{"transactions":[{"id":892892,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Strategy & Public Policy"}}],"security":"Common stock, par value $0.01 per share","published_at":"2026-02-19T19:53:44.000Z","date":"2026-02-18","kind":"tax_withholding","planned":false,"acquired":false,"shares":731,"price":88.96,"value":65029.76,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of restricted stock units previously granted to him."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Of the 70,207 shares reported, 10,917 are unvested restricted stock units."}],"balance_after":70207,"source":{"system":"sec-edgar","filing":"0001193125-26-059958","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1335025/000119312526059958/ownership.xml","form_type":"4"}},{"id":892891,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Strategy & Public Policy"}}],"security":"Common stock, par value $0.01 per share","published_at":"2026-02-19T19:53:44.000Z","date":"2026-02-18","kind":"tax_withholding","planned":false,"acquired":false,"shares":487,"price":88.96,"value":43323.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of restricted stock units previously granted to him."}],"balance_after":70938,"source":{"system":"sec-edgar","filing":"0001193125-26-059958","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1335025/000119312526059958/ownership.xml","form_type":"4"}},{"id":892890,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Strategy & Public Policy"}}],"security":"Common stock, par value $0.01 per share","published_at":"2026-02-19T19:53:44.000Z","date":"2026-02-17","kind":"grant","planned":false,"acquired":true,"shares":5060,"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 annually in equal installments over a period of three years, beginning 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":71425,"source":{"system":"sec-edgar","filing":"0001193125-26-059958","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1335025/000119312526059958/ownership.xml","form_type":"4"}},{"id":1255289,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Strategy & Public Policy"}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-02-20T17:43:07.000Z","date":"2025-02-18","kind":"grant","planned":false,"acquired":true,"shares":5024,"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 annually in equal installments over a period of three years, beginning 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 66,365 shares reported, 10,048 are unvested restricted stock units."}],"balance_after":66365,"source":{"system":"sec-edgar","filing":"0000950170-25-024359","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1335025/000095017025024359/ownership.xml","form_type":"4"}},{"id":1255288,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Strategy & Public Policy"}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-02-20T17:43:07.000Z","date":"2025-02-18","kind":"grant","planned":false,"acquired":true,"shares":5024,"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 annually in equal installments over a period of two years, beginning 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":61341,"source":{"system":"sec-edgar","filing":"0000950170-25-024359","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1335025/000095017025024359/ownership.xml","form_type":"4"}},{"id":1301374,"issuer":{"id":3899,"kind":"organization","name":"Core Natural Resources, Inc."},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"SVP, Strategy & Public Policy"}}],"security":"Common stock, par value $0.01 per share","published_at":"2025-01-16T19:12:55.000Z","date":"2025-01-14","kind":"grant","planned":false,"acquired":true,"shares":56317,"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, subject to applicable tax withholdings. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company."}],"balance_after":56317,"source":{"system":"sec-edgar","filing":"0000950170-25-006355","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1335025/000095017025006355/ownership.xml","form_type":"4"}},{"id":1303775,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2025-01-14T14:05:23.000Z","date":"2025-01-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":22194,"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":22194},"source":{"system":"sec-edgar","filing":"0000950170-25-005232","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017025005232/ownership.xml","form_type":"4"}},{"id":1303774,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Class A Common Stock","published_at":"2025-01-14T14:05:23.000Z","date":"2025-01-14","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":29120,"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. At the effective time of the Merger (the \"Effective Time\"), each share of common stock the Issuer (the \"Arch Common Stock\") issued and outstanding immediately prior to the Effective Time (other than certain excluded shares) was converted into the right to receive 1.326 shares of common stock of CONSOL (\"CONSOL Common Stock\") (such number of shares, the \"Per-Share Merger Consideration\")."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-25-005232","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017025005232/ownership.xml","form_type":"4"}},{"id":1386925,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2024-10-15T13:58:44.000Z","date":"2024-10-13","kind":"exercise","planned":true,"acquired":false,"shares":1010,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":1010,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1010},"source":{"system":"sec-edgar","filing":"0000950170-24-114614","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024114614/ownership.xml","form_type":"4"}},{"id":1386924,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-10-15T13:58:44.000Z","date":"2024-10-14","kind":"sale","planned":true,"acquired":false,"shares":253,"price":144.75,"value":36621.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023, and represents an automatic sale to cover tax obligations."}],"balance_after":29120,"source":{"system":"sec-edgar","filing":"0000950170-24-114614","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024114614/ownership.xml","form_type":"4"}},{"id":1386923,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-10-15T13:58:44.000Z","date":"2024-10-13","kind":"tax_withholding","planned":true,"acquired":false,"shares":446,"price":145.86,"value":65053.