James A. Brock - 17 Feb 2026 Form 4 Insider Report for Core Natural Resources, Inc. (CNR)

Role
Executive Chair and CEO, Director
Signature
/s/ Rosemary L. Klein, Attorney-in-Fact for James A. Brock
Issuer symbol
CNR
Transactions as of
17 Feb 2026
Net transactions value
-$6,298,813
Form type
4
Filing time
19 Feb 2026, 19:54:44 UTC
Previous filing
14 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Brock James A Executive Chair and CEO, Director 275 TECHNOLOGY DRIVE, SUITE 101, CANONSBURG /s/ Rosemary L. Klein, Attorney-in-Fact for James A. Brock 19 Feb 2026 0001620612
This filing has been restated, see here for the amended filing

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CNR Common stock, par value $0.01 per share Award $0 +21,190 +8.4% $0.000000 274,367 17 Feb 2026 Direct F1
transaction CNR Common stock, par value $0.01 per share Tax liability $5,903,830 -66,365 -20% $88.96 271,407 18 Feb 2026 Direct F2
transaction CNR Common stock, par value $0.01 per share Tax liability $394,982 -4,440 -1.6% $88.96 266,967 18 Feb 2026 Direct F2, F3
holding CNR Common stock, par value $0.01 per share 24,440 17 Feb 2026 Lee Ann Brock Trust
holding CNR Common stock, par value $0.01 per share 140,760 17 Feb 2026 By SLAT-1
holding CNR Common stock, par value $0.01 per share 117,398 17 Feb 2026 By GRAT-1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 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.
F3 Of the 266,967 shares reported, 44,632 are unvested restricted stock units.