{"filings":[{"id":526556,"accession_number":"0001710366-26-000045","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2026-05-19T20:02:02+00:00","items":["1.04"],"status":"ready","headline":"Core Natural Resources receives vacated MSHA imminent danger order at Leer South mine","event_type":"regulatory","confidence":"high","bullets":["Wolf Run Mining LLC subsidiary received 107(a) order on May 13, 2026 for elevated methane at Leer South (Barbour County, WV).","MSHA terminated the order early on May 14, 2026 after corrective actions.","On May 18, 2026, MSHA determined no imminent danger had ever existed and vacated the order.","No production impact or penalties disclosed beyond the reporting requirement."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.1,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":94893,"accession_number":"0001710366-26-000040","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2026-05-07T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"CNR Q1 net income $21M, adj EBITDA $180M; returns $47M to shareholders","event_type":"earnings","confidence":"high","bullets":["Net income $21.0M ($0.41 diluted EPS); revenue $1.1B; adjusted EBITDA $179.9M.","Metallurgical segment coking coal sales 2.1M tons at $122.11/ton; cash cost down 11% QoQ to $92.35/ton.","Free cash flow $55.5M; operating cash flow $119.4M; liquidity $935M including $413M cash.","Repurchased 464,600 shares for $41.9M at avg $90.23; declared $0.10 quarterly dividend payable June 12.","Management expects continued FCF strength, incremental insurance proceeds from Leer South combustion event."],"consensus_eps_estimate":null,"consensus_eps_actual":0.41,"consensus_revenue_estimate":null,"consensus_revenue_actual":1084278000.0,"consensus_period":"2026-Q1","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.7,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":94892,"accession_number":"0001710366-26-000034","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2026-05-04T23:59:59+00:00","items":["1.04"],"status":"ready","headline":"Core Natural Resources subsidiary receives imminent danger order at Mountaineer II mine for methane","event_type":"regulatory","confidence":"high","bullets":["Mingo Logan Coal LLC received a 107(a) order on April 29, 2026 at Mountaineer II mine in Logan County, WV.","Methane levels exceeded 5.0% in intake entry crosscuts and ranged from 1.0% to 2.2% in the center.","Mine personnel took prompt actions to alleviate the condition; MSHA terminated the order the same day.","No injuries or illnesses resulted from the temporary methane accumulation incident."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.3,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":94891,"accession_number":"0001710366-26-000023","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2026-04-30T23:59:59+00:00","items":["5.07","7.01","9.01"],"status":"ready","headline":"Two new directors elected to Core Natural Resources board at annual meeting","event_type":"leadership","confidence":"high","bullets":["Edward L. Doheny II (former CEO of Sealed Air, Joy Global) and Ronald C. Keating (President/CEO of Excelitas Technologies) elected to board.","Both directors elected with overwhelming shareholder support: Doheny 40.8M for, Keating 40.8M for; broker non-votes 4.3M.","Ernst & Young ratified as auditor for FY 2026 (45.1M for, 75k against).","Advisory say-on-pay approved with 40.1M for, 753k against.","All eight incumbent directors re-elected; board composition expands to include Doheny and Keating."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.35,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":107589,"accession_number":"0001710366-26-000005","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2026-02-12T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"Core Natural Resources Q4 net loss $79M, adj. EBITDA $103M; resumes full production at Leer South","event_type":"earnings","confidence":"high","bullets":["Net loss $79M ($1.54 diluted EPS); adjusted EBITDA $103.1M inclusive of $36.4M fire/extinguishment and idle mine costs.","Revenue $1.042B; coal sales: 7.8M tons high-CV thermal, 2.0M met coal, 12.6M PRB.","Leer South longwall resumed late Q4; West Elk completed B-Seam transition – both targeting full rates in 2026.","Signed >38M tons of 2026 delivery commitments; 23.5M tons high-CV thermal, 47.4M PRB, 6.7M coking coal.","Returned $26.8M to shareholders in Q4 ($245.1M in 2025); $0.10 dividend payable March 16, 2026."],"consensus_eps_estimate":null,"consensus_eps_actual":-2.98,"consensus_revenue_estimate":null,"consensus_revenue_actual":4164775000.0,"consensus_period":"2025-FY","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.7,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":107588,"accession_number":"0001710366-26-000002","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2026-01-12T23:59:59+00:00","items":["1.04"],"status":"ready","headline":"Core Natural Resources subsidiary receives imminent danger order at Mountaineer II mine due to elevated methane","event_type":"regulatory","confidence":"high","bullets":["Mingo Logan Coal LLC received a 107(a) order on January 8, 2026 at the Mountaineer II mine in Logan County, West Virginia.","An inspector found elevated methane levels in an isolated section; mine personnel restored acceptable levels promptly.","The Mine Safety and Health Administration terminated the order, and no injuries or illnesses resulted.","Core Natural Resources, Inc. (NYSE: CNR) is the parent company of Mingo Logan Coal LLC."