Core Natural Resources director granted 1,390 RSUs

Keating Ronald C reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Keating Ronald C reported acquisition or exercise transactions in this Form 4 filing.

Core Natural Resources, Inc. director Ronald C. Keating received a compensation grant of 1,390 restricted stock units under the company’s Omnibus Performance Incentive Plan. These units vest on the first anniversary of the grant date, and each unit represents a right to receive one share of common stock.

Insider Trade Summary

Grant/Award: 1,390 shares

Grant/Award 1 txn

Insider Keating Ronald C

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.01 per share ("Common Stock")	1,390	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.01 per share ("Common Stock") — 1,390 shares (Direct)

Footnotes (2)

1. F1. Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest 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. F2. Of the 1,390 shares reported, 1,390 are unvested restricted stock units.

Key Figures

Restricted stock units granted: 1,390 units Transaction price per unit: $0.0000 per share Total holdings after grant: 1,390 shares-equivalent +1 more

4 metrics

Restricted stock units granted 1,390 units Grant to director Ronald C. Keating on April 30, 2026

Transaction price per unit $0.0000 per share Compensation grant, not an open-market purchase

Total holdings after grant 1,390 shares-equivalent All reported as unvested restricted stock units

Vesting schedule First anniversary of grant date Vesting terms for 1,390 restricted stock units

Key Terms

restricted stock units, Omnibus Performance Incentive Plan, contingent right, unvested restricted stock units

4 terms

restricted stock units financial

"Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Omnibus Performance Incentive Plan financial

"Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan"

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock"

unvested restricted stock units financial

"Of the 1,390 shares reported, 1,390 are unvested restricted stock units"

FAQ

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

What insider transaction did Core Natural Resources (CNR) report for Ronald C. Keating?

Core Natural Resources reported that director Ronald C. Keating received a grant of 1,390 restricted stock units. The award is compensation, not an open-market purchase, and was issued under the company’s Omnibus Performance Incentive Plan at no cash cost per unit.

How many shares did Ronald C. Keating acquire in this Core Natural Resources (CNR) Form 4?

Ronald C. Keating acquired 1,390 restricted stock units, with each unit representing one share of common stock. All 1,390 units are unvested as of the grant date, and his total direct holdings reported after the transaction are 1,390 shares-equivalent.

What are the vesting terms of Ronald C. Keating’s restricted stock units at Core Natural Resources (CNR)?

The 1,390 restricted stock units granted to Ronald C. Keating vest on the first anniversary of the grant date. Until vesting, they remain unvested units representing a contingent right to receive Core Natural Resources common stock on that future vesting date.

Did Ronald C. Keating pay a purchase price for his Core Natural Resources (CNR) stock units?

No cash purchase price was paid for Ronald C. Keating’s grant; the transaction price per share is reported as 0.0000. The 1,390 restricted stock units were issued as a compensation award under the Omnibus Performance Incentive Plan, not through a market transaction.

Are Ronald C. Keating’s Core Natural Resources (CNR) restricted stock units currently vested?

No, all 1,390 restricted stock units reported for Ronald C. Keating are unvested. The Form 4 footnotes state that each unit is unvested and will vest on the first anniversary of the grant date, subject to the plan’s standard conditions.

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

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Accepted by SEC EDGAR 05/01/2026 - 11:10 AM EDT 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^*

Keating Ronald C

(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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

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 ("Common Stock")	04/30/2026		A		1,390(1)	A	$0	1,390(2)	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 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. Of the 1,390 shares reported, 1,390 are unvested restricted stock units.

Remarks:

	/s/ Rosemary L. Klein, Power of Attorney for Ronald C. Keating	05/01/2026
	** 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)