 0.0006
2020-05-12 2020-03-31 13F SELECT MED HLDGS COM 81619Q105 79,837 -34,729 -30.31 1,197 -55.24 0.0011
2020-02-12 2019-12-31 13F SELECT MED HLDGS COM 81619Q105 114,566 31,946 38.67 2,674 95.33 0.0019
2019-11-08 2019-09-30 13F SELECT MED HLDGS COM 81619Q105 82,620 -2,511 -2.95 1,369 1.33 0.0011
2019-08-12 2019-06-30 13F SELECT MED HLDGS COM 81619Q105 85,131 8,301 10.80 1,351 24.86 0.0011
2019-05-13 2019-03-31 13F SELECT MED HLDGS COM 81619Q105 76,830 15,876 26.05 1,082 15.72 0.0010
2019-02-12 2018-12-31 13F SELECT MED HLDGS COM 81619Q105 60,954 34,894 133.90 935 94.79 0.0009
2018-11-13 2018-09-30 13F SELECT MED HLDGS COM 81619Q105 26,060 -7,865 -23.18 480 -22.08 0.0004
2018-08-10 2018-06-30 13F SELECT MED HLDGS COM 81619Q105 33,925 31,408 1,247.83 616 1,332.56 0.0006
2018-05-11 2018-03-31 13F SELECT MED HLDGS COM 81619Q105 2,517 -33,283 -92.97 43 -93.19 0.0000
2018-02-12 2017-12-31 13F SELECT MED HLDGS COM 81619Q105 35,800 -36,127 -50.23 631 -54.31 0.0005
2017-11-13 2017-09-30 13F SELECT MED HLDGS COM 81619Q105 71,927 -58,968 -45.05 1,381 -31.26 0.0011
2017-08-11 2017-06-30 13F SELECT MED HLDGS COM 81619Q105 130,895 21,728 19.90 2,009 37.79 0.0018
2017-05-12 2017-03-31 13F SELECT MED HLDGS COM 81619Q105 109,167 -101,728 -48.24 1,458 -47.82 0.0013
2017-02-10 2016-12-31 13F SELECT MED HLDGS COM 81619Q105 210,895 126,163 148.90 2,794 144.23 0.0025
2016-11-10 2016-09-30 13F SELECT MED HLDGS COM 81619Q105 84,732 32,240 61.42 1,144 100.70 0.0011
2016-08-12 2016-06-30 13F SELECT MED HLDGS COM 81619Q105 52,492 -23,273 -30.72 570 -36.31 0.0006
2016-05-13 2016-03-31 13F SELECT MED HLDGS COM 81619Q105 75,765 73,848 3,852.27 895 3,791.30 0.0010
2016-02-12 2015-12-31 13F SELECT MED HLDGS COM 81619Q105 1,917 795 70.86 23 91.67 0.0000
2015-11-13 2015-09-30 13F SELECT MED HLDGS COM 81619Q105 1,122 -1,740 -60.80 12 -73.91 0.0000
2015-08-13 2015-06-30 13F SELECT MED HLDGS COM 81619Q105 2,862 675 30.86 46 43.75 0.0000
2015-05-14 2015-03-31 13F SELECT MED HLDGS COM 81619Q105 2,187 -56,236 -96.26 32 -96.20 0.0000
2015-02-17 2014-12-31 13F SELECT MED HLDGS COM 81619Q105 58,423 -5,199 -8.17 841 9.79 0.0008
2014-11-14 2014-09-30 13F SELECT MED HLDGS COM 81619Q105 63,622 22,065 53.10 766 18.21 0.0007
2014-08-14 2014-06-30 13F SELECT MED HLDGS COM 81619Q105 41,557 27,742 200.81 648 276.74 0.0006
2014-05-15 2014-03-31 13F SELECT MED HLDGS COM 81619Q105 13,815 -5,376 -28.01 172 -22.87 0.0002
2014-02-14 2013-12-31 13F SELECT MED HLDGS COM 81619Q105 19,191 10,373 117.63 223 214.08 0.0002
2013-11-14 2013-09-30 13F SELECT MED HLDGS COM 81619Q105 8,818 -13,384 -60.28 71 -60.99 0.0001
2013-08-14 2013-06-30 13F SELECT MED HLDGS COM 81619Q105 22,202 22,202 182 0.0002
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.