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":29373,"source":{"system":"sec-edgar","filing":"0000950170-24-114614","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024114614/ownership.xml","form_type":"4"}},{"id":1386922,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-10-15T13:58:44.000Z","date":"2024-10-13","kind":"exercise","planned":true,"acquired":true,"shares":1010,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":29819,"source":{"system":"sec-edgar","filing":"0000950170-24-114614","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024114614/ownership.xml","form_type":"4"}},{"id":1616598,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-25","kind":"exercise","planned":true,"acquired":false,"shares":3150,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"The restricted stock units are fully vested."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3150},"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616597,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-26","kind":"sale","planned":true,"acquired":false,"shares":100,"price":170.78,"value":17078.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023 and represents an automatic sale to cover tax obligations."}],"balance_after":28809,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616596,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-26","kind":"sale","planned":true,"acquired":false,"shares":1392,"price":169.98,"value":236612.16,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023 and represents an automatic sale to cover tax obligations."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $169.58 to $170.49."}],"balance_after":28909,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616595,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-26","kind":"sale","planned":true,"acquired":false,"shares":3328,"price":169.27,"value":563330.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023 and represents an automatic sale to cover tax obligations."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $168.58 to $169.57."}],"balance_after":30301,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616594,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-26","kind":"sale","planned":true,"acquired":false,"shares":200,"price":167.58,"value":33516.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023 and represents an automatic sale to cover tax obligations."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $167.55 to $167.60."}],"balance_after":37259,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616593,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-26","kind":"tax_withholding","planned":true,"acquired":false,"shares":8450,"price":169.54,"value":1432613.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":33829,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616592,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-25","kind":"grant","planned":true,"acquired":true,"shares":16929,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents an award of Performance Stock Units originally granted to the reporting person on February 25, 2021.  On February 21, 2024, the Issuer's Board of Directors determined that the performance condition[s] with respect to such award had been satisified, resulting in the vesting of the shares of Common Stock reported herein."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":42279,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1616591,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-27T13:08:41.000Z","date":"2024-02-25","kind":"exercise","planned":true,"acquired":true,"shares":3150,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":25350,"source":{"system":"sec-edgar","filing":"0000950170-24-020827","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024020827/ownership.xml","form_type":"4"}},{"id":1626041,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2024-02-22T14:51:11.000Z","date":"2024-02-21","kind":"grant","planned":false,"acquired":true,"shares":2700,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":2700,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2700},"source":{"system":"sec-edgar","filing":"0000950170-24-018665","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024018665/ownership.xml","form_type":"4"}},{"id":1646856,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-10","kind":"exercise","planned":true,"acquired":false,"shares":1733,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":1734,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1733},"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646855,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-09","kind":"exercise","planned":true,"acquired":false,"shares":950,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":1900,"derivative":{"underlying":"Class A Common Stock","underlying_shares":950},"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646854,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-12","kind":"sale","planned":true,"acquired":false,"shares":434,"price":169.64,"value":73623.76,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023 and represents an automatic sale to cover tax obligations."}],"balance_after":22200,"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646853,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-12","kind":"tax_withholding","planned":true,"acquired":false,"shares":506,"price":171.27,"value":86662.62,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":22634,"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646852,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-10","kind":"exercise","planned":true,"acquired":true,"shares":1733,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":23140,"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646851,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-09","kind":"sale","planned":true,"acquired":false,"shares":238,"price":172.33,"value":41014.54,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 7, 2023 and represents an automatic sale to cover tax obligations."}],"balance_after":21407,"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646850,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-09","kind":"tax_withholding","planned":true,"acquired":false,"shares":312,"price":168.68,"value":52628.