John Rothka, Chief Accounting Officer of Core Natural Resources Inc. ($CNR), sold shares on the open market four times in the last year for a total of $768 thousand. His most recent sale occurred on March 10, 2026. These transactions rank him 5,513th among 11,678 insiders by sale value, below the average of 8.6 million per insider and 6.4 transactions. Rothka made no open market purchases in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 17, 2026 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | S | Common stock, par value $0.01 per share | 1000 | $97.66 | 5,190.0000 | 50,979,544 | 16.16% | 0.00% |
| March 10, 2026 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | S | Common stock, par value $0.01 per share | 3800 | $91.62 | 6,190.0000 | 50,979,544 | 38.04% | 0.01% |
| Feb. 18, 2026 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 79 | $88.96 | 9,990.0000 | 50,979,544 | 0.78% | 0.00% |
| Feb. 17, 2026 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | A | Common stock, par value $0.01 per share | 760 | $0.00 | 10,067.0000 | 50,979,544 | 8.17% | 0.00% |
| Feb. 18, 2026 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 97 | $88.96 | 9,970.0000 | 50,979,544 | 0.96% | 0.00% |
| Oct. 9, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | S | Common stock, par value $0.01 per share | 1000 | $100.00 | 9,307.0000 | 54,016,722 | 9.70% | 0.00% |
| Oct. 8, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | S | Common stock, par value $0.01 per share | 1000 | $95.00 | 10,307.0000 | 54,016,722 | 8.84% | 0.00% |
| Oct. 3, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | S | Common stock, par value $0.01 per share | 2500 | $90.00 | 11,307.0000 | 54,016,722 | 18.11% | 0.00% |
| Feb. 18, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | A | Common stock, par value $0.01 per share | 828 | $0.00 | 13,807.0000 | 54,016,722 | 6.38% | 0.00% |
| Jan. 14, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 849 | $101.95 | 12,979.0000 | 0 | 6.14% | 0.00% |
| Jan. 14, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | A | Common stock, par value $0.01 per share | 492 | $0.00 | 13,600.0000 | 0 | 3.75% | 0.00% |
| Jan. 14, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 140 | $101.95 | 13,460.0000 | 0 | 1.03% | 0.00% |
| Jan. 14, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | A | Common stock, par value $0.01 per share | 515 | $0.00 | 13,975.0000 | 0 | 3.83% | 0.00% |
| Jan. 14, 2025 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 147 | $101.95 | 13,828.0000 | 0 | 1.05% | 0.00% |
| March 7, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | S | Common stock, par value $0.01 per share | 2000 | $94.56 | 13,108.0000 | 0 | 13.24% | 0.00% |
| Jan. 31, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | M | Market Share Units | 2110 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 8, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 243 | $85.78 | 15,108.0000 | 0 | 1.58% | 0.00% |
| Feb. 7, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 114 | $83.58 | 15,351.0000 | 0 | 0.74% | 0.00% |
| Feb. 6, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | A | Common stock, par value $0.01 per share | 1030 | $0.00 | 15,465.0000 | 0 | 7.14% | 0.00% |
| Jan. 31, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | F | Common stock, par value $0.01 per share | 76 | $94.60 | 14,435.0000 | 0 | 0.52% | 0.00% |
| Jan. 31, 2024 | Core Natural Resources, Inc. | $CNR | Rothka John | Chief Accounting Officer | A | Common stock, par value $0.01 per share | 266 | $0.00 | 14,511.0000 | 0 | 1.87% | 0.00% |