CNR director sells 6,000 shares in Form 4

Core Natural Resources, Inc. director Richard A. Navarre reported an open-market sale of 6,000 shares of common stock at $91.70 per share.

Rhea-AI Filing Summary

Core Natural Resources, Inc. director Richard A. Navarre reported an open-market sale of 6,000 shares of common stock at $91.70 per share. After the transaction, he directly holds 18,034 shares, of which 2,200 are unvested restricted stock units.

Insider Trade Summary

Net Seller: 6,000 shares

Net Sell 1 txn

Insider NAVARRE RICHARD A

Role Director

Sold 6,000 shs ($550K)

Type	Security	Shares	Price	Value
Sale	Common stock, par value $0.01 per share	6,000	$91.70	$550K

Holdings After Transaction: Common stock, par value $0.01 per share — 18,034 shares (Direct)

Footnotes (1)

1. F1. Of the 18,034 shares reported, 2,200 are unvested restricted stock units.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did CNR director Richard Navarre report?

Richard A. Navarre reported selling 6,000 shares of Core Natural Resources common stock in an open-market transaction at $91.70 per share. The filing shows this as a standard sale of non-derivative common stock on March 10, 2026.

How many Core Natural Resources (CNR) shares does the director hold after the sale?

Following the sale, Richard A. Navarre holds 18,034 shares of Core Natural Resources common stock directly. A footnote explains that 2,200 of these shares are unvested restricted stock units, which typically vest over time according to company equity award terms.

What price did the CNR director receive for the sold shares?

The reported sale price was $91.70 per share for 6,000 shares of Core Natural Resources common stock. This reflects the per-share consideration in the open-market transaction disclosed, providing investors with a clear reference point for the insider’s recent sale activity.

Is the reported CNR insider transaction a buy or a sell?

The Form 4 shows a sell transaction. Richard A. Navarre executed an open-market sale of 6,000 shares, identified with transaction code “S,” which denotes a sale in an open market or private transaction of Core Natural Resources common stock.

Does the CNR director hold any derivative securities after this transaction?

The filing’s derivative section shows no remaining derivative positions for Richard A. Navarre. His reported holdings consist of 18,034 shares of common stock, including 2,200 unvested restricted stock units, indicating equity exposure entirely through common stock rather than options or other derivatives.

Were any of the CNR director’s remaining shares identified as restricted stock units?

Yes. A footnote explains that of the 18,034 shares reported as held after the transaction, 2,200 are unvested restricted stock units. These RSUs typically convert into common shares upon vesting, aligning part of the director’s compensation with long-term shareholder value.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/11/2026 - 11:33 AM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
03/10/2026

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

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	03/10/2026		S		6,000	D	$91.7	18,034(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. Of the 18,034 shares reported, 2,200 are unvested restricted stock units.

	/s/ Rosemary L. Klein, Attorney-in-Fact for Richard A. Navarre	03/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** 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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