NYSE · CIK 0001710366
CNR Core Natural Resources, Inc.
Insider trading from SEC Form 4. Last filing Mar 25, 2026. Close $88.46 on Oct 9, 2026, +17% from the 52-week low and -22% from the high.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
15
with a Form 4 at this company
Price and insider trades, last year
CNROct 9, 2026 · close 88.46
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Core Natural Resources, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 60Notable | Rosemary L Klein SVP, CLO & Corp. Sec. sell | $1.6M 15,000 shares | -22% | +69% from low0% from high | |
| 75Notable | James A Brock Executive Chair and CEO sell | $4.1M 40,760 shares | -29% | +60% from low0% from high | |
| 45Moderate | John Rothka Chief Accounting Officer sell | $98k 1,000 shares | -16% | +56% from low-3% from high | |
| 54Moderate | Richard A Navarre director sell | $550k 6,000 shares | -25% | +44% from low-10% from high | |
| 55Moderate | John Rothka Chief Accounting Officer sell | $348k 3,800 shares | -38% | +44% from low-10% from high | |
| 20Weak | John Rothka Chief Accounting Officer sell | $195k 2,000 shares | -18% | - | |
| 20Weak | John Rothka Chief Accounting Officer sell | $225k 2,500 shares | -18% | - | |
| 51Moderate | Richard A Navarre director sell | $411k 5,000 shares | -19% | - | |
| 41Moderate | Patrick A Kriegshauser director sell | $235k 3,043 shares | -12% | - | |
| 43Moderate | Paul A Lang Chief Executive Officer buy | $502k 7,500 shares | +2% | - | |
| 45Moderate | Holly K Koeppel director sell | $664k 8,815 shares | -40% | - |
Transactions
The last 100 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 24, 2026 | James A Brock Executive Chair and CEO | GGift Common stock, par value $0.01 per shareindirect: By Lee Ann Brock Trust | -24,440 | $0.00 | $0 | 0 | Mar 25, 2026 |
| Mar 24, 2026 | James A Brock Executive Chair and CEO | GGift Common stock, par value $0.01 per share | +24,440 | $0.00 | $0 | 291,415 | Mar 25, 2026 |
| Mar 19, 2026 | Rosemary L Klein SVP, CLO & Corp. Sec. | SOpen-market sale Common stock, par value $0.01 per share | -10,000 | $105.00 | $1.1M | 58,679 | Mar 20, 2026 |
| Mar 19, 2026 | Rosemary L Klein SVP, CLO & Corp. Sec. | SOpen-market sale Common stock, par value $0.01 per share | -5,000 | $110.62 | $553k | 53,679 | Mar 20, 2026 |
| Mar 18, 2026 | James A Brock Executive Chair and CEO | SOpen-market sale Common stock, par value $0.01 per shareindirect: By SLAT-1 | -40,760 | $101.15 | $4.1M | 100,000 | Mar 19, 2026 |
| Mar 17, 2026 | John Rothka Chief Accounting Officer | SOpen-market sale Common stock, par value $0.01 per share | -1,000 | $97.66 | $98k | 5,190 | Mar 19, 2026 |
| Mar 10, 2026 | Richard A Navarre director | SOpen-market sale Common stock, par value $0.01 per share | -6,000 | $91.70 | $550k | 18,034 | Mar 11, 2026 |
| Mar 10, 2026 | John Rothka Chief Accounting Officer | SOpen-market sale Common stock, par value $0.01 per share | -3,800 | $91.62 | $348k | 6,190 | Mar 11, 2026 |
| Feb 17, 2026 | Rosemary L Klein SVP, CLO & Corp. Sec. | AGrant or award Common stock, par value $0.01 per share | +5,060 | $0.00 | $0 | 69,910 | Feb 19, 2026 |
| Feb 17, 2026 | Joseph P Platt JR director | AGrant or award Common stock, par value $0.01 per share | +1,610 | $0.00 | $0 | 40,648 | Feb 19, 2026 |
| Feb 17, 2026 | Miteshkumar Thakkar President & CFO | AGrant or award Common stock, par value $0.01 per share | +8,730 | $0.00 | $0 | 63,686 | Feb 19, 2026 |
| Feb 17, 2026 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | AGrant or award Common stock, par value $0.01 per share | +4,440 | $0.00 | $0 | 17,064 | Feb 19, 2026 |
