{"transactions":[{"id":894242,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock, par value $0.01 per share","published_at":"2026-02-19T20:05:17.000Z","date":"2026-02-17","kind":"grant","planned":false,"acquired":true,"shares":1610,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of the 24,958 shares reported, 1,610 are unvested restricted stock units."}],"balance_after":24958,"source":{"system":"sec-edgar","filing":"0001193125-26-059989","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000119312526059989/ownership.xml","form_type":"4"}},{"id":1036601,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-09-18T16:05:02.000Z","date":"2025-09-17","kind":"sale","planned":false,"acquired":false,"shares":3043,"price":77.07,"value":234524.01,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock sold to cover the Reporting Person's tax liability from the vesting of restricted stock awards previously granted to the Reporting Person that fully vested in connection with the terms of the Agreement and Plan of Merger, dated as of August 20, 2024, by and among Core Natural Resources, Inc. (formerly known as CONSOL Energy Inc.), Mountain Range Merger Sub Inc. and Arch Resources, Inc."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Of the 23,348 shares reported, 3,348 are unvested restricted stock units."}],"balance_after":23348,"source":{"system":"sec-edgar","filing":"0001193125-25-207385","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000119312525207385/ownership.xml","form_type":"4"}},{"id":1256646,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-02-20T17:50:55.000Z","date":"2025-02-18","kind":"grant","planned":false,"acquired":true,"shares":1674,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Of the 26,391 shares reported, 3,348 are unvested restricted stock units."}],"balance_after":26391,"source":{"system":"sec-edgar","filing":"0000950170-25-024384","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000095017025024384/ownership.xml","form_type":"4"}},{"id":1256645,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-02-20T17:50:55.000Z","date":"2025-02-18","kind":"grant","planned":false,"acquired":true,"shares":1674,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":24717,"source":{"system":"sec-edgar","filing":"0000950170-25-024384","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000095017025024384/ownership.xml","form_type":"4"}},{"id":1301719,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-01-16T19:24:04.000Z","date":"2025-01-14","kind":"grant","planned":false,"acquired":true,"shares":23043,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Pursuant to the Agreement and Plan of Merger, dated as of August 20, 2024 (the \"Merger Agreement\"), by and among Core Natural Resources, Inc. (formerly known as CONSOL Energy Inc.), a Delaware corporation (the \"Company\"), Mountain Range Merger Sub Inc., a Delaware corporation and wholly-owned subsidiary of the Company (\"Merger Sub\") and Arch Resources, Inc., a Delaware corporation (\"Arch\"), on January 14, 2025, Merger Sub merged with and into Arch, with Arch surviving the merger as a wholly-owned subsidiary of the Company (the \"Merger\"). At the effective time of the Merger (the \"Effective Time\"), pursuant to the Merger Agreement, each issued and outstanding share of Class A common stock, par value $0.01 per share, of Arch held by the Reporting Person automatically converted into the right to receive 1.326 shares of common stock, par value $0.01 per share, of the Company."},{"field":"shares","element":"transactionShares","label":"F2","text":"(Continued from footnote 1) In addition, at the Effective Time, each restricted stock unit award and performance-based restricted stock unit award of Arch held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into shares of common stock, par value $0.01 per share, of the Company in accordance with the terms of the Merger Agreement. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company."}],"balance_after":23043,"source":{"system":"sec-edgar","filing":"0000950170-25-006376","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000095017025006376/ownership.xml","form_type":"4"}},{"id":1303806,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-01-14T14:58:49.000Z","date":"2025-01-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":14738,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Pursuant to the Merger Agreement, at the Effective Time, each restricted stock unit (\"RSU\") was canceled in exchange for a number of shares of CONSOL Common Stock based on the number of shares of Arch Common Stock underlying the applicable RSU award and the Per-Share Merger Consideration, rounded to the nearest whole number of shares."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Pursuant to the Merger Agreement, at the Effective Time, each restricted stock unit (\"RSU\") was canceled in exchange for a number of shares of CONSOL Common Stock based on the number of shares of Arch Common Stock underlying the applicable RSU award and the Per-Share Merger Consideration, rounded to the nearest whole number of shares."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Pursuant to the Merger Agreement, at the Effective Time, each restricted stock unit (\"RSU\") was canceled in exchange for a number of shares of CONSOL Common Stock based on the number of shares of Arch Common Stock underlying the applicable RSU award and the Per-Share Merger Consideration, rounded to the nearest whole number of shares."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Pursuant to the Merger Agreement, at the Effective Time, each restricted stock unit (\"RSU\") was canceled in exchange for a number of shares of CONSOL Common Stock based on the number of shares of Arch Common Stock underlying the applicable RSU award and the Per-Share Merger Consideration, rounded to the nearest whole number of shares."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":14738},"source":{"system":"sec-edgar","filing":"0000950170-25-005272","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000095017025005272/ownership.xml","form_type":"4"}},{"id":1303805,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK A","position":1,"cik":"0001046085","reported_name":"KRIEGSHAUSER PATRICK A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2025-01-14T14:58:49.000Z","date":"2025-01-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":2640,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Pursuant to that certain Agreement and Plan of Merger dated August 20, 2024 (the \"Merger Agreement\") by and among the Issuer, CONSOL Energy Inc. (\"CONSOL\"), and Mountain Range Merger Sub Inc., a wholly owned subsidiary of CONSOL (\"Merger Sub\"), Merger Sub merged with and into the Issuer (the \"Merger\"), with the Issuer continuing as the surviving corporation and a direct, wholly owned subsidiary of CONSOL. 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person's separation of service from the Board or the date of the occurrence of a Change of Control."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The deferred stock units are fully vested and will be delivered to the reporting person on the earlier of the third month anniversary of the date of the reporting person's separation of service from the Board or the date of the occurrence of a Change of Control."}],"balance_after":3188,"derivative":{"underlying":"Class A Common Stock","underlying_shares":17},"source":{"system":"sec-edgar","filing":"0000950170-24-131272","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1046085/000095017024131272/ownership.xml","form_type":"4"}},{"id":1406973,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65014,"kind":"person","name":"KRIEGSHAUSER PATRICK 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