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":21645,"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1646849,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2024-02-13T13:17:24.000Z","date":"2024-02-09","kind":"exercise","planned":true,"acquired":true,"shares":950,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":21957,"source":{"system":"sec-edgar","filing":"0000950170-24-014383","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000095017024014383/ownership.xml","form_type":"4"}},{"id":1760012,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-13","kind":"exercise","planned":true,"acquired":false,"shares":1010,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The restricted stock units are fully vested."}],"balance_after":2020,"derivative":{"underlying":"Class A Common","underlying_shares":1010},"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760011,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-13","kind":"exercise","planned":true,"acquired":false,"shares":505,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The restricted stock units are fully vested."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":505},"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760010,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-16","kind":"sale","planned":true,"acquired":false,"shares":473,"price":154.76,"value":73201.48,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 9, 2022 and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $154.05 to $154.91 per share. The reporting price undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote."}],"balance_after":21007,"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760009,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-16","kind":"sale","planned":true,"acquired":false,"shares":370,"price":152.72,"value":56506.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 9, 2022 and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $152.51 to $153.18 per share. The reporting price undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in the footnote."}],"balance_after":21480,"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760008,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-13","kind":"tax_withholding","planned":true,"acquired":false,"shares":448,"price":154.48,"value":69207.04,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":21850,"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760007,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-13","kind":"exercise","planned":true,"acquired":true,"shares":1010,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":22298,"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760006,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-13","kind":"tax_withholding","planned":true,"acquired":false,"shares":224,"price":154.48,"value":34603.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":21288,"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1760005,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-10-16T18:10:59.000Z","date":"2023-10-13","kind":"exercise","planned":true,"acquired":true,"shares":505,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":21512,"source":{"system":"sec-edgar","filing":"0001209191-23-052897","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123052897/doc4.xml","form_type":"4"}},{"id":1987828,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"exercise","acquired":false,"shares":3283,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F11","text":"The restricted stock units are fully vested."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3283},"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987827,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-25","kind":"exercise","acquired":false,"shares":3150,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F11","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F11","text":"The restricted stock units are fully vested."}],"balance_after":3150,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3150},"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987826,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":100,"price":154.67,"value":15467.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."}],"balance_after":21007,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987825,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":914,"price":153.54,"value":140335.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $153.35 to $153.85 per share.  The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":21107,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987824,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":2824,"price":152.91,"value":431817.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $152.33 to $153.32 per share. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":22021,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987823,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":400,"price":151.47,"value":60588.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $151.12 to $152.10 per share. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":24845,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987822,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":500,"price":150.3,"value":75150.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $150.02 to $150.48 per share. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":25245,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987821,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":400,"price":149.14,"value":59656.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $148.93 to $149.26 per share. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":25745,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987820,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"sale","acquired":false,"shares":1088,"price":148.03,"value":161056.64,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The reported price in Column 4 is a weighted average sale price.  These shares were sold in multiple transactions at prices ranging from $147.56 to $148.21 per share. