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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1710366	Core Natural Resources Inc.	CNR	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1382977	A Paul Lang	275 Technology Drive, Suite 101 Canonsburg PA 15317	Chief Executive Officer	No	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock, Par Value $0.01 Per Share	Acquisiton	2025-05-09	7,500	$66.95	341,062	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct

Footnotes

This transaction was executed in multiple trades at prices ranging from $66.88 to $66.96 per share. The price reported above reflects the weighted average purchase price on the date indicated. The Reporting Person hereby undertakes to provide upon request to the Securities Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares purchased at each price within the ranges set forth in footnote (1) to this Form 4.
Of the 341,062 shares reported, 40,192 are unvested restricted stock units.