| Feb 17, 2026 | James A Brock Executive Chair and CEO | AGrant or award Common stock, par value $0.01 per share | +21,190 | $0.00 | $0 | 274,367 | Feb 19, 2026 |
| Feb 17, 2026 | Richard A Navarre director | AGrant or award Common stock, par value $0.01 per share | +2,200 | $0.00 | $0 | 24,030 | Feb 19, 2026 |
| Feb 17, 2026 | Valli Perera director | AGrant or award Common stock, par value $0.01 per share | +1,610 | $0.00 | $0 | 9,317 | Feb 19, 2026 |
| Feb 17, 2026 | John Rothka Chief Accounting Officer | AGrant or award Common stock, par value $0.01 per share | +760 | $0.00 | $0 | 10,067 | Feb 19, 2026 |
| Feb 17, 2026 | Holly K Koeppel director | AGrant or award Common stock, par value $0.01 per share | +1,610 | $0.00 | $0 | 14,958 | Feb 19, 2026 |
| Feb 17, 2026 | Deck Slone SVP, Strategy & Public Policy | AGrant or award Common stock, par value $0.01 per share | +5,060 | $0.00 | $0 | 71,425 | Feb 19, 2026 |
| Feb 17, 2026 | George John Schuller JR SVP, Chief Operating Officer | AGrant or award Common stock, par value $0.01 per share | +7,530 | $0.00 | $0 | 29,120 | Feb 19, 2026 |
| Feb 17, 2026 | Kurt R. Salvatori SVP, Chief Admin. Officer | AGrant or award Common stock, par value $0.01 per share | +4,820 | $0.00 | $0 | 25,733 | Feb 19, 2026 |
| Feb 17, 2026 | Patrick A Kriegshauser director | AGrant or award Common stock, par value $0.01 per share | +1,610 | $0.00 | $0 | 24,958 | Feb 19, 2026 |
| Feb 18, 2026 | George John Schuller JR SVP, Chief Operating Officer | FTax withholding Common stock, par value $0.01 per share | -713 | $88.96 | $63k | 28,407 | Feb 19, 2026 |
| Feb 18, 2026 | Kurt R. Salvatori SVP, Chief Admin. Officer | FTax withholding Common stock, par value $0.01 per share | -459 | $88.96 | $41k | 25,274 | Feb 19, 2026 |
| Feb 18, 2026 | Rosemary L Klein SVP, CLO & Corp. Sec. | FTax withholding Common stock, par value $0.01 per share | -497 | $88.96 | $44k | 69,413 | Feb 19, 2026 |
| Feb 18, 2026 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | FTax withholding Common stock, par value $0.01 per share | -310 | $88.96 | $28k | 16,754 | Feb 19, 2026 |
| Feb 18, 2026 | Miteshkumar Thakkar President & CFO | FTax withholding Common stock, par value $0.01 per share | -806 | $88.96 | $72k | 62,880 | Feb 19, 2026 |
| Feb 18, 2026 | Deck Slone SVP, Strategy & Public Policy | FTax withholding Common stock, par value $0.01 per share | -487 | $88.96 | $43k | 70,938 | Feb 19, 2026 |
| Feb 18, 2026 | James A Brock Executive Chair and CEO | FTax withholding Common stock, par value $0.01 per share | -66,365 | $88.96 | $5.9M | 271,407 | Feb 19, 2026 |
| Feb 18, 2026 | John Rothka Chief Accounting Officer | FTax withholding Common stock, par value $0.01 per share | -97 | $88.96 | $8,629 | 9,970 | Feb 19, 2026 |
| Feb 18, 2026 | Kurt R. Salvatori SVP, Chief Admin. Officer | FTax withholding Common stock, par value $0.01 per share | -689 | $88.96 | $61k | 24,585 | Feb 19, 2026 |
| Feb 18, 2026 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | FTax withholding Common stock, par value $0.01 per share | -464 | $88.96 | $41k | 16,290 | Feb 19, 2026 |
| Feb 18, 2026 | Rosemary L Klein SVP, CLO & Corp. Sec. | FTax withholding Common stock, par value $0.01 per share | -746 | $88.96 | $66k | 68,667 | Feb 19, 2026 |
| Feb 18, 2026 | James A Brock Executive Chair and CEO | FTax withholding Common stock, par value $0.01 per share | -4,440 | $88.96 | $395k | 266,967 | Feb 19, 2026 |
| Feb 18, 2026 | Miteshkumar Thakkar President & CFO | FTax withholding Common stock, par value $0.01 per share | -1,223 | $88.96 | $109k | 61,657 | Feb 19, 2026 |