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":26145,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987819,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"tax_withholding","acquired":false,"shares":9637,"price":152.62,"value":1470798.94,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":27233,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987818,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"grant","acquired":true,"shares":18468,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents an award of Performance Stock Units originally granted to the reporting person on February 27, 2020.  On February 9, 2023, the Issuer's Board of Directors determined that the performance conditions with respect to such award had been satisfied, resulting in the vesting of the shares of Common Stock reported herein."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":36870,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987817,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"exercise","acquired":true,"shares":3283,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":18402,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987816,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-27","kind":"tax_withholding","acquired":false,"shares":1270,"price":152.62,"value":193827.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":15119,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":1987815,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-28T17:31:38.000Z","date":"2023-02-25","kind":"exercise","acquired":true,"shares":3150,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":16389,"source":{"system":"sec-edgar","filing":"0001209191-23-013800","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123013800/doc4.xml","form_type":"4"}},{"id":2020407,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2023-02-13T17:37:32.000Z","date":"2023-02-10","kind":"exercise","acquired":false,"shares":1733,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The restricted stock units are fully vested."}],"balance_after":3467,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1733},"source":{"system":"sec-edgar","filing":"0001209191-23-008824","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123008824/doc4.xml","form_type":"4"}},{"id":2020406,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2023-02-13T17:37:32.000Z","date":"2023-02-09","kind":"grant","acquired":true,"shares":2850,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":2850,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2850},"source":{"system":"sec-edgar","filing":"0001209191-23-008824","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123008824/doc4.xml","form_type":"4"}},{"id":2020405,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-13T17:37:32.000Z","date":"2023-02-10","kind":"sale","acquired":false,"shares":433,"price":141.08,"value":61087.64,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."}],"balance_after":13239,"source":{"system":"sec-edgar","filing":"0001209191-23-008824","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123008824/doc4.xml","form_type":"4"}},{"id":2020404,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-13T17:37:32.000Z","date":"2023-02-10","kind":"tax_withholding","acquired":false,"shares":547,"price":142.49,"value":77942.03,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":13672,"source":{"system":"sec-edgar","filing":"0001209191-23-008824","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123008824/doc4.xml","form_type":"4"}},{"id":2020403,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2023-02-13T17:37:32.000Z","date":"2023-02-10","kind":"exercise","acquired":true,"shares":1733,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":14219,"source":{"system":"sec-edgar","filing":"0001209191-23-008824","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919123008824/doc4.xml","form_type":"4"}},{"id":2136512,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-10-17T12:38:53.000Z","date":"2022-10-13","kind":"exercise","acquired":false,"shares":505,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units are fully vested."}],"balance_after":505,"derivative":{"underlying":"Class A Common Stock","underlying_shares":505},"source":{"system":"sec-edgar","filing":"0001209191-22-053754","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053754/doc4.xml","form_type":"4"}},{"id":2136511,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:38:53.000Z","date":"2022-10-13","kind":"tax_withholding","acquired":false,"shares":226,"price":137.82,"value":31147.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":12486,"source":{"system":"sec-edgar","filing":"0001209191-22-053754","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053754/doc4.xml","form_type":"4"}},{"id":2136510,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:38:53.000Z","date":"2022-10-13","kind":"exercise","acquired":true,"shares":505,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":12712,"source":{"system":"sec-edgar","filing":"0001209191-22-053754","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053754/doc4.xml","form_type":"4"}},{"id":2136491,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-27","kind":"exercise","acquired":false,"shares":3284,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":3283,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3284},"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136490,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-25","kind":"exercise","acquired":false,"shares":3150,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":6300,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3150},"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136489,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-28","kind":"sale","acquired":false,"shares":2598,"price":123.34,"value":320437.32,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."}],"balance_after":12207,"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136488,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-27","kind":"tax_withholding","acquired":false,"shares":1260,"price":116.55,"value":146853.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":14805,"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136487,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-27","kind":"exercise","acquired":true,"shares":3284,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":16065,"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136486,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-25","kind":"tax_withholding","acquired":false,"shares":934,"price":116.55,"value":108857.