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United States Coal

Core Natural Resources Inc (CNR)

Track

Over the last 90 days, Core Natural Resources Inc. has seen significant insider selling, with a net value of -$5.82 million. Executives were responsible for all of this net selling. The stock price has decreased by 6.6% in the same period. The last earnings report showed a 41.38% EPS beat.
Stock chart
Ticker: CNR Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Klein Rosemary L
SVP, CLO & Corp. Sec.
2 sales — total 1,603,100 USD
Sale 19 Mar 2026
Value US$2,019,837.14 | Price 412.46 | Shares 76,901
Sale 19 Mar 2026
Value US$1,273,153.54 | Price 196.89 | Shares 7,073
Proposed sale 19 Mar 2026
Value US$3,236,447.96 | Price 374.41 | Shares 31,018
Sale 18 Mar 2026
Value US$4,122,874.00 | Price 101.15 | Shares 40,760
Proposed sale 18 Mar 2026
Value US$4,138,770.40 | Price 101.54 | Shares 40,760
Sale 17 Mar 2026
Value US$97,660.00 | Price 97.66 | Shares 1,000
Proposed sale 17 Mar 2026
Value US$97,660.00 | Price 97.66 | Shares 1,000
Sale 10 Mar 2026
Value US$348,156.00 | Price 91.62 | Shares 3,800
Proposed sale 10 Mar 2026
Value US$348,688.00 | Price 91.76 | Shares 3,800
Sale 10 Mar 2026
Value US$550,200.00 | Price 91.70 | Shares 6,000
Proposed sale 10 Mar 2026
Value US$550,219.20 | Price 91.70 | Shares 6,000
Proposed sale 18 Dec 2025
Value US$5,395,281.29 | Price 89.92 | Shares 60,000
Planned sale 9 Oct 2025
Value US$100,000.00 | Price 100.00 | Shares 1,000
Proposed sale 9 Oct 2025
Value US$97,710.00 | Price 97.71 | Shares 1,000
Planned sale 8 Oct 2025
Value US$95,000.00 | Price 95.00 | Shares 1,000
Proposed sale 8 Oct 2025
Value US$92,700.00 | Price 92.70 | Shares 1,000
Planned sale 3 Oct 2025
Value US$225,000.00 | Price 90.00 | Shares 2,500
Proposed sale 3 Oct 2025
Value US$214,500.00 | Price 85.80 | Shares 2,500
Sale 25 Sep 2025
Value US$411,000.00 | Price 82.20 | Shares 5,000
Proposed sale 25 Sep 2025
Value US$410,975.50 | Price 82.20 | Shares 5,000
Sale 17 Sep 2025
Value US$234,524.01 | Price 77.07 | Shares 3,043
Proposed sale 17 Sep 2025
Value US$234,524.01 | Price 77.07 | Shares 3,043
Buy 9 May 2025
Value US$502,125.00 | Price 66.95 | Shares 7,500
Sale 31 Mar 2025
Value US$306,049.92 | Price 75.68 | Shares 4,044
Sale 31 Mar 2025
Value US$357,681.87 | Price 74.97 | Shares 4,771
Proposed sale 21 Feb 2025
Value US$3,899,638.00 | Price 75.57 | Shares 51,603
Planned sale 28 Jun 2024
Value US$378,473.00 | Price 102.29 | Shares 3,700
Planned sale 28 Jun 2024
Value US$454,454.88 | Price 101.26 | Shares 4,488
Planned sale 28 Jun 2024
Value US$443,028.60 | Price 100.46 | Shares 4,410
Planned sale 28 Jun 2024
Value US$309,349.00 | Price 99.79 | Shares 3,100
Proposed sale 28 Jun 2024
Value US$1,601,666.94 | Price 102.03 | Shares 15,698
Planned sale 27 Jun 2024
Value US$30,549.00 | Price 101.83 | Shares 300
Planned sale 27 Jun 2024
Value US$20,102.00 | Price 100.51 | Shares 200
Planned sale 27 Jun 2024
Value US$39,744.00 | Price 99.36 | Shares 400
