Select Medical Holdings Corporation
US ˙ NYSE ˙ US81619Q1058

SecuritySEM / Select Medical Holdings Corporation
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership193,768 shares
Latest Disclosed Value $ 2,941,398
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 4.80% increase in ownership of SEM / Select Medical Holdings Corporation

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 193,768 shares of Select Medical Holdings Corporation (US:SEM) valued at $2,941,398 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 184,895 shares of Select Medical Holdings Corporation. This represents a change in shares of 4.80% during the quarter. The current value of the position is $3,195,234 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)
2025-08-26 2025-06-30 NP Select Medical Holdings EC US81619Q1058 193,768 8,873 4.80 2,941 -4.73 0.0661
2025-05-28 2025-03-31 NP Select Medical Holdings EC US81619Q1058 184,895 2,355 1.29 3,088 -10.26 0.0741
2025-02-25 2024-12-31 NP Select Medical Holdings EC US81619Q1058 182,540 -27,651 -13.16 3,441 -53.06 0.0751
2024-11-26 2024-09-30 NP Select Medical Holdings EC US81619Q1058 210,191 13,047 6.62 7,329 6.05 0.1386
2024-08-26 2024-06-30 NP Select Medical Holdings EC US81619Q1058 197,144 15,133 8.31 6,912 25.95 0.1408
2024-05-28 2024-03-31 NP Select Medical Holdings EC US81619Q1058 182,011 -7,348 -3.88 5,488 23.33 0.1145
2024-02-26 2023-12-31 NP Select Medical Holdings EC US81619Q1058 189,359 13,011 7.38 4,450 -0.16 0.0950
2023-11-28 2023-09-30 NP Select Medical Holdings EC US81619Q1058 176,348 -3,978 -2.21 4,456 -22.44 0.1163
2023-08-25 2023-06-30 NP Select Medical Holdings EC US81619Q1058 180,326 14,480 8.73 5,745 34.01 0.1362
2023-05-26 2023-03-31 NP Select Medical Holdings EC US81619Q1058 165,846 1,554 0.95 4,287 5.10 0.1142
2023-02-24 2022-12-31 NP Select Medical Holdings EC US81619Q1058 164,292 -2,738 -1.64 4,079 10.51 0.1122
2022-11-25 2022-09-30 NP Select Medical Holdings EC US81619Q1058 167,030 139 0.08 3,691 -6.34 0.1058
2022-08-25 2022-06-30 NP Select Medical Holdings EC US81619Q1058 166,891 -4,709 -2.74 3,942 -4.25 0.1089
2022-05-26 2022-03-31 NP Select Medical Holdings EC US81619Q1058 171,600 2,470 1.46 4,117 -17.22 0.0959
2022-02-25 2021-12-31 NP Select Medical Holdings EC US81619Q1058 169,130 1,800 1.08 4,972 -17.85 0.1078
2021-11-24 2021-09-30 NP Select Medical Holdings EC US81619Q1058 167,330 0 0.00 6,052 -14.41 0.1333
2021-08-26 2021-06-30 NP Select Medical Holdings EC US81619Q1058 167,330 2,287 1.39 7,071 25.66 0.1517
2021-05-27 2021-03-31 NP Select Medical Holdings EC US81619Q1058 165,043 -5,590 -3.28 5,628 19.24 0.1276
2021-02-25 2020-12-31 NP Select Medical Holdings EC US81619Q1058 170,633 -5,590 -3.17 4,720 28.65 0.1209
2020-11-25 2020-09-30 NP Select Medical Holdings EC US81619Q1058 176,223 -5,022 -2.77 3,669 37.43 0.1177
2020-08-27 2020-06-30 NP Select Medical Holdings EC US81619Q1058 181,245 2,131 1.19 2,670 -0.63 0.0873
2020-06-01 2020-03-31 NP Select Medical Holdings EC US81619Q1058 179,114 630 0.35 2,687 -35.51 0.1098
2020-02-27 2019-12-31 NP Select Medical Holdings EC 81619Q105 178,484 10,739 6.40 4,166 49.87 0.1253
2019-11-27 2019-09-30 NP Select Medical Holdings EC US81619Q1058 167,745 167,745 2,780 0.0919
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.