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":12781,"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136485,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:21:41.000Z","date":"2022-02-25","kind":"exercise","acquired":true,"shares":3150,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":13715,"source":{"system":"sec-edgar","filing":"0001209191-22-053741","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053741/doc4a.xml","form_type":"4/A","original_submission_date":"2022-03-01"}},{"id":2136484,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-10-17T12:17:56.000Z","date":"2021-10-25","kind":"exercise","acquired":false,"shares":2225,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2225},"source":{"system":"sec-edgar","filing":"0001209191-22-053739","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053739/doc4a.xml","form_type":"4/A","original_submission_date":"2021-10-27"}},{"id":2136483,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:17:56.000Z","date":"2021-10-25","kind":"sale","acquired":false,"shares":334,"price":96.47,"value":32220.98,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was to satisfy the reporting person's tax withholding obligations above the statutory withholding rate and was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2021."}],"balance_after":10565,"source":{"system":"sec-edgar","filing":"0001209191-22-053739","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053739/doc4a.xml","form_type":"4/A","original_submission_date":"2021-10-27"}},{"id":2136482,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:17:56.000Z","date":"2021-10-25","kind":"tax_withholding","acquired":false,"shares":662,"price":97.1,"value":64280.2,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":10899,"source":{"system":"sec-edgar","filing":"0001209191-22-053739","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053739/doc4a.xml","form_type":"4/A","original_submission_date":"2021-10-27"}},{"id":2136481,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:17:56.000Z","date":"2021-10-25","kind":"exercise","acquired":true,"shares":2225,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":11561,"source":{"system":"sec-edgar","filing":"0001209191-22-053739","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053739/doc4a.xml","form_type":"4/A","original_submission_date":"2021-10-27"}},{"id":2136480,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-10-17T12:16:03.000Z","date":"2021-02-27","kind":"exercise","acquired":false,"shares":3283,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":6567,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3283},"source":{"system":"sec-edgar","filing":"0001209191-22-053738","document":"doc4a.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053738/doc4a.xml","form_type":"4/A","original_submission_date":"2021-03-02"}},{"id":2136479,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:16:03.000Z","date":"2021-03-01","kind":"sale","acquired":false,"shares":493,"price":48.98,"value":24147.14,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was to satisfy the reporting person's tax withholding obligations above the statutory withholding rate and was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2021."}],"balance_after":9336,"source":{"system":"sec-edgar","filing":"0001209191-22-053738","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053738/doc4a.xml","form_type":"4/A","original_submission_date":"2021-03-02"}},{"id":2136478,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:16:03.000Z","date":"2021-02-27","kind":"tax_withholding","acquired":false,"shares":1059,"price":47.92,"value":50747.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":9829,"source":{"system":"sec-edgar","filing":"0001209191-22-053738","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053738/doc4a.xml","form_type":"4/A","original_submission_date":"2021-03-02"}},{"id":2136477,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-10-17T12:16:03.000Z","date":"2021-02-27","kind":"exercise","acquired":true,"shares":3283,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":10888,"source":{"system":"sec-edgar","filing":"0001209191-22-053738","document":"doc4a.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122053738/doc4a.xml","form_type":"4/A","original_submission_date":"2021-03-02"}},{"id":2366219,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-27","kind":"exercise","acquired":false,"shares":1642,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"shares","element":"transactionShares","label":"F5","text":"The reporting person transferred the right to receive 50% of all shares issued upon vesting of restricted stock units granted prior to April 2020 to his former spouse pursuant to a domestic relations order."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully executed."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully executed."}],"balance_after":1641,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1642},"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2366218,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-25","kind":"exercise","acquired":false,"shares":3150,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully executed."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully executed."}],"balance_after":6300,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3150},"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2366217,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-28","kind":"sale","acquired":false,"shares":2598,"price":123.34,"value":320437.32,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sales of shares was pursuant to the reporting person's pre-existing Rule 10b5-1 trading plan and represents an automatic sale to cover tax obligations and for other purposes."}],"balance_after":7928,"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2366216,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-27","kind":"tax_withholding","acquired":false,"shares":1260,"price":116.55,"value":146853.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":10526,"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2366215,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-27","kind":"exercise","acquired":true,"shares":1642,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":11786,"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2366214,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-25","kind":"tax_withholding","acquired":false,"shares":934,"price":116.55,"value":108857.