Planned sale 27 Jun 2024
Value US$78,848.00 | Price 98.56 | Shares 800
Proposed sale 27 Jun 2024
Value US$163,829.00 | Price 96.37 | Shares 1,700
Planned sale 23 May 2024
Value US$88,371.00 | Price 98.19 | Shares 900
Proposed sale 23 May 2024
Value US$86,013.00 | Price 95.57 | Shares 900
Planned sale 22 May 2024
Value US$530,334.00 | Price 98.21 | Shares 5,400
Proposed sale 22 May 2024
Value US$524,286.00 | Price 97.09 | Shares 5,400
Sale 7 Mar 2024
Value US$189,120.00 | Price 94.56 | Shares 2,000
Proposed sale 7 Mar 2024
Value US$189,127.60 | Price 94.56 | Shares 2,000
Planned sale 20 Dec 2023
Value US$72,233.00 | Price 103.19 | Shares 700
Planned sale 20 Dec 2023
Value US$611,703.12 | Price 102.48 | Shares 5,969
Proposed sale 20 Dec 2023
Value US$658,897.20 | Price 98.80 | Shares 6,669
Planned sale 19 Dec 2023
Value US$165,243.51 | Price 100.33 | Shares 1,647
Planned sale 19 Dec 2023
Value US$258,726.00 | Price 99.51 | Shares 2,600
Planned sale 19 Dec 2023
Value US$78,640.00 | Price 98.30 | Shares 800
Proposed sale 19 Dec 2023
Value US$510,554.52 | Price 101.16 | Shares 5,047
Planned sale 18 Dec 2023
Value US$333,400.00 | Price 100.00 | Shares 3,334
Planned sale 18 Dec 2023
Value US$10,419.15 | Price 99.23 | Shares 105
Planned sale 18 Dec 2023
Value US$148,999.74 | Price 98.22 | Shares 1,517
Proposed sale 18 Dec 2023
Value US$154,982.10 | Price 95.55 | Shares 1,622
Proposed sale 18 Dec 2023
Value US$326,631.98 | Price 97.97 | Shares 3,334
Sale 15 Sep 2023
Value US$1,005,620.91 | Price 98.33 | Shares 10,227
Proposed sale 15 Sep 2023
Value US$1,005,582.05 | Price 98.33 | Shares 10,227
Sale 15 Aug 2023
Value US$1,201,834.00 | Price 80.66 | Shares 14,900
Sale 14 Aug 2023
Value US$684,728.43 | Price 80.49 | Shares 8,507
Sale 11 Aug 2023
Value US$22,729.20 | Price 80.60 | Shares 282
Proposed sale 11 Aug 2023
Value US$1,919,756.56 | Price 81.04 | Shares 23,689
Sale 10 Aug 2023
Value US$803,300.00 | Price 80.33 | Shares 10,000
Sale 10 Aug 2023
Value US$489,223.28 | Price 80.24 | Shares 6,097
Proposed sale 10 Aug 2023
Value US$489,248.89 | Price 80.24 | Shares 6,097
Proposed sale 10 Aug 2023
Value US$803,330.00 | Price 80.33 | Shares 10,000
Proposed sale 26 Apr 2023
Value US$826,077.00 | Price 59.01 | Shares 14,000
Sale 3 Mar 2023
Value US$128,680.00 | Price 64.34 | Shares 2,000
Planned sale 1 Dec 2022
Value US$39,100.00 | Price 78.20 | Shares 500
Planned sale 30 Nov 2022
Value US$258,757.12 | Price 78.08 | Shares 3,314
Planned sale 29 Nov 2022
Value US$941,625.00 | Price 75.33 | Shares 12,500
Sale 6 Sep 2022
Value US$637,500.00 | Price 75.00 | Shares 8,500
Sale 1 Sep 2022
Value US$321,762.24 | Price 71.36 | Shares 4,509
Sale 1 Sep 2022
Value US$280,527.39 | Price 70.29 | Shares 3,991
Sale 18 Aug 2022
Value US$140,720.00 | Price 70.36 | Shares 2,000
Sale 17 Aug 2022
Value US$728,432.37 | Price 68.61 | Shares 10,617
Sale 17 Aug 2022
Value US$1,230,561.54 | Price 67.71 | Shares 18,174
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-03-20 2026-03-19 S Sale
3.7
Klein Rosemary L

