Key facts
- This page summarizes James A. Brock's Form 4 filing for Core Natural Resources, Inc. (CNR).
- 2 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 25 Mar 2026, 16:35.
James A. Brock - 24 Mar 2026 Form 4 Insider Report for Core Natural Resources, Inc. (CNR)
- Reporting relationship
- Executive Chair and CEO, Director
- Issuer ticker
- CNR
- Reported as of
- 24 Mar 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 25 Mar 2026, 16:35:41 UTC
- Prior SEC filing
- 19 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Rosemary L. Klein, as Attorney-in-Fact for James A. Brock
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
James A. Brock filed Form 4 for Core Natural Resources, Inc. (CNR) on 25 Mar 2026.
Change
- Previous filing in this sequence was filed on 19 Mar 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001620612
Primary reporting owner
Brock James A
- Relationship
- Executive Chair and CEO, Director
- Address
- 275 TECHNOLOGY DRIVE, SUITE 101, CANONSBURG
- Signature
- /s/ Rosemary L. Klein, as Attorney-in-Fact for James A. Brock
- Signature date
- 25 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
CNR
transaction
Common stock, par value $0.01 per share
Gift
- Transaction value
- Shares
- -24,440
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 24 Mar 2026
- Ownership
- By Lee Ann Brock Trust
- Footnotes
- F1
CNR
transaction
Common stock, par value $0.01 per share
Gift
- Transaction value
- Shares
- +24,440
- Change %
- +9.2%
- Price
- $0.000000*
- Shares after
- 291,415
- Date
- 24 Mar 2026
- Ownership
- Direct
- Footnotes
- F2, F3
CNR
holding
Common stock, par value $0.01 per share
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 100,000
- Date
- 24 Mar 2026
- Ownership
- By SLAT-1
CNR
holding
Common stock, par value $0.01 per share
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 117,398
- Date
- 24 Mar 2026
- Ownership
- By GRAT-1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
This disposition was made in connection with a gift under a long-term strategy for estate planning purposes.
Footnote F2
This acquisition was made in connection with a gift under a long-term strategy for estate planning purposes.
Footnote F3
Of the 291,415 shares reported, 44,640 are unvested restricted stock units.