| Feb 18, 2026 | George John Schuller JR SVP, Chief Operating Officer | FTax withholding Common stock, par value $0.01 per share | -1,069 | $88.96 | $95k | 27,338 | Feb 19, 2026 |
| Feb 18, 2026 | Deck Slone SVP, Strategy & Public Policy | FTax withholding Common stock, par value $0.01 per share | -731 | $88.96 | $65k | 70,207 | Feb 19, 2026 |
| Nov 13, 2025 | James A Brock Executive Chair and CEO | GGift Common stock, par value $0.01 per shareindirect: Lee Ann Brock Trust | -140,760 | $0.00 | $0 | 24,440 | Nov 14, 2025 |
| Nov 13, 2025 | James A Brock Executive Chair and CEO | GGift Common stock, par value $0.01 per shareindirect: By SLAT-1 | +140,760 | $0.00 | $0 | 140,760 | Nov 14, 2025 |
| Oct 8, 2025 | John Rothka Chief Accounting Officer | SOpen-market sale Common stock, par value $0.01 per share10b5-1 | -1,000 | $95.00 | $95k | 10,307 | Oct 10, 2025 |
| Oct 9, 2025 | John Rothka Chief Accounting Officer | SOpen-market sale Common stock, par value $0.01 per share10b5-1 | -1,000 | $100.00 | $100k | 9,307 | Oct 10, 2025 |
| Oct 3, 2025 | John Rothka Chief Accounting Officer | SOpen-market sale Common stock, par value $0.01 per share10b5-1 | -2,500 | $90.00 | $225k | 11,307 | Oct 6, 2025 |
| Sep 25, 2025 | Richard A Navarre director | SOpen-market sale Common stock, par value $0.01 per share | -5,000 | $82.20 | $411k | 21,830 | Sep 26, 2025 |
| Sep 17, 2025 | Patrick A Kriegshauser director | SOpen-market sale Common stock, par value $0.01 per share | -3,043 | $77.07 | $235k | 23,348 | Sep 18, 2025 |
| May 20, 2025 | James A Brock Executive Chair | GGift Common stock, par value $0.01 per share | -165,200 | $0.00 | $0 | 370,575 | May 22, 2025 |
| May 20, 2025 | James A Brock Executive Chair | GGift Common stock, par value $0.01 per shareindirect: By Lee Ann Brock Trust | +165,200 | $0.00 | $0 | 165,200 | May 22, 2025 |
| May 9, 2025 | Paul A Lang Chief Executive Officer | POpen-market purchase Common stock, par value $0.01 per share | +7,500 | $66.95 | $502k | 341,062 | May 12, 2025 |
| Mar 31, 2025 | Holly K Koeppel director | SOpen-market sale Common stock, par value $0.01 per share | -4,771 | $74.97 | $358k | 17,392 | Apr 2, 2025 |
| Mar 31, 2025 | Holly K Koeppel director | SOpen-market sale Common stock, par value $0.01 per share | -4,044 | $75.68 | $306k | 13,348 | Apr 2, 2025 |
| Feb 18, 2025 | Cassandra Chia-Wei Pan director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 6,033 | Feb 20, 2025 |
| Feb 18, 2025 | Patrick A Kriegshauser director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 24,717 | Feb 20, 2025 |
| Feb 18, 2025 | Holly K Koeppel director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 20,489 | Feb 20, 2025 |
| Feb 18, 2025 | Valli Perera director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 6,033 | Feb 20, 2025 |
| Feb 18, 2025 | Richard A Navarre director | AGrant or award Common stock, par value $0.01 per share | +2,288 | $0.00 | $0 | 24,542 | Feb 20, 2025 |
| Feb 18, 2025 | Miteshkumar Thakkar President & CFO | AGrant or award Common stock, par value $0.01 per share | +8,478 | $0.00 | $0 | 46,478 | Feb 20, 2025 |
| Feb 18, 2025 | Paul A Lang Chief Executive Officer | AGrant or award Common stock, par value $0.01 per share | +20,096 | $0.00 | $0 | 313,466 | Feb 20, 2025 |
| Feb 18, 2025 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | AGrant or award Common stock, par value $0.01 per share | +3,202 | $0.00 | $0 | 9,422 | Feb 20, 2025 |
| Feb 18, 2025 | James A Brock Executive Chair | AGrant or award Common stock, par value $0.01 per share | +20,096 | $0.00 | $0 | 515,679 | Feb 20, 2025 |
| Feb 18, 2025 | Joseph P Platt JR director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 37,364 | Feb 20, 2025 |
