Core Natural Resources, Inc. (CNR)
Data as of , from SEC Form 4 filings.
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About Core Natural Resources, Inc. (CNR)
The SEC lists Core Natural Resources, Inc. under CIK 0001710366, in silver ores. It is grouped with Materials companies on this site.
CNR Form 4 activity by transaction type, last 90 days
No Form 4 activity for CNR in the last 90 days.
CNR insider transactions (Form 4)
1740 Form 4 filings on record, the earliest from Mar 31, 2025, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Joseph P. Platt Jr. | Grant or award | Common stock, par value $0.01 per share | 1,610 footnote F1 | $0.00 | - | |
| ||||||
| James A. Brock - Officer | Grant or award | Common stock, par value $0.01 per share | 21,190 footnote F1 | $0.00 | - | |
| James A. Brock - Officer | Tax withholding / forfeiture | Common stock, par value $0.01 per share | 66,365 footnote F2 | $88.96 | $5.90M | |
| James A. Brock - Officer | Tax withholding / forfeiture | Common stock, par value $0.01 per share | 4,440 footnote F2 | $88.96 | $395K | |
| ||||||
| Deck Slone - Officer | Grant or award | Common stock, par value $0.01 per share | 5,060 footnote F1 | $0.00 | - | |
| Deck Slone - Officer | Tax withholding / forfeiture | Common stock, par value $0.01 per share | 487 footnote F2 | $88.96 | $43K | |
| Deck Slone - Officer | Tax withholding / forfeiture | Common stock, par value $0.01 per share | 731 footnote F2 | $88.96 | $65K | |
| ||||||
| Holly K. Koeppel | Grant or award | Common stock, par value $0.01 per share | 1,610 footnote F1 | $0.00 | - | |
| ||||||
| James A. Brock - Officer | Gift | Common stock, par value $0.01 per share | 140,760 | $0.00 | - | |
| James A. Brock - Officer | Gift | Common stock, par value $0.01 per share | 140,760 | $0.00 | - | |
| John Rothka - Officer | Open-market sale | Common stock, par value $0.01 per share | 1,000 | $95.00 | $95K | |
| John Rothka - Officer | Open-market sale | Common stock, par value $0.01 per share | 1,000 | $100.00 | $100K | |
| John Rothka - Officer | Open-market sale | Common stock, par value $0.01 per share | 2,500 | $90.00 | $225K | |
| Richard A. Navarre | Open-market sale | Common stock, par value $0.01 per share | 5,000 | $82.20 | $411K | |
| Patrick A. Kriegshauser | Open-market sale | Common stock, par value $0.01 per share | 3,043 | $77.07 | $235K | |
| Holly K. Koeppel | Open-market sale | Common stock, par value $0.01 per share | 4,771 | $74.97 | $358K | |
| Holly K. Koeppel | Open-market sale | Common stock, par value $0.01 per share | 4,044 | $75.68 | $306K | |
Item 5.02, 7.01, 9.01
Item 2.02, 7.01, 9.01
Item 7.01, 9.01
Item 1.04
CNR insider trading FAQ
What is the latest insider trade for CNR?
Core Natural Resources, Inc. (CNR) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-05-01. The full record for CNR runs to 40 Form 4 filings, the earliest from 2025-03-31. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CNR stock?
No insider purchases of CNR were filed in the last 90 days.
How many insiders are selling CNR stock?
No insider sales of CNR were filed in the last 90 days. 13 sales are on record for this company.
Where can I see CNR SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CNR Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Materials companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Ronald C. Keating view on EDGAR
- - Edward L. Doheny II view on EDGAR
- - James A. Brock view on EDGAR
- - Rosemary L. Klein view on EDGAR
- - James A. Brock view on EDGAR
- - John Rothka view on EDGAR
- - John Rothka view on EDGAR
- - Richard A. Navarre view on EDGAR
- - Holly K. Koeppel view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Materials
- Where CNR's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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