Core Natural Resources (CNR) SVP gets 5,060 RSUs, withholds shares for taxes

Rhea-AI Filing Summary

Core Natural Resources SVP Slone Deck reported routine equity compensation and related tax withholding transactions. On February 17, 2026, Deck received a grant of 5,060 restricted stock units that vest in equal annual installments over three years, each unit representing one share of common stock. On February 18, 2026, the company withheld 487 and 731 shares of common stock at $88.96 per share to cover Deck’s tax obligations from previously vesting awards. Following these transactions, Deck held 70,207 shares of common stock directly, including 10,917 unvested restricted stock units.

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^*

Slone Deck

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Strategy & Public Policy

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

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	02/17/2026		A		5,060(1)	A	$0	71,425	D
Common stock, par value $0.01 per share	02/18/2026		F		487(2)	D	$88.96	70,938	D
Common stock, par value $0.01 per share	02/18/2026		F		731(2)	D	$88.96	70,207(3)	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. Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest annually in equal installments over a period of three years, beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

2. Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of restricted stock units previously granted to him.

3. Of the 70,207 shares reported, 10,917 are unvested restricted stock units.

	/s/ Rosemary L. Klein, Attorney-in-Fact for Deck Slone	02/19/2026
	** 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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FAQ

What insider transactions did CNR executive Slone Deck report on this Form 4?

Slone Deck reported a grant of 5,060 restricted stock units and two tax-withholding dispositions of 487 and 731 common shares. These transactions relate to equity compensation under Core Natural Resources’ Omnibus Performance Incentive Plan.

Was the Core Natural Resources (CNR) insider transaction a market sale of shares?

No, the dispositions were for tax withholding. Shares were withheld by the company to satisfy Slone Deck’s tax liability from vesting restricted stock units, rather than being sold in open-market transactions.

What equity award did CNR grant to Slone Deck in this filing?

Core Natural Resources granted Slone Deck 5,060 restricted stock units. These units vest annually in equal installments over three years, starting on the first anniversary of the grant date, with each unit representing one share of common stock.

How many Core Natural Resources shares does Slone Deck hold after these transactions?

After the reported transactions, Slone Deck directly holds 70,207 shares of Core Natural Resources common stock. This total includes 10,917 unvested restricted stock units that remain subject to vesting conditions.

What is the vesting schedule for Slone Deck’s new CNR restricted stock units?

The 5,060 restricted stock units vest annually in equal installments over three years. Vesting begins on the first anniversary of the grant date, aligning the award with longer-term service and performance at Core Natural Resources.

At what price were the CNR shares withheld for Slone Deck’s tax obligations?

The company withheld 487 and 731 shares of Core Natural Resources common stock at a price of $88.96 per share. These withholdings were used solely to cover Slone Deck’s tax liabilities from vesting restricted stock units.