Core Natural Resources (CNR) director updates reported share stake

Rhea-AI Filing Summary

Core Natural Resources, Inc. director Richard A. Navarre filed an amended Form 4 to correct his reported shareholdings. The filing states that an earlier Form 4 contained immaterial clerical rounding errors and now shows that he directly and beneficially owns 24,034 shares of common stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

NAVARRE RICHARD A

(Last) (First) (Middle)

275 TECHNOLOGY DRIVE, SUITE 101

(Street)

CANONSBURG PA 15317

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Core Natural Resources, Inc. [ CNR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)
02/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common stock, par value $0.01 per share								24,034(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. On February 19, 2026, due to immaterial clerical rounding errors, the reporting person filed a Form 4 which inadvertently reported an incorrect total amount of securities directly beneficially owned by the reporting person. The corrected amount of securities beneficially owned by the reporting person is 24,034.

	/s/ Rosemary L. Klein, Attorney-in-Fact for Richard A. Navarre	02/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What does Core Natural Resources (CNR) disclose in this amended Form 4/A?

The amended filing corrects the number of shares directly beneficially owned by director Richard A. Navarre. It replaces a prior Form 4 that contained immaterial clerical rounding errors and now reports his direct holdings as 24,034 common shares.

Did Richard A. Navarre buy or sell Core Natural Resources (CNR) shares in this Form 4/A?

No new purchase or sale is described in this Form 4/A. The filing is solely to correct previously reported ownership, updating Navarre’s directly beneficially owned common stock position to 24,034 shares after earlier clerical rounding errors.

How many Core Natural Resources (CNR) shares does Richard A. Navarre now report owning?

He now reports directly beneficially owning 24,034 shares of Core Natural Resources common stock. This figure corrects an earlier Form 4 that inadvertently showed an incorrect total because of immaterial clerical rounding errors in the prior disclosure.

Why did Core Natural Resources (CNR) director Richard A. Navarre amend his Form 4?

He amended his Form 4 to fix immaterial clerical rounding errors in the previously reported ownership total. The correction clarifies that he directly and beneficially owns 24,034 common shares, replacing the earlier inaccurate but minor rounded figure.

Does this Core Natural Resources (CNR) Form 4/A indicate a change in insider ownership trend?

The Form 4/A reflects a correction, not a new trading decision. It adjusts Richard A. Navarre’s reported direct beneficial ownership to 24,034 shares due to earlier clerical rounding errors, so it does not itself show a new ownership trend.