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.4,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":123951,"accession_number":"0001710366-25-000035","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-12-18T23:59:59+00:00","items":["7.01","9.01"],"status":"ready","headline":"Core Natural Resources resumes longwall operations at Leer South mine; West Elk productivity normalizes","event_type":"other_material","confidence":"high","bullets":["Leer South longwall restarted after being idle since Jan 13, 2025 due to combustion-related activity.","Affected area permanently sealed; equipment (209 shields, shearer, etc.) recovered in good condition.","West Elk mine now at consistent productivity levels following B-Seam transition; expects continued improvement.","Company expects significant 2026 step-up from restart, better West Elk conditions, insurance recoveries, and merger synergies."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.65,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":123950,"accession_number":"0001710366-25-000029","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-11-06T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"Core Natural Resources Q3 net income $31.6M, adj. EBITDA $141.2M; returns $24.6M to stockholders","event_type":"earnings","confidence":"high","bullets":["Net income $31.6M ($0.61 diluted EPS); adjusted EBITDA $141.2M; revenue $1,002.5M.","Free cash flow $38.9M; returned $24.6M via buybacks and dividends; $218.3M returned YTD.","Met coal sales 1.9M tons at realized $112.94/ton; cash cost $94.18/ton; Leer South restart delayed by govt shutdown.","High CV thermal realized $59.78/ton; PRB 13.0M tons at $14.09/ton; royalty rate reduction passed to customers.","Liquidity $995.4M; cash $444.7M; board declared $0.10 dividend payable Dec 15 to holders of record Nov 28."],"consensus_eps_estimate":null,"consensus_eps_actual":-1.44,"consensus_revenue_estimate":null,"consensus_revenue_actual":3122310000.0,"consensus_period":"2025-Q3","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.65,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":123949,"accession_number":"0001193125-25-234041","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-10-08T23:59:59+00:00","items":["5.02","7.01","9.01"],"status":"ready","headline":"Core Natural Resources appoints board chair Jimmy Brock as CEO; Paul Lang departs","event_type":"leadership","confidence":"high","bullets":["James A. Brock appointed CEO effective October 6, 2025, succeeding Paul A. Lang.","Paul A. Lang separated as CEO and resigned from board; will provide transition consulting through Dec 31, 2025.","Lang to receive lump sum cash of $7,950,553 plus benefits and RSU settlements per separation agreement.","Brock previously executive chair since Jan 2025; prior CEO of CONSOL Energy before merger with Arch Resources."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.65,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":140621,"accession_number":"0001193125-25-173024","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-08-05T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"Core Natural Resources Q2 net loss $36.6M, adj. EBITDA $144.3M, synergies target raised to $150-170M","event_type":"earnings","confidence":"high","bullets":["Net loss of $36.6M ($0.70 diluted EPS); revenues $1,102.4M; adj. EBITDA $144.3M incl. $21.2M Leer South costs.","Increased annual synergy target to $150M-$170M, ~30% above initial guidance; returned $87.1M to shareholders via buybacks and dividends.","Leer South longwall production resumption delayed to after Oct 2025; expects Q3 fire/idle costs $20-30M, insurance recoveries >$100M.","High CV thermal segment committed 30M tons for 2025 at $60-62/ton realized; PRB fully committed at $14.40/ton.","OBBBA designates met coal as critical material; 2.5% tax credit on production costs from 2026; lower royalty on federal lands."],"consensus_eps_estimate":null,"consensus_eps_actual":-2.06,"consensus_revenue_estimate":null,"consensus_revenue_actual":2119767000.0,"consensus_period":"2025-Q2","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.75,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":140620,"accession_number":"0001193125-25-170639","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-07-31T23:59:59+00:00","items":["1.01","1.02","2.03","9.01"],"status":"ready","headline":"Core Natural Resources enters $250M receivables facility, replaces prior CONSOL facility","event_type":"debt","confidence":"high","bullets":["New $250M receivables financing agreement with PNC Bank; maturity July 27, 2028.","Prior $250M CONSOL Funding facility voluntarily repaid; letters of credit transferred.","Loans accrue at SOFR + 10 bps; drawn fee 2.00% p.a., unused fee 0.60% p.a.","Receivables sold from originators to Arch Resources, then to borrower Core Receivable Company.","Performance guaranty by Core Natural Resources, Inc. in favor of PNC."