Valli Perera - 17 Feb 2026 Form 4/A - Amendment Insider Report for Core Natural Resources, Inc. (CNR)

Role
Director
Signature
/s/ Rosemary L. Klein, Attorney-in-Fact for Valli Perera
Issuer symbol
CNR
Transactions as of
17 Feb 2026
Net transactions value
$0
Form type
4/A - Amendment
Filing time
24 Feb 2026, 17:15:28 UTC
Date Of Original Report
19 Feb 2026
Previous filing
20 Feb 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Perera Valli Director 275 TECHNOLOGY DRIVE, SUITE 101, CANONSBURG /s/ Rosemary L. Klein, Attorney-in-Fact for Valli Perera 24 Feb 2026 0001970886

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding CNR Common stock, par value $0.01 per share 9,329 17 Feb 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On February 19, 2026, due to immaterial clerical rounding errors, the reporting person filed a Form 4 which inadvertently reported an incorrect total amount of securities directly beneficially owned by the reporting person. The corrected amount of securities beneficially owned by the reporting person is 9,329.