| Feb 18, 2025 | Rosemary L Klein SVP, CLO & Corp. Sec. | AGrant or award Common stock, par value $0.01 per share | +5,124 | $0.00 | $0 | 59,726 | Feb 20, 2025 |
| Feb 18, 2025 | George John Schuller JR SVP, Chief Operating Officer | AGrant or award Common stock, par value $0.01 per share | +7,497 | $0.00 | $0 | 14,093 | Feb 20, 2025 |
| Feb 18, 2025 | Deck Slone SVP, Strategy & Public Policy | AGrant or award Common stock, par value $0.01 per share | +5,024 | $0.00 | $0 | 61,341 | Feb 20, 2025 |
| Feb 18, 2025 | John Rothka Chief Accounting Officer | AGrant or award Common stock, par value $0.01 per share | +828 | $0.00 | $0 | 13,807 | Feb 20, 2025 |
| Feb 18, 2025 | Kurt R. Salvatori SVP, Chief Admin. Officer | AGrant or award Common stock, par value $0.01 per share | +4,823 | $0.00 | $0 | 16,090 | Feb 20, 2025 |
| Feb 18, 2025 | Cassandra Chia-Wei Pan director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 7,707 | Feb 20, 2025 |
| Feb 18, 2025 | Patrick A Kriegshauser director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 26,391 | Feb 20, 2025 |
| Feb 18, 2025 | Holly K Koeppel director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 22,163 | Feb 20, 2025 |
| Feb 18, 2025 | Valli Perera director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 7,707 | Feb 20, 2025 |
| Feb 18, 2025 | Richard A Navarre director | AGrant or award Common stock, par value $0.01 per share | +2,288 | $0.00 | $0 | 26,830 | Feb 20, 2025 |
| Feb 18, 2025 | Miteshkumar Thakkar President & CFO | AGrant or award Common stock, par value $0.01 per share | +8,478 | $0.00 | $0 | 54,956 | Feb 20, 2025 |
| Feb 18, 2025 | Paul A Lang Chief Executive Officer | AGrant or award Common stock, par value $0.01 per share | +20,096 | $0.00 | $0 | 333,562 | Feb 20, 2025 |
| Feb 18, 2025 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | AGrant or award Common stock, par value $0.01 per share | +3,202 | $0.00 | $0 | 12,624 | Feb 20, 2025 |
| Feb 18, 2025 | James A Brock Executive Chair | AGrant or award Common stock, par value $0.01 per share | +20,096 | $0.00 | $0 | 535,775 | Feb 20, 2025 |
| Feb 18, 2025 | Joseph P Platt JR director | AGrant or award Common stock, par value $0.01 per share | +1,674 | $0.00 | $0 | 39,038 | Feb 20, 2025 |
| Feb 18, 2025 | Rosemary L Klein SVP, CLO & Corp. Sec. | AGrant or award Common stock, par value $0.01 per share | +5,124 | $0.00 | $0 | 64,850 | Feb 20, 2025 |
| Feb 18, 2025 | George John Schuller JR SVP, Chief Operating Officer | AGrant or award Common stock, par value $0.01 per share | +7,497 | $0.00 | $0 | 21,590 | Feb 20, 2025 |
| Feb 18, 2025 | Deck Slone SVP, Strategy & Public Policy | AGrant or award Common stock, par value $0.01 per share | +5,024 | $0.00 | $0 | 66,365 | Feb 20, 2025 |
| Feb 18, 2025 | Kurt R. Salvatori SVP, Chief Admin. Officer | AGrant or award Common stock, par value $0.01 per share | +4,823 | $0.00 | $0 | 20,913 | Feb 20, 2025 |
| Jan 14, 2025 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | AGrant or award Common stock, par value $0.01 per share | +1,105 | $0.00 | $0 | 8,164 | Jan 16, 2025 |
| Jan 14, 2025 | Rosemary L Klein SVP, CLO & Corp. Sec. | AGrant or award Common stock, par value $0.01 per share | +54,602 | $0.00 | $0 | 54,602 | Jan 16, 2025 |
| Jan 14, 2025 | Paul A Lang Chief Executive Officer | AGrant or award Common stock, par value $0.01 per share | +293,370 | $0.00 | $0 | 293,370 | Jan 16, 2025 |
| Jan 14, 2025 | James A Brock Executive Chair | AGrant or award Common stock, par value $0.01 per share | +13,152 | $0.00 | $0 | 526,941 | Jan 16, 2025 |
| Jan 14, 2025 | Kurt R. Salvatori SVP, Chief Admin. Officer | AGrant or award Common stock, par value $0.01 per share | +1,999 | $0.00 | $0 | 15,508 | Jan 16, 2025 |
