Core Natural (CNR) CEO gifts 48,880 shares while retaining large stake

Rhea-AI Filing Summary

Core Natural Resources, Inc. director and Executive Chair/CEO Brock James A reported bona fide gifts of a total of 48,880 shares of common stock on 2026-03-24.

The filing shows 24,440 shares gifted from an indirect holding by the Lee Ann Brock Trust and 24,440 shares gifted from his direct holdings, both at a reported price of $0.00 per share, reflecting non-cash transfers.

After these transactions, he holds 291,415 shares directly, including 44,640 unvested restricted stock units, and also has indirect holdings of 100,000 shares through SLAT-1 and 117,398 shares through GRAT-1. Footnotes state the gifts were made under a long-term strategy for estate planning purposes.

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

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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^*

Brock James A

(Last) (First) (Middle)

275 TECHNOLOGY DRIVE, SUITE 101

(Street)

CANONSBURG PENNSYLVANIA 15317

(City) (State) (Zip)

UNITED STATES

(Country)

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
X	Officer (give title below)		Other (specify below)
	Executive Chair and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026

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

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

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

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	03/24/2026		G		24,440(1)	D	$0	0	I	By Lee Ann Brock Trust
Common stock, par value $0.01 per share	03/24/2026		G		24,440(2)	A	$0	291,415(3)	D
Common stock, par value $0.01 per share								100,000	I	By SLAT-1
Common stock, par value $0.01 per share								117,398	I	By GRAT-1

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. This disposition was made in connection with a gift under a long-term strategy for estate planning purposes.

2. This acquisition was made in connection with a gift under a long-term strategy for estate planning purposes.

3. Of the 291,415 shares reported, 44,640 are unvested restricted stock units.

	/s/ Rosemary L. Klein, as Attorney-in-Fact for James A. Brock	03/25/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Core Natural (CNR) disclose for Brock James A?

Core Natural disclosed that Brock James A reported bona fide gifts of company stock. The Form 4 shows two gift transactions of common shares, classified as non-cash dispositions, rather than open-market sales, and described as part of a long-term estate planning strategy.

How many Core Natural (CNR) shares did the CEO gift in this Form 4?

The CEO reported gifting a total of 48,880 Core Natural common shares. This consisted of 24,440 shares from an indirect holding by the Lee Ann Brock Trust and 24,440 shares from his direct holdings, both recorded at a per-share price of zero dollars.

How many Core Natural (CNR) shares does Brock James A hold after the gifts?

After the reported gifts, Brock James A directly holds 291,415 Core Natural shares. Footnotes note that 44,640 of these are unvested restricted stock units, and he also has indirect holdings of 100,000 shares through SLAT-1 and 117,398 shares through GRAT-1.

Were the Core Natural (CNR) insider transactions open-market sales or gifts?

The reported Core Natural insider transactions were bona fide gifts, not open-market sales. Both entries use transaction code G, with a zero-dollar price per share, indicating non-cash transfers made in connection with a long-term estate planning strategy, according to the footnotes.

What do the Core Natural (CNR) Form 4 footnotes say about the gifts?

The Form 4 footnotes explain that the disposition was made in connection with a gift under a long-term estate planning strategy. They also state that part of the reported direct holding, 44,640 shares, consists of unvested restricted stock units included in the 291,415 direct shares.