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":10144,"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2366213,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2022-03-01T16:41:38.000Z","date":"2022-02-25","kind":"exercise","acquired":true,"shares":3150,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":11078,"source":{"system":"sec-edgar","filing":"0001209191-22-014057","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122014057/doc4.xml","form_type":"4"}},{"id":2398783,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2022-02-14T10:30:10.000Z","date":"2022-02-10","kind":"grant","acquired":true,"shares":5200,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":5200,"derivative":{"underlying":"Class A Common Stock","underlying_shares":5200},"source":{"system":"sec-edgar","filing":"0001209191-22-009077","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919122009077/doc4.xml","form_type":"4"}},{"id":2533943,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2021-10-27T13:11:30.000Z","date":"2021-10-25","kind":"exercise","acquired":false,"shares":2225,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2225},"source":{"system":"sec-edgar","filing":"0001209191-21-061776","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121061776/doc4.xml","form_type":"4"}},{"id":2533942,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2021-10-27T13:11:30.000Z","date":"2021-10-25","kind":"sale","acquired":false,"shares":668,"price":96.47,"value":64441.96,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was to satisfy the reporting person's tax withholding obligations above the statutory withholding rate and was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2021."}],"balance_after":7928,"source":{"system":"sec-edgar","filing":"0001209191-21-061776","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121061776/doc4.xml","form_type":"4"}},{"id":2533941,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2021-10-27T13:11:30.000Z","date":"2021-10-25","kind":"tax_withholding","acquired":false,"shares":1324,"price":97.1,"value":128560.4,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":8596,"source":{"system":"sec-edgar","filing":"0001209191-21-061776","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121061776/doc4.xml","form_type":"4"}},{"id":2533940,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2021-10-27T13:11:30.000Z","date":"2021-10-25","kind":"exercise","acquired":true,"shares":2225,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":9920,"source":{"system":"sec-edgar","filing":"0001209191-21-061776","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121061776/doc4.xml","form_type":"4"}},{"id":2542657,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2021-10-14T12:28:41.000Z","date":"2021-10-13","kind":"grant","acquired":true,"shares":1010,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units vest as follows:  505 on October 13, 2022 and 505 on October 13, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units vest as follows:  505 on October 13, 2022 and 505 on October 13, 2023."}],"balance_after":1010,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1010},"source":{"system":"sec-edgar","filing":"0001209191-21-060451","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121060451/doc4.xml","form_type":"4"}},{"id":2542656,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2021-10-14T12:28:41.000Z","date":"2021-10-13","kind":"grant","acquired":true,"shares":3030,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units vest as follows:  1,010 on October 13, 2023; 1,010 on October 13, 2024; and 1,010 on October 13, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units vest as follows:  1,010 on October 13, 2023; 1,010 on October 13, 2024; and 1,010 on October 13, 2025."}],"balance_after":3030,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3030},"source":{"system":"sec-edgar","filing":"0001209191-21-060451","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121060451/doc4.xml","form_type":"4"}},{"id":2821561,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2021-03-02T13:11:24.000Z","date":"2021-02-27","kind":"exercise","acquired":false,"shares":1642,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"shares","element":"transactionShares","label":"F4","text":"The reporting person transferred the right to receive 50% of all shares issued upon vesting of restricted stock units granted prior to April 2020 to his former spouse pursuant to a domestic relations order."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The restricted stock units are fully executed."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The restricted stock units are fully executed."}],"balance_after":3283,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1642},"source":{"system":"sec-edgar","filing":"0001209191-21-015671","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121015671/doc4.xml","form_type":"4"}},{"id":2821560,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2021-03-02T13:11:24.000Z","date":"2021-03-01","kind":"sale","acquired":false,"shares":493,"price":48.98,"value":24147.14,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The sale of shares was to satisfy the reporting person's tax withholding obligations above the statutory withholding rate and was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2021."}],"balance_after":7695,"source":{"system":"sec-edgar","filing":"0001209191-21-015671","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121015671/doc4.xml","form_type":"4"}},{"id":2821559,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2021-03-02T13:11:24.000Z","date":"2021-02-27","kind":"tax_withholding","acquired":false,"shares":1059,"price":47.92,"value":50747.