SVP, CLO & Corp. Sec.

Officer
76,901 +0.9%
412.46
US$2,019,837 		76,901 +0.9% 412.46 US$2,019,837
2026-03-20 2026-03-19 S Sale
3.7
Klein Rosemary L

SVP, CLO & Corp. Sec.

Officer
7,073 +17.6%
196.89
US$1,273,154 		7,073 +17.6% 196.89 US$1,273,154
2026-03-19 2026-03-19 PrS Proposed sale
3.7
THE ROSEMARY L. KLEIN REV TRUST

Officer

Officer
31,018
374.41
US$3,236,448 		31,018 374.41 US$3,236,448
2026-03-19 2026-03-18 S Sale
2.5
Brock James A

Executive Chair and CEO

Executive Director
40,760 -29.0%
101.15
US$4,122,874 		40,760 -29.0% 101.15 US$4,122,874
2026-03-18 2026-03-18 PrS Proposed sale
2.5
James A. Brock

Officer

Officer
40,760
101.54
US$4,138,770 		40,760 101.54 US$4,138,770
2026-03-19 2026-03-17 S Sale
2.9
Rothka John

Chief Accounting Officer

Officer
1,000 -16.2%
97.66
US$97,660 		1,000 -16.2% 97.66 US$97,660
2026-03-17 2026-03-17 PrS Proposed sale
2.9
Rothka John

Officer

Officer
1,000
97.66
US$97,660 		1,000 97.66 US$97,660
2026-03-11 2026-03-10 S Sale
2.9
Rothka John

Chief Accounting Officer

Officer
3,800 -38.0%
91.62
US$348,156 		3,800 -38.0% 91.62 US$348,156
2026-03-11 2026-03-10 S Sale
2.0
NAVARRE RICHARD A
Non-Executive Director
6,000 -25.0%
91.70
US$550,200 		6,000 -25.0% 91.70 US$550,200
2026-03-10 2026-03-10 PrS Proposed sale
2.0
Richard A Navarre

Director

Non-Executive Director
6,000
91.70
US$550,219 		6,000 91.70 US$550,219
2026-03-10 2026-03-10 PrS Proposed sale
2.9
Rothka John

Officer

Officer
3,800
91.76
US$348,688 		3,800 91.76 US$348,688
2025-12-18 2025-12-18 PrS Proposed sale
3.5
Lang Paul A

Former Officer and Director

Executive Director
60,000
89.92
US$5,395,281 		60,000 89.92 US$5,395,281
2025-10-10 2025-10-09 PlS Planned sale
2.9
Rothka John

Chief Accounting Officer

Officer
1,000 -9.7%
100.00
US$100,000 		1,000 -9.7% 100.00 US$100,000
2025-10-09 2025-10-09 PrS Proposed sale
2.9
JOHN ROTHKA

Officer

Officer
1,000
97.71
US$97,710 		1,000 97.71 US$97,710
2025-10-10 2025-10-08 PlS Planned sale
2.9
Rothka John

Chief Accounting Officer

Officer
1,000 -8.8%
95.00
US$95,000 		1,000 -8.8% 95.00 US$95,000
2025-10-08 2025-10-08 PrS Proposed sale
2.9
JOHN ROTHKA

Officer

Officer
1,000
92.70
US$92,700 		1,000 92.70 US$92,700
2025-10-06 2025-10-03 PlS Planned sale
2.9
Rothka John

Chief Accounting Officer

Officer
2,500 -18.1%
90.00
US$225,000 		2,500 -18.1% 90.00 US$225,000
2025-10-03 2025-10-03 PrS Proposed sale
2.9
JOHN ROTHKA

Officer

Officer
2,500
85.80
US$214,500 		2,500 85.80 US$214,500
2025-09-26 2025-09-25 S Sale
2.0
NAVARRE RICHARD A
Non-Executive Director
5,000 -18.6%
82.20
US$411,000 		5,000 -18.6% 82.20 US$411,000
2025-09-25 2025-09-25 PrS Proposed sale
2.0
RICHARD NAVARRE

Director

Non-Executive Director
5,000
82.20
US$410,976 		5,000 82.20 US$410,976
2025-09-18 2025-09-17 S Sale
0.7
KRIEGSHAUSER PATRICK A
Non-Executive Director
3,043 -11.5%
77.07
US$234,524 		3,043 -11.5% 77.07 US$234,524
2025-09-17 2025-09-17 PrS Proposed sale
0.7
PATRICK A. KRIEGSHAUSER

Director

Non-Executive Director
3,043
77.07
US$234,524 		3,043 77.07 US$234,524
2025-05-12 2025-05-09 B Purchase
3.5
Lang Paul A

Chief Executive Officer

Executive Director
7,500 +2.2%
66.95
US$502,125 		7,500 +2.2% 66.95 US$502,125
2025-04-02 2025-03-31 S Sale
3.8
KOEPPEL HOLLY K
Non-Executive Director
4,044 -23.3%
75.68
US$306,050 		4,044 -23.3% 75.68 US$306,050
2025-04-02 2025-03-31 S Sale
3.8
KOEPPEL HOLLY K
Non-Executive Director
4,771 -21.5%
74.97
US$357,682 		4,771 -21.5% 74.97 US$357,682
2025-02-21 2025-02-21 PrS Proposed sale
2.6
MILLS JOHN T

