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US ˙ NYSE ˙ US20854L1089

SecurityCNR / Core Natural Resources, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership91,709 shares
Latest Disclosed Value $ 6,395,785
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 2.36% increase in ownership of CNR / Core Natural Resources, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 91,709 shares of Core Natural Resources, Inc. (US:CNR) valued at $6,395,786 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 89,595 shares of Core Natural Resources, Inc.. This represents a change in shares of 2.36% during the quarter. The current value of the position is $8,569,289 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 Core Natural Resources EC US2189371006 91,709 2,114 2.36 6,396 -7.41 0.1436
2025-05-28 2025-03-31 NP Core Natural Resources EC US2189371006 89,595 -8,137 -8.33 6,908 188.63 0.1657
2022-08-25 2022-06-30 NP Cornerstone Building Brands EC US21925D1090 97,732 13,055 15.42 2,393 16.22 0.0661
2022-05-26 2022-03-31 NP Cornerstone Building Brands EC US21925D1090 84,677 1,098 1.31 2,059 41.32 0.0480
2022-02-25 2021-12-31 NP Cornerstone Building Brands EC US21925D1090 83,579 0 0.00 1,458 19.33 0.0316
2021-11-24 2021-09-30 NP Cornerstone Building Brands EC US21925D1090 83,579 0 0.00 1,221 -19.62 0.0269
2021-08-26 2021-06-30 NP Cornerstone Building Brands EC US21925D1090 83,579 18,575 28.58 1,519 66.56 0.0326
2021-05-27 2021-03-31 NP Cornerstone Building Brands EC US21925D1090 65,004 0 0.00 912 51.24 0.0207
2021-02-25 2020-12-31 NP Cornerstone Building Brands EC US21925D1090 65,004 -11,820 -15.39 603 -1.63 0.0155
2020-11-25 2020-09-30 NP Cornerstone Building Brands EC US21925D1090 76,824 0 0.00 613 31.83 0.0197
2020-08-27 2020-06-30 NP Cornerstone Building Brands EC US21925D1090 76,824 2,653 3.58 466 37.57 0.0152
2020-06-01 2020-03-31 NP Cornerstone Building Brands EC US21925D1090 74,171 4,022 5.73 338 -43.29 0.0138
2020-02-27 2019-12-31 NP Cornerstone Building Brands EC 21925D109 70,149 821 1.18 597 42.24 0.0180
2019-11-27 2019-09-30 NP Cornerstone Building Brands EC US21925D1090 69,328 69,328 419 0.0139
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.