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":8188,"source":{"system":"sec-edgar","filing":"0001209191-21-015671","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121015671/doc4.xml","form_type":"4"}},{"id":2821558,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2021-03-02T13:11:24.000Z","date":"2021-02-27","kind":"exercise","acquired":true,"shares":1642,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":9247,"source":{"system":"sec-edgar","filing":"0001209191-21-015671","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121015671/doc4.xml","form_type":"4"}},{"id":2830231,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2021-02-26T14:09:29.000Z","date":"2021-02-25","kind":"grant","acquired":true,"shares":9450,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units vest in three equal annual installments beginning on the first anniversary of the grant date."}],"balance_after":9450,"derivative":{"underlying":"Class A Common Stock","underlying_shares":9450},"source":{"system":"sec-edgar","filing":"0001209191-21-014625","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919121014625/doc4.xml","form_type":"4"}},{"id":2961318,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"disposition_to_issuer","acquired":false,"shares":750,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 30, 2017, the reporting person received a grant of restricted stock units that vested on November 30, 2020 based on the volume weighted average price of a share over any period of 45 consecutive days during the three-year performance period.  The award achieved 71.17% of target, resulting in the vesting of 1,850 restricted stock units and the forfeiture of 750 restricted stock units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On November 30, 2017, the reporting person received a grant of restricted stock units that vested on November 30, 2020 based on the volume weighted average price of a share over any period of 45 consecutive days during the three-year performance period.  The award achieved 71.17% of target, resulting in the vesting of 1,850 restricted stock units and the forfeiture of 750 restricted stock units."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":750},"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}},{"id":2961317,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"exercise","acquired":false,"shares":1850,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On November 30, 2017, the reporting person received a grant of restricted stock units that vested on November 30, 2020 based on the volume weighted average price of a share over any period of 45 consecutive days during the three-year performance period.  The award achieved 71.17% of target, resulting in the vesting of 1,850 restricted stock units and the forfeiture of 750 restricted stock units."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On November 30, 2017, the reporting person received a grant of restricted stock units that vested on November 30, 2020 based on the volume weighted average price of a share over any period of 45 consecutive days during the three-year performance period.  The award achieved 71.17% of target, resulting in the vesting of 1,850 restricted stock units and the forfeiture of 750 restricted stock units."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Since the date of the reporting person's last Form 4 the reporting person transferred 4,480 shares of Class A Common Stock and (ii) the right to receive 50% of all shares issued upon vesting of his restricted stock units to his former spouse pursuant to a domestic relations order.  Such securities are no longer beneficially owned by the reporting person."}],"balance_after":750,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1850},"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}},{"id":2961316,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Restricted Stock Units","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"exercise","acquired":false,"shares":2600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The restricted stock units are fully vested."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Since the date of the reporting person's last Form 4 the reporting person transferred 4,480 shares of Class A Common Stock and (ii) the right to receive 50% of all shares issued upon vesting of his restricted stock units to his former spouse pursuant to a domestic relations order.  Such securities are no longer beneficially owned by the reporting person."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2600},"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}},{"id":2961315,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"tax_withholding","acquired":false,"shares":551,"price":33.44,"value":18425.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":7605,"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}},{"id":2961314,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"exercise","acquired":true,"shares":1850,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."}],"balance_after":8156,"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}},{"id":2961313,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"tax_withholding","acquired":false,"shares":774,"price":33.44,"value":25882.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"These shares were withheld by the Company to satisfy the reporting person's tax withholding obligations."}],"balance_after":6306,"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}},{"id":2961312,"issuer":{"id":84161,"kind":"organization","name":"ARCH RESOURCES, INC.","symbol":"ARCH"},"owners":[{"id":65141,"kind":"person","name":"Slone Deck","position":1,"cik":"0001335025","reported_name":"Slone Deck","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP - Strategy & Public Pol"}}],"security":"Common Stock","published_at":"2020-12-02T15:49:32.000Z","date":"2020-11-30","kind":"exercise","acquired":true,"shares":2600,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock of Arch Resources, Inc. (the \"Company\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Since the date of the reporting person's last Form 4 the reporting person transferred 4,480 shares of Class A Common Stock and (ii) the right to receive 50% of all shares issued upon vesting of his restricted stock units to his former spouse pursuant to a domestic relations order.  Such securities are no longer beneficially owned by the reporting person."}],"balance_after":7080,"source":{"system":"sec-edgar","filing":"0001209191-20-061097","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1037676/000120919120061097/doc4.xml","form_type":"4"}}],"next_cursor":"2020-12-02T15:49:32.000000Z,2961312"}