Core Natural Resources, Inc. (CNR) Insider Ownership

Historic Insider Ownership Trends

According to recent filings covering the 90 days ending February 10, 2026, the three most significant insider holders at Core Natural Resources are Executive Chair James A Brock (511.33K shares), Chief Executive Officer Paul A Lang (341.06K shares), Director William P Powell (130.09K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
James A Brock Executive Chair 511,335 22 May, 2025
Paul A Lang Chief Executive Officer 341,062 12 May, 2025
William P Powell 130,088 04 May, 2023
Ed Roberson 75,951 05 May, 2022
Deck Slone Svp And Strategy & Public Policy 66,365 20 Feb, 2025
Rosemary L Klein Svp And Clo & Corp. Sec. 64,850 20 Feb, 2025
John T Mills 55,950 09 May, 2024
Miteshkumar Thakkar President & Cfo 54,956 20 Feb, 2025
Joseph P Jr Platt 39,038 20 Feb, 2025
Martha A Wiegand General Counsel & Secretary 37,906 09 Feb, 2024
Sophie Bergeron 30,828 12 May, 2022
Patrick A Kriegshauser 23,348 18 Sep, 2025
Richard A Navarre 21,830 26 Sep, 2025
George John Jr Schuller Svp And Chief Operating Officer 21,590 20 Feb, 2025
Kurt R. Salvatori Svp And Chief Admin. Officer 20,913 20 Feb, 2025
Holly K Koeppel 13,348 02 Apr, 2025
Robert J. Jr. Braithwaite Svp And Marketing & Sales 12,624 20 Feb, 2025
John Rothka Chief Accounting Officer 9,307 10 Oct, 2025
Cassandra Chia-Wei Pan 7,707 20 Feb, 2025
Valli Perera 7,707 20 Feb, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
13 Nov, 2025 James A Brock Common stock, par value $0.01 per share A 140,760 $0.00 140,760 I G
13 Nov, 2025 James A Brock Common stock, par value $0.01 per share D 140,760 $0.00 24,440 I G
09 Oct, 2025 John Rothka Common stock, par value $0.01 per share D 1,000 $100.00 9,307 D S
08 Oct, 2025 John Rothka Common stock, par value $0.01 per share D 1,000 $95.00 10,307 D S
03 Oct, 2025 John Rothka Common stock, par value $0.01 per share D 2,500 $90.00 11,307 D S
25 Sep, 2025 Richard A Navarre Common stock, par value $0.01 per share D 5,000 $82.20 21,830 D S
25 Sep, 2025 Richard A Navarre - - 21,830 D
17 Sep, 2025 Patrick A Kriegshauser - - 23,348 D
17 Sep, 2025 Patrick A Kriegshauser Common stock, par value $0.01 per share D 3,043 $77.07 23,348 D S
20 May, 2025 James A Brock Common stock, par value $0.01 per share D 165,200 $0.00 370,575 D G
20 May, 2025 James A Brock - - 370,575 D
20 May, 2025 James A Brock - - 165,200 I
20 May, 2025 James A Brock Common stock, par value $0.01 per share A 165,200 $0.00 165,200 I G
09 May, 2025 Paul A Lang - - 341,062 D
09 May, 2025 Paul A Lang Common stock, par value $0.01 per share A 7,500 $66.95 341,062 D P
31 Mar, 2025 Holly K Koeppel Common stock, par value $0.01 per share D 4,044 $75.68 13,348 D S
31 Mar, 2025 Holly K Koeppel Common stock, par value $0.01 per share D 4,771 $74.97 17,392 D S
18 Feb, 2025 Patrick A Kriegshauser Common stock, par value $0.01 per share A 1,674 $0.00 24,717 D A
18 Feb, 2025 Patrick A Kriegshauser Common stock, par value $0.01 per share A 1,674 $0.00 26,391 D A
18 Feb, 2025 Patrick A Kriegshauser - - 26,391 D