Core Natural Resources, Inc. (CNR)
Core Natural Resources, Inc. (CNR) Insider Trading
Directors, officers and holders of more than 10% of CNR report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 113 transactions on file: 1 with code P, 11 with code S and 38 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 30, 2026 | Keating Ronald C | Director | A Award | 1,390 | Not measured | Not measured |
| Apr 30, 2026 | Doheny Edward L II | Director | A Award | 1,390 | Not measured | Not measured |
| Mar 24, 2026 | Brock James A | Executive Chair and CEO | G Gift | 24,440 | Not measured | Not measured |
| Mar 24, 2026 | Brock James A | Executive Chair and CEO | G Gift | 24,440 | Not measured | Not measured |
| Mar 19, 2026 | Klein Rosemary L | SVP, CLO & Corp. Sec. | S Sale | 10,000 | $105.00 | $1,050,000 |
| Mar 19, 2026 | Klein Rosemary L | SVP, CLO & Corp. Sec. | S Sale | 5,000 | $110.62 | $553,100 |
| Mar 18, 2026 | Brock James A | Executive Chair and CEO | S Sale | 40,760 | $101.15 | $4,122,874 |
| Mar 17, 2026 | Rothka John | Chief Accounting Officer | S Sale | 1,000 | $97.66 | $97,660 |
| Mar 10, 2026 | Rothka John | Chief Accounting Officer | S Sale | 3,800 | $91.62 | $348,156 |
| Mar 10, 2026 | NAVARRE RICHARD A | Director | S Sale | 6,000 | $91.70 | $550,200 |
| Feb 18, 2026 | Klein Rosemary L | SVP, CLO & Corp. Sec. | F Tax Payment | 497 | $88.96 | $44,213 |
| Feb 18, 2026 | Thakkar Miteshkumar | President & CFO | F Tax Payment | 1,223 | $88.96 | $108,798 |
| Feb 18, 2026 | Klein Rosemary L | SVP, CLO & Corp. Sec. | F Tax Payment | 746 | $88.96 | $66,364 |
| Feb 18, 2026 | Rothka John | Chief Accounting Officer | F Tax Payment | 79 | $88.96 | $7,028 |
| Feb 18, 2026 | Thakkar Miteshkumar | President & CFO | F Tax Payment | 806 | $88.96 | $71,702 |
| Feb 18, 2026 | Braithwaite Robert J. Jr. | SVP, Marketing & Sales | F Tax Payment | 310 | $88.96 | $27,578 |
| Feb 18, 2026 | Brock James A | Executive Chair and CEO | F Tax Payment | 4,440 | $88.96 | $394,982 |
| Feb 18, 2026 | Slone Deck | SVP, Strategy & Public Policy | F Tax Payment | 731 | $88.96 | $65,030 |
| Feb 18, 2026 | Rothka John | Chief Accounting Officer | F Tax Payment | 97 | $88.96 | $8,629 |
| Feb 18, 2026 | Salvatori Kurt R. | SVP, Chief Admin. Officer | F Tax Payment | 689 | $88.96 | $61,293 |
| Feb 18, 2026 | Salvatori Kurt R. | SVP, Chief Admin. Officer | F Tax Payment | 459 | $88.96 | $40,833 |
| Feb 18, 2026 | Slone Deck | SVP, Strategy & Public Policy | F Tax Payment | 487 | $88.96 | $43,324 |
| Feb 18, 2026 | Braithwaite Robert J. Jr. | SVP, Marketing & Sales | F Tax Payment | 464 | $88.96 | $41,277 |
| Feb 18, 2026 | Schuller George John JR | SVP, Chief Operating Officer | F Tax Payment | 713 | $88.96 | $63,428 |
| Feb 18, 2026 | Brock James A | Executive Chair and CEO | F Tax Payment | 2,960 | $88.96 | $263,322 |
| Feb 18, 2026 | Brock James A | Executive Chair and CEO | F Tax Payment | 66,365 | $88.96 | $5,903,830 |
| Feb 18, 2026 | Schuller George John JR | SVP, Chief Operating Officer | F Tax Payment | 1,069 | $88.96 | $95,098 |
| Feb 17, 2026 | Klein Rosemary L | SVP, CLO & Corp. Sec. | A Award | 5,060 | Not measured | Not measured |
| Feb 17, 2026 | NAVARRE RICHARD A | Director | A Award | 2,200 | Not measured | Not measured |
| Feb 17, 2026 | Braithwaite Robert J. Jr. | SVP, Marketing & Sales | A Award | 4,440 | Not measured | Not measured |
| Feb 17, 2026 | Thakkar Miteshkumar | President & CFO | A Award | 8,730 | Not measured | Not measured |
| Feb 17, 2026 | KRIEGSHAUSER PATRICK A | Director | A Award | 1,610 | Not measured | Not measured |
| Feb 17, 2026 | KOEPPEL HOLLY K | Director | A Award | 1,610 | Not measured | Not measured |
| Feb 17, 2026 | Slone Deck | SVP, Strategy & Public Policy | A Award | 5,060 | Not measured | Not measured |
| Feb 17, 2026 | Brock James A | Executive Chair and CEO | A Award | 21,190 | Not measured | Not measured |
| Feb 17, 2026 | Platt Joseph P JR | Director | A Award | 1,610 | Not measured | Not measured |
| Feb 17, 2026 | Rothka John | Chief Accounting Officer | A Award | 760 | Not measured | Not measured |
| Feb 17, 2026 | Salvatori Kurt R. | SVP, Chief Admin. Officer | A Award | 4,820 | Not measured | Not measured |
| Feb 17, 2026 | Schuller George John JR | SVP, Chief Operating Officer | A Award | 7,530 | Not measured | Not measured |
| Feb 17, 2026 | Perera Valli | Director | A Award | 1,610 | Not measured | Not measured |
| Nov 13, 2025 | Brock James A | Executive Chair and CEO | G Gift | 140,760 | Not measured | Not measured |
| Nov 13, 2025 | Brock James A | Executive Chair and CEO | G Gift | 140,760 | Not measured | Not measured |
| Oct 9, 2025 | Rothka John | Chief Accounting Officer | S Sale | 1,000 | $100.00 | $100,000 |
| Oct 8, 2025 | Rothka John | Chief Accounting Officer | S Sale | 1,000 | $95.00 | $95,000 |
| Oct 3, 2025 | Rothka John | Chief Accounting Officer | S Sale | 2,500 | $90.00 | $225,000 |
| Sep 25, 2025 | NAVARRE RICHARD A | Director | S Sale | 5,000 | $82.20 | $411,000 |
| Sep 17, 2025 | KRIEGSHAUSER PATRICK A | Director | S Sale | 3,043 | $77.07 | $234,524 |
| May 20, 2025 | Brock James A | Executive Chair and CEO | G Gift | 165,200 | Not measured | Not measured |
| May 20, 2025 | Brock James A | Executive Chair and CEO | G Gift | 165,200 | Not measured | Not measured |
| May 9, 2025 | Lang Paul A | Chief Executive Officer | P Purchase | 7,500 | $66.95 | $502,125 |
The full Form 4 history is on the CNR company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.