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.5,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":158334,"accession_number":"0001193125-25-151981","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-06-30T23:59:59+00:00","items":["7.01","9.01"],"status":"ready","headline":"Core Natural Resources updates Leer South restart; delay of up to 4 months, insurance recovery >$100M","event_type":"other_material","confidence":"high","bullets":["Mine re-entered June 10; ventilation restored, longwall components in good condition.","On June 26, elevated CO levels forced evacuation and resealing of affected area.","Plan aims to reposition and restart longwall within next four months (Q4 2025).","Reiterates 2025 coking coal sales volume guidance despite delayed restart.","Expects Leer South-related insurance recoveries in excess of $100 million."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.65,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":158333,"accession_number":"0001193125-25-115451","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-05-08T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"Core Natural Resources Q1 net loss $69.3M; adjusted EBITDA $123.5M; synergy target raised to $125-150M","event_type":"earnings","confidence":"high","bullets":["Net loss $69.3M ($1.38/diluted share) includes $49.2M merger costs and $11.7M debt extinguishment loss.","Adjusted EBITDA $123.5M on revenue $1,017.4M; returned $106.6M via share buybacks ($101.3M for 1.4M shares at $73.52 avg) and quarterly dividend $0.10/share.","Synergy target increased 10% at midpoint to $125-150M annually; Leer South longwall restart on track for mid-2025.","High CV thermal segment sold 7.1M tons, realized $63.18/ton revenue, cash cost $42.78/ton; met coal segment sold 2.3M tons at $98.26/ton realized revenue.","Liquidity $858.3M including $388.5M cash; refinanced tax-exempt bonds to $306.8M at 5.3% weighted rate with extended 10-year term."],"consensus_eps_estimate":null,"consensus_eps_actual":-1.38,"consensus_revenue_estimate":null,"consensus_revenue_actual":1017406000.0,"consensus_period":"2025-Q1","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.75,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":158332,"accession_number":"0001193125-25-107138","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-04-30T23:59:59+00:00","items":["5.07"],"status":"ready","headline":"Core Natural Resources shareholders elect eight directors, ratify auditor, approve say-on-pay at annual meeting","event_type":"other","confidence":"high","bullets":["All eight director nominees elected with 43.6M–43.9M votes for; broker non-votes of ~4.7M.","Ratification of Ernst & Young as auditor for FY2025: 48.6M for, 131k against, 22k abstain.","Advisory vote on 2024 named executive officer compensation approved: 42.4M for, 1.5M against."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.1,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":176715,"accession_number":"0001193125-25-066237","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-03-28T23:59:59+00:00","items":["7.01","8.01","9.01"],"status":"ready","headline":"Core Natural Resources completes $307M tax-exempt bond refinancing at 5.3% avg rate","event_type":"debt","confidence":"high","bullets":["Total bond amount $306.78M ($97.56M PA, $102.865M MD, $106.355M WV) with 10-year maturity, unsecured.","Weighted avg interest rate reduced to 5.3% despite higher rate environment; rates between 5.0% and 5.45%.","Proceeds used to refinance existing CONSOL and Arch bonds and fund solid waste disposal facilities at Bailey Prep, Leer South Mine, and Baltimore terminal.","Transaction 6x oversubscribed with 39 institutional investors; Jefferies and KeyBanc co-lead bookrunners.","Refinancing covers vast majority of Core's debt, enhancing financial flexibility and long-term growth prospects."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.7,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":176714,"accession_number":"0001193125-25-061433","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-03-24T23:59:59+00:00","items":["7.01","9.01"],"status":"ready","headline":"Core Natural Resources posts investor presentation without specific financial details","event_type":"other","confidence":"low","bullets":["Investor presentation posted on March 24, 2025 to company website.","No earnings, guidance, or transaction specifics disclosed in the filing excerpt.","Full presentation available for investor review at corenaturalresources.com."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.0,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":176713,"accession_number":"0001710366-25-000008","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-02-20T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"Core Natural Resources adopts 75% FCF return framework, $1B buyback; Leer South mine on track for mid-2025","event_type":"other_material","confidence":"high","bullets":["Board authorized $1.0B in share repurchases; framework targets ~75% of free cash flow returned to shareholders, primarily via buybacks.","Leer South mine resumed development with continuous miners; longwall production expected mid-2025; equipment largely unaffected.","Synergy capture of $110M-$140M identified; one-third locked in via operational streamlining, coal blending, procurement.","Q4 2024 legacy CONSOL net income $30.8M, adjusted EBITDA $170M; PAMC sold 7.0M tons at avg revenue $63.28/ton, cash cost $36.46/ton.","Liquidity $1.1B at merger close; capex guidance $300M-$330M for 2025; quarterly dividend $0.10/share declