Core Natural Resources, Inc CNR

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Core Natural Resources, Inc. Common Stock · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 81.71 → 87.48 · 7.1%
113.23091.29569.360 1 2,3 4 5,6 7 8 9 10 11 12,13 14 15 16,17 18 19 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 23 Jul 2025 — 24 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
No data yet
84.5600 87.8500 85.0400 87.4800 473,516
83.1900 86.4800 83.1900 84.2800 393,100
83.1700 84.0600 82.6200 83.9600 435,300
Weekend
Weekend
84.0200 84.1900 82.1800 83.0200 408,700
85.8300 87.1100 83.4650 83.5900 462,800
86.6400 87.6000 85.1600 86.2100 377,900
84.9800 86.6800 84.6950 86.4700 471,100
83.1000 84.4300 82.0500 83.8500 479,900
Weekend
Weekend
81.1400 82.0500 80.6550 81.8700 359,900
80.1100 81.3400 79.6750 80.9900 417,400
79.7100 81.7600 79.6000 80.5400 614,500
81.3700 81.3700 77.5200 79.1600 539,500
80.4300 81.6800 80.0150 80.8300 520,000
Weekend
Weekend
No trading
78.6300 81.3000 78.3350 79.3400 544,800
80.8000 81.8400 77.5250 77.6900 641,900
78.9000 80.7800 78.1000 80.0200 558,900
80.7900 81.9000 78.1200 79.1200 1,016,500
Weekend
Weekend
81.6000 83.3630 80.6450 81.7700 1,374,700
80.3100 82.6600 79.7000 82.1900 556,500
80.6100 81.8800 80.1100 80.8300 840,800
81.6900 83.1700 80.8400 82.2500 611,800
83.5700 83.7500 80.7240 82.1300 765,200
Weekend
Weekend
No trading
86.0800 86.8000 83.0500 83.5700 1,462,800
85.5000 88.5000 85.0390 86.6000 519,100
86.8900 88.7540 85.0500 85.7800 839,000
89.0300 89.7100 87.3700 87.7300 903,100
Weekend
Weekend
89.0600 93.3000 89.0600 92.1700 546,000
92.3500 92.6300 89.5250 90.0100 593,600
92.3800 93.6400 90.4250 91.2800 745,200
92.8500 93.4900 90.0700 91.2700 682,000
95.1600 96.2550 92.5300 93.2200 495,800
Weekend
Weekend
97.8200 98.5000 92.5500 93.4400 485,100
19 · 8-K After-hours · 16:48 ET 8-K ↗
96.3500 99.7900 95.9550 98.9100 618,300
94.0100 97.0750 92.9050 96.4300 904,300
92.1300 95.4200 92.1300 94.5700 442,800
89.6400 95.1100 89.5750 93.1700 940,700
Weekend
Weekend
93.0500 93.5000 87.5000 88.4400 742,700
91.3900 94.1400 90.3500 93.9500 766,200
86.6500 90.8500 85.6300 90.2900 619,300
86.4600 89.8900 86.0000 88.1700 742,300
No trading
Weekend
Weekend
84.2700 85.3200 83.2600 84.0700 747,700
83.7000 84.9100 82.4900 84.0000 526,800
84.9800 85.1000 82.5200 83.0600 652,800
18 · 8-K After-hours · 16:02 ET 8-K ↗
84.1600 84.9700 82.9000 83.8300 508,500
82.6000 84.5150 81.7600 83.8700 739,100
Weekend
Weekend
84.0700 85.8300 82.0100 82.7700 832,000
82.4100 84.4900 80.5800 84.0800 653,900
84.9700 85.5000 82.3900 82.4100 987,300
86.1600 87.6210 84.8580 85.8900 565,600
85.5000 87.7600 85.5000 86.0700 566,800
Weekend
Weekend
88.5600 88.7500 84.8600 84.9100 737,400
84.5100 90.5400 84.5100 88.5600 1,115,000
17 · 10-Q Pre-market · 07:00 ET 10-Q ↗ 16 · 8-K Pre-market · 06:58 ET 8-K ↗
86.0800 88.8700 85.0600 87.7700 946,500
86.8400 89.5000 86.3900 88.3800 810,200
15 · 8-K After-hours · 16:33 ET 8-K ↗
87.6900 89.4300 86.5150 88.1600 887,000
Weekend
Weekend
87.8500 88.3000 83.5500 87.0200 922,000
14 · 8-K After-hours · 17:06 ET 8-K ↗
90.3100 92.3100 87.5300 89.7400 674,000
89.8000 92.2200 89.8000 91.5700 686,600
89.7200 89.9500 88.2100 89.3700 436,900
85.9800 88.6000 85.9800 87.9800 640,100
Weekend
Weekend
86.4200 87.1700 84.8500 85.8000 571,600
89.9000 91.8200 86.6150 87.3800 832,200
89.5600 91.6300 88.9800 89.5800 853,500
85.9500 89.9800 85.9250 88.6500 1,131,500
86.0400 86.9100 84.7300 85.3400 708,000
Weekend
Weekend
86.3700 86.5000 83.0000 85.9700 1,361,800
89.5400 91.5400 88.9800 89.7100 748,400
86.2900 90.1400 86.2500 89.3100 936,900
89.0900 89.2500 85.8800 87.6000 1,033,400
91.8800 92.7300 88.8450 89.7000 846,200
Weekend
Weekend
89.5900 92.3800 89.2000 91.2000 685,900
94.5100 96.0000 87.1000 88.2300 1,486,400
95.3150 95.3150 90.3200 94.6100 1,376,300
104.4200 106.2900 99.2000 99.9300 701,100
103.6700 105.0000 101.0100 104.0500 441,800
Weekend
Weekend
No trading
103.5500 105.8800 102.0000 104.2500 580,100
104.2500 105.9200 101.0600 101.3900 913,300
109.6700 111.4300 102.6600 104.7300 1,745,700
114.8000 114.8000 109.0900 110.1800 1,225,700
Weekend
Weekend
110.6000 113.5000 109.7800 113.2300 1,087,300
110.4100 112.4100 108.5600 108.6700 773,200
108.2100 110.7600 107.6300 110.5700 669,900
105.7200 112.3900 104.5000 109.6800 1,429,200
105.4600 105.7800 100.5200 103.1500 1,599,000
Weekend
Weekend
107.1500 108.6700 103.6400 107.1700 2,474,200
102.5400 113.5650 101.5400 107.1000 2,196,200
98.0000 102.7400 96.8060 101.5400 1,167,100
97.7500 99.1300 96.5850 98.7800 765,000
13 · DEFA14A After market open · 10:09 ET DEFA14A ↗ 12 · DEF 14A After market open · 10:08 ET DEF 14A ↗
98.9300 100.0000 97.0000 97.6300 1,077,700
Weekend
Weekend
100.0000 100.5000 96.7450 98.8900 1,157,900
96.2800 100.1900 95.8000 100.0400 1,360,300
90.6700 95.9400 89.5000 95.8000 725,200
90.1000 93.5400 88.1900 91.3500 1,090,200
85.1500 91.9500 85.1500 90.0200 1,575,800
Weekend
Weekend
87.8100 90.7410 86.5100 86.9000 861,600
93.1000 93.1000 87.3790 88.9200 1,061,700
92.0700 95.7000 90.4500 93.7700 1,027,500
87.2500 94.9900 86.0000 92.0100 1,862,100
83.0800 87.3000 83.0800 86.9900 1,323,900
Weekend
Weekend
11 · 10-K/A After-hours · 16:23 ET 10-K/A ↗
84.1200 84.1200 81.8300 82.0800 1,028,700
85.5900 86.0000 83.5000 85.1400 567,900
89.1900 89.1900 85.8600 86.8400 513,400
86.7600 89.1250 86.2500 88.8300 660,600
88.9200 89.0000 86.3500 87.0300 604,800
Weekend
Weekend
89.3400 90.1200 86.6800 87.9400 838,500
88.0800 90.4400 87.1800 89.9800 684,500
86.7550 89.0900 86.0050 88.9600 698,300
10 · 10-K After-hours · 17:03 ET 10-K ↗
89.8500 91.4100 85.4400 86.6100 742,600
No trading
Weekend
Weekend
89.6100 91.6100 88.3600 91.5100 961,000
90.0850 95.8600 88.0800 90.0500 970,400
9 · 8-K Pre-market · 07:01 ET 8-K ↗
92.9300 93.7400 89.2200 92.6700 1,114,600
94.9400 96.0000 90.7800 91.0600 615,800
91.9600 95.6800 90.8000 94.4500 727,000
Weekend
Weekend
88.3100 94.2650 87.8980 92.2400 713,800
90.5700 91.2000 86.2500 87.0600 702,900
93.0000 94.3700 88.7600 90.4200 1,003,400
93.0000 93.1800 89.5800 90.7600 638,400
94.0300 95.7500 89.5400 90.0100 963,800
Weekend
Weekend
94.3500 97.0000 92.6700 95.3800 712,100
94.6300 95.9700 91.2000 95.8600 1,002,100
97.7800 98.7400 92.3500 93.9100 695,700
95.6400 97.7250 95.0000 96.9100 395,500
100.0000 100.6500 95.5400 95.6300 565,200
Weekend
Weekend
101.0700 101.5500 98.6100 99.2100 589,100
102.5000 103.5000 100.3300 100.7500 646,500
97.5000 101.4400 96.0000 101.4400 869,300
97.5000 98.0800 95.0200 96.6300 835,700
No trading
Weekend
Weekend
97.5900 101.9600 97.0800 97.1100 678,100
96.8200 99.9000 96.3900 98.0200 725,600
98.0200 98.5500 95.4700 97.7100 656,900
97.7500 98.4000 95.1700 96.7900 582,600
8 · 8-K After-hours · 17:28 ET 8-K ↗
97.1000 99.5100 96.7040 97.7500 665,800
Weekend
Weekend
94.0000 98.1000 93.6110 96.3800 1,016,900
90.4700 94.8500 90.1300 93.9700 700,900
90.0000 92.1100 88.4300 91.8900 676,700
87.6700 94.2600 87.6700 91.2300 816,500
89.8900 90.8000 86.4000 88.0300 822,000
Weekend
Weekend
89.2800 90.3250 88.2150 89.8900 323,000
No trading
88.3600 89.0150 87.1700 88.5100 585,100
90.8000 90.8000 88.3500 88.6300 460,600
87.1000 89.9000 87.0100 89.5500 490,300
Weekend
Weekend
89.5300 89.5300 87.5200 88.5800 277,900
No trading
88.7500 90.2300 88.6400 89.1100 275,800
88.0400 90.4400 87.5100 89.3300 461,800
88.8100 91.0000 87.6400 88.5100 594,800
Weekend
Weekend
88.5100 92.0700 87.5250 88.3700 2,074,100
86.9700 91.3150 86.7200 89.1000 1,054,000
7 · 8-K Pre-market · 07:08 ET 8-K ↗
83.5600 85.4900 82.5700 83.7300 566,900
84.9500 86.4150 82.8300 83.0500 677,000
85.0000 86.2130 82.7300 84.9700 781,600
Weekend
Weekend
85.8100 88.0700 83.5900 84.9900 713,900
82.7000 88.3400 82.7000 87.5100 763,800
83.0000 84.8750 81.3430 83.7500 795,200
80.0000 83.3300 80.0000 83.2400 616,100
83.8600 83.8600 80.8200 81.8000 546,600
Weekend
Weekend
83.3400 85.1000 82.3200 83.2700 570,500
82.0000 84.2500 81.3700 84.0400 497,100
77.8500 83.3300 77.3700 82.6800 1,067,100
77.0000 80.3450 76.7250 77.8100 672,800
79.9100 80.5550 77.0750 77.3200 789,300
Weekend
Weekend
78.6100 80.0800 77.9800 80.0000 260,200
No trading
76.8900 80.3850 76.8900 78.3600 1,062,400
76.8800 79.5000 76.7400 77.9600 593,200
76.3200 77.8400 75.5350 77.0700 623,400
Weekend
Weekend
77.3400 78.0600 74.7500 77.7200 1,522,000
78.9200 80.0300 76.5000 76.5600 1,392,000
80.0100 80.8000 77.9100 78.0600 703,900
78.5000 82.1600 78.2600 80.3900 754,800
82.0300 83.2750 78.3400 79.5900 569,400
Weekend
Weekend
81.2500 83.1360 80.8400 82.3700 476,700
87.3500 88.8700 81.4850 82.5800 841,300
87.8900 91.3630 86.5150 88.0300 766,300
88.5800 89.4000 86.3400 87.5900 692,600
89.0400 91.2400 87.4100 88.1600 766,500
Weekend
Weekend
86.5100 90.1300 85.8550 89.4100 1,384,700
80.0000 88.8000 79.6900 86.5200 1,885,800
6 · 10-Q Pre-market · 06:56 ET 10-Q ↗ 5 · 8-K Pre-market · 06:54 ET 8-K ↗
76.0000 79.5900 75.0000 77.6300 1,001,300
79.9100 80.3700 76.2800 76.6600 896,800
79.9700 83.7000 78.8450 81.6600 1,232,300
Weekend
Weekend
76.4000 79.1000 75.5000 79.0000 907,500
78.1050 78.1050 75.4900 76.0100 864,500
80.6500 80.9900 77.9900 78.5400 650,500
80.2400 81.6700 79.5420 80.3300 734,600
82.9600 83.9700 80.6200 81.8800 763,200
Weekend
Weekend
83.8200 84.8300 82.7000 83.0600 617,800
84.8500 85.5000 82.8500 83.5300 734,200
85.2700 86.6500 82.3900 83.5000 923,100
90.4400 91.2850 85.0050 85.8400 1,052,100
91.1200 93.0700 90.4200 91.6400 530,300
Weekend
Weekend
91.4300 92.3000 88.9200 89.8200 844,400
93.6400 94.3600 91.6100 92.8900 830,600
100.9500 101.1800 88.5100 91.4800 2,073,600
98.5200 102.2300 96.5100 99.9500 1,024,900
97.0800 102.4900 97.0800 100.1900 1,393,000
Weekend
Weekend
100.4300 102.9300 96.3900 96.4800 1,516,200
98.0500 100.0500 97.2700 97.7500 1,529,300
91.6400 98.2450 91.3610 97.7100 2,240,000
4 · 8-K Pre-market · 08:14 ET 8-K ↗
88.5800 93.4800 88.5250 92.7000 1,700,200
89.4000 91.3900 88.0300 88.4500 913,600
Weekend
Weekend
86.6000 90.4500 86.3100 88.8300 976,500
86.4400 87.7500 83.9650 85.8000 643,100
83.6900 86.9430 83.0000 85.7900 591,700
84.4200 84.9200 81.4300 83.4800 587,100
82.5800 85.2050 82.0500 85.0200 868,500
Weekend
Weekend
81.6250 83.7200 81.0800 82.8000 565,800
83.5900 85.4400 81.8800 82.1800 1,103,700
77.5600 83.5500 76.8300 82.9500 1,080,900
75.4300 77.9400 75.3600 77.2700 749,000
76.4400 76.4400 73.2100 74.9100 681,700
Weekend
Weekend
76.5900 77.6100 75.0900 76.0200 1,123,800
77.1000 78.3400 75.8670 77.2000 545,300
77.4000 78.5800 76.4100 77.1000 614,000
77.0600 77.6100 76.1200 77.4200 499,100
73.5500 77.4350 73.5500 76.7700 776,100
Weekend
Weekend
71.9900 73.8700 71.8900 72.8400 430,800
72.1700 73.4700 71.9650 72.1800 438,500
71.8300 73.2000 71.8300 72.6000 475,400
73.3000 74.3400 72.3900 72.4800 436,900
75.5200 75.6700 73.0400 73.0500 453,400
Weekend
Weekend
70.5900 75.6500 70.5900 75.5500 690,000
71.2000 72.1800 70.3600 70.7600 531,600
71.8100 72.4080 71.1000 71.2800 482,300
73.2300 73.4850 70.9150 72.1200 839,200
No trading
Weekend
Weekend
72.7000 74.4100 72.3700 74.2600 643,800
73.0700 73.2700 71.6100 72.8400 576,000
73.0500 73.7430 72.4150 72.8000 481,900
71.5100 73.7700 70.7100 73.5000 687,200
71.8500 73.8200 71.2550 72.8700 618,800
Weekend
Weekend
69.8600 72.7500 69.7200 72.3100 756,000
69.2100 70.0150 68.7800 69.7500 386,000
69.5000 70.2250 69.1500 69.3600 705,500
70.5000 71.1800 69.8100 69.8400 635,300
71.2500 72.0100 70.1800 70.9500 963,900
Weekend
Weekend
75.0000 75.4000 70.8900 71.0000 1,352,400
74.9800 75.0350 72.6000 74.7700 615,400
75.8200 76.8650 73.6600 74.7600 925,000
76.2100 78.1500 75.8700 76.7000 819,400
76.1500 77.4000 74.0200 75.2300 518,100
Weekend
Weekend
77.6100 80.4400 75.5550 76.1800 747,800
75.3700 78.7400 73.1000 75.9300 843,600
78.4250 80.0000 74.8100 75.4600 761,600
78.2000 80.0000 75.8100 78.1700 842,500
3 · 10-Q Pre-market · 07:16 ET 10-Q ↗ 2 · 8-K Pre-market · 06:55 ET 8-K ↗
73.0000 77.0900 72.5800 76.5600 1,044,300
Weekend
Weekend
73.0000 73.4900 70.9100 72.8300 855,000
1 · 8-K After-hours · 17:29 ET 8-K ↗
72.5200 74.2800 70.4200 73.8100 1,052,200
75.8100 76.3100 72.6600 73.4700 616,900
75.7500 77.2500 75.2100 76.7000 680,100
78.6600 78.6600 73.6800 75.0900 1,013,000
Weekend
Weekend
80.7500 81.1200 77.4000 78.1400 726,700
81.2900 82.5400 80.2500 80.7500 697,800
84.0500 84.0500 81.1000 81.7100 742,300

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

19 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:48 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
17 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:58 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
13 DEFA14A DEFA14A (opens SEC filing in a new tab) After market open · 10:09 ET Summarise
12 DEF 14A DEF 14A (opens SEC filing in a new tab) After market open · 10:08 ET Summarise
11 10-K/A 10-K/A (opens SEC filing in a new tab) After-hours · 16:23 ET Summarise
10 10-K 10-K (opens SEC filing in a new tab) After-hours · 17:03 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:01 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:28 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:08 ET Summarise
6 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 06:56 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:54 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) Pre-market · 08:14 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) Pre-market · 07:16 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:55 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:29 ET Summarise