| Jan 14, 2025 | Holly K Koeppel director | AGrant or award Common stock, par value $0.01 per share | +18,815 | $0.00 | $0 | 18,815 | Jan 16, 2025 |
| Jan 14, 2025 | Deck Slone SVP, Strategy & Public Policy | AGrant or award Common stock, par value $0.01 per share | +56,317 | $0.00 | $0 | 56,317 | Jan 16, 2025 |
| Jan 14, 2025 | Patrick A Kriegshauser director | AGrant or award Common stock, par value $0.01 per share | +23,043 | $0.00 | $0 | 23,043 | Jan 16, 2025 |
| Jan 14, 2025 | John Rothka Chief Accounting Officer | AGrant or award Common stock, par value $0.01 per share | +492 | $0.00 | $0 | 13,600 | Jan 16, 2025 |
| Jan 14, 2025 | Miteshkumar Thakkar President & CFO | AGrant or award Common stock, par value $0.01 per share | +3,946 | $0.00 | $0 | 45,934 | Jan 16, 2025 |
| Jan 14, 2025 | Richard A Navarre director | AGrant or award Common stock, par value $0.01 per share | +22,254 | $0.00 | $0 | 22,254 | Jan 16, 2025 |
| Jan 14, 2025 | George John Schuller JR SVP, Chief Operating Officer | AGrant or award Common stock, par value $0.01 per share | +6,596 | $0.00 | $0 | 6,596 | Jan 16, 2025 |
| Jan 14, 2025 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | FTax withholding Common stock, par value $0.01 per share | -480 | $101.95 | $49k | 7,684 | Jan 16, 2025 |
| Jan 14, 2025 | James A Brock Executive Chair | FTax withholding Common stock, par value $0.01 per share | -6,031 | $101.95 | $615k | 520,910 | Jan 16, 2025 |
| Jan 14, 2025 | John Rothka Chief Accounting Officer | FTax withholding Common stock, par value $0.01 per share | -140 | $101.95 | $14k | 13,460 | Jan 16, 2025 |
| Jan 14, 2025 | Kurt R. Salvatori SVP, Chief Admin. Officer | FTax withholding Common stock, par value $0.01 per share | -868 | $101.95 | $88k | 14,640 | Jan 16, 2025 |
| Jan 14, 2025 | Miteshkumar Thakkar President & CFO | FTax withholding Common stock, par value $0.01 per share | -1,714 | $101.95 | $175k | 44,220 | Jan 16, 2025 |
| Jan 14, 2025 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | AGrant or award Common stock, par value $0.01 per share | +1,210 | $0.00 | $0 | 8,894 | Jan 16, 2025 |
| Jan 14, 2025 | James A Brock Executive Chair | AGrant or award Common stock, par value $0.01 per share | +11,532 | $0.00 | $0 | 532,442 | Jan 16, 2025 |
| Jan 14, 2025 | John Rothka Chief Accounting Officer | AGrant or award Common stock, par value $0.01 per share | +515 | $0.00 | $0 | 13,975 | Jan 16, 2025 |
| Jan 14, 2025 | Kurt R. Salvatori SVP, Chief Admin. Officer | AGrant or award Common stock, par value $0.01 per share | +2,164 | $0.00 | $0 | 16,804 | Jan 16, 2025 |
| Jan 14, 2025 | Miteshkumar Thakkar President & CFO | AGrant or award Common stock, par value $0.01 per share | +4,685 | $0.00 | $0 | 48,905 | Jan 16, 2025 |
| Jan 14, 2025 | Robert J. Braithwaite Jr. SVP, Marketing & Sales | FTax withholding Common stock, par value $0.01 per share | -526 | $101.95 | $54k | 8,368 | Jan 16, 2025 |
Insiders
Everyone who has filed a Form 4 here.
- Robert J. Braithwaite Jr.SVP, Marketing & Sales
- James A BrockExecutive Chair and CEO
- Holly K Koeppeldirector
- Patrick A Kriegshauserdirector
- Rosemary L KleinSVP, CLO & Corp. Sec.
- Paul A LangChief Executive Officer
- Richard A Navarredirector
- Cassandra Chia-Wei Pandirector
- Valli Pereradirector
- Joseph P Platt JRdirector
- John RothkaChief Accounting Officer
- Kurt R. SalvatoriSVP, Chief Admin. Officer
- George John Schuller JRSVP, Chief Operating Officer
- Deck SloneSVP, Strategy & Public Policy
- Miteshkumar ThakkarPresident & CFO
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.