Director

Non-Executive Director
51,603
75.57
US$3,899,638 		51,603 75.57 US$3,899,638
2024-07-01 2024-06-28 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
3,700 -0.7%
102.29
US$378,473 		3,700 -0.7% 102.29 US$378,473
2024-07-01 2024-06-28 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
4,488 -0.9%
101.26
US$454,455 		4,488 -0.9% 101.26 US$454,455
2024-07-01 2024-06-28 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
4,410 -0.8%
100.46
US$443,029 		4,410 -0.8% 100.46 US$443,029
2024-07-01 2024-06-28 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
3,100 -0.6%
99.79
US$309,349 		3,100 -0.6% 99.79 US$309,349
2024-06-28 2024-06-28 PrS Proposed sale
2.5
James A. Brock

Other: CEO
15,698
102.03
US$1,601,667 		15,698 102.03 US$1,601,667
2024-07-01 2024-06-27 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
300 -0.1%
101.83
US$30,549 		300 -0.1% 101.83 US$30,549
2024-07-01 2024-06-27 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
200 -0.0%
100.51
US$20,102 		200 -0.0% 100.51 US$20,102
2024-07-01 2024-06-27 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
400 -0.1%
99.36
US$39,744 		400 -0.1% 99.36 US$39,744
2024-07-01 2024-06-27 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
800 -0.2%
98.56
US$78,848 		800 -0.2% 98.56 US$78,848
2024-06-27 2024-06-27 PrS Proposed sale
2.5
James A. Brock

Other: CEO
1,700
96.37
US$163,829 		1,700 96.37 US$163,829
2024-05-24 2024-05-23 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
900 -0.2%
98.19
US$88,371 		900 -0.2% 98.19 US$88,371
2024-05-23 2024-05-23 PrS Proposed sale
2.5
James A. Brock

Other: CEO
900
95.57
US$86,013 		900 95.57 US$86,013
2024-05-24 2024-05-22 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
5,400 -1.0%
98.21
US$530,334 		5,400 -1.0% 98.21 US$530,334
2024-05-22 2024-05-22 PrS Proposed sale
2.5
James A. Brock

Other: CEO
5,400
97.09
US$524,286 		5,400 97.09 US$524,286
2024-03-08 2024-03-07 S Sale
2.9
Rothka John

Chief Accounting Officer

Officer
2,000 -13.2%
94.56
US$189,120 		2,000 -13.2% 94.56 US$189,120
2024-03-07 2024-03-07 PrS Proposed sale
2.9
JOHN ROTHKA

Officer

Officer
2,000
94.56
US$189,128 		2,000 94.56 US$189,128
2023-12-22 2023-12-20 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
700 -0.1%
103.19
US$72,233 		700 -0.1% 103.19 US$72,233
2023-12-22 2023-12-20 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
5,969 -1.1%
102.48
US$611,703 		5,969 -1.1% 102.48 US$611,703
2023-12-20 2023-12-20 PrS Proposed sale
2.5
James A. Brock

Other: CEO
6,669
98.80
US$658,897 		6,669 98.80 US$658,897
2023-12-20 2023-12-19 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
1,647 -0.3%
100.33
US$165,244 		1,647 -0.3% 100.33 US$165,244
2023-12-20 2023-12-19 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
2,600 -0.5%
99.51
US$258,726 		2,600 -0.5% 99.51 US$258,726
2023-12-20 2023-12-19 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
800 -0.1%
98.30
US$78,640 		800 -0.1% 98.30 US$78,640
2023-12-19 2023-12-19 PrS Proposed sale
2.5
James A. Brock

Other: CEO
5,047
101.16
US$510,555 		5,047 101.16 US$510,555
2023-12-20 2023-12-18 PlS Planned sale
2.4
Wiegand Martha A

General Counsel & Secretary

Officer
3,334 -8.7%
100.00
US$333,400 		3,334 -8.7% 100.00 US$333,400
2023-12-20 2023-12-18 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
105 -0.0%
99.23
US$10,419 		105 -0.0% 99.23 US$10,419
2023-12-20 2023-12-18 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
1,517 -0.3%
98.22
US$149,000 		1,517 -0.3% 98.22 US$149,000
2023-12-18 2023-12-18 PrS Proposed sale
2.5
James A. Brock

Other: CEO
1,622
95.55
US$154,982 		1,622 95.55 US$154,982
2023-12-18 2023-12-18 PrS Proposed sale
2.4
MARTHA A WIEGAND

Officer

Officer
3,334
97.97
US$326,632 		3,334 97.97 US$326,632
2023-09-19 2023-09-15 S Sale
2.4
Platt Joseph P JR
Non-Executive Director
10,227 -23.1%
98.33
US$1,005,621 		10,227 -23.1% 98.33 US$1,005,621
2023-09-15 2023-09-15 PrS Proposed sale
2.4
JOSEPH P PLATT JR.

