Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Feb 18, 2026
Reporting period
Not applicable
Filed with the SEC
Feb 23, 2026
CEOTax withholding
Context
Classification
tax withholding
Code F — shares delivered to pay exercise price or tax liability
Planned / mechanical clue
Tax mechanics (code F)
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001193125-26-063982
Filed / recorded
Feb 23, 2026, 9:11 PM UTC
Added to OQRO
Oct 6, 2026, 10:35 PM UTC
Parser
form4-xml-v2
Data quality
Verified: identifiers matched exactly
Issuer
Core Natural Resources, Inc.
Issuer CIK
1710366
Ticker
CNR
Reporting person
James A Brock
Relationship
Director, Officer
Officer title
Executive Chair and CEO
Security
Common stock, par value $0.01 per share
Table
Non-derivative (Table I)
Transaction date
Feb 18, 2026
Transaction code
F
Shares / units
2,960
Price per share
$88.96
Acquired / disposed
Disposed (D)
Shares owned after
271,415
Ownership form
Direct
Amendment
Yes (Form 4/A)
Footnotes from the filing
On February 19, 2026, the reporting person filed a Form 4 (the "Original Form 4") which inadvertently reported in the second row of Table I an incorrect amount of shares of common stock withheld to satisfy the reporting person's tax liability due to a clerical error. The corrected amount of securities withheld to satisfy the reporting person's tax liability was 2,960 shares.