Director

Non-Executive Director
10,227
98.33
US$1,005,582 		10,227 98.33 US$1,005,582
2023-08-16 2023-08-15 S Sale
2.6
MILLS JOHN T
Non-Executive Director
14,900 -21.6%
80.66
US$1,201,834 		14,900 -21.6% 80.66 US$1,201,834
2023-08-16 2023-08-14 S Sale
2.6
MILLS JOHN T
Non-Executive Director
8,507 -11.0%
80.49
US$684,728 		8,507 -11.0% 80.49 US$684,728
2023-08-15 2023-08-11 S Sale
2.6
MILLS JOHN T
Non-Executive Director
282 -0.4%
80.60
US$22,729 		282 -0.4% 80.60 US$22,729
2023-08-11 2023-08-11 PrS Proposed sale
2.6
MILLS JOHN T

Director

Non-Executive Director
23,689
81.04
US$1,919,757 		23,689 81.04 US$1,919,757
2023-08-14 2023-08-10 S Sale
2.4
Wiegand Martha A

General Counsel & Secretary

Officer
10,000 -20.5%
80.33
US$803,300 		10,000 -20.5% 80.33 US$803,300
2023-08-14 2023-08-10 S Sale
2.0
Salvatori Kurt R.

Chief Administrative Officer

Officer
6,097 -36.7%
80.24
US$489,223 		6,097 -36.7% 80.24 US$489,223
2023-08-10 2023-08-10 PrS Proposed sale
2.0
KURT R SALVATORI

Officer

Officer
6,097
80.24
US$489,249 		6,097 80.24 US$489,249
2023-08-10 2023-08-10 PrS Proposed sale
2.4
MARTHA WIEGAND

Officer

Officer
10,000
80.33
US$803,330 		10,000 80.33 US$803,330
2023-04-26 2023-04-26 PrS Proposed sale
0.6
SOPHIE BERGERON

Officer

Officer
14,000
59.01
US$826,077 		14,000 59.01 US$826,077
2023-03-07 2023-03-03 S Sale
2.9
Rothka John

Chief Accounting Officer

Officer
2,000 -12.3%
64.34
US$128,680 		2,000 -12.3% 64.34 US$128,680
2022-12-05 2022-12-01 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
500 -0.1%
78.20
US$39,100 		500 -0.1% 78.20 US$39,100
2022-12-01 2022-11-30 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
3,314 -0.7%
78.08
US$258,757 		3,314 -0.7% 78.08 US$258,757
2022-12-01 2022-11-29 PlS Planned sale
2.5
Brock James A

Chief Executive Officer

Executive Director
12,500 -2.6%
75.33
US$941,625 		12,500 -2.6% 75.33 US$941,625
2022-09-07 2022-09-06 S Sale
2.4
Wiegand Martha A

General Counsel & Secretary

Officer
8,500 -13.9%
75.00
US$637,500 		8,500 -13.9% 75.00 US$637,500
2022-09-02 2022-09-01 S Sale
2.4
Wiegand Martha A

General Counsel & Secretary

Officer
4,509 -6.8%
71.36
US$321,762 		4,509 -6.8% 71.36 US$321,762
2022-09-02 2022-09-01 S Sale
2.4
Wiegand Martha A

General Counsel & Secretary

Officer
3,991 -5.7%
70.29
US$280,527 		3,991 -5.7% 70.29 US$280,527
2022-08-19 2022-08-18 S Sale
2.9
Rothka John

Chief Accounting Officer

Officer
2,000 -11.0%
70.36
US$140,720 		2,000 -11.0% 70.36 US$140,720
2022-08-19 2022-08-17 S Sale
2.5
Brock James A

Chief Executive Officer

Executive Director
10,617 -2.1%
68.61
US$728,432 		10,617 -2.1% 68.61 US$728,432
2022-08-19 2022-08-17 S Sale
2.5
Brock James A

Chief Executive Officer

Executive Director
18,174 -3.5%
67.71
US$1,230,562 		18,174 -3.5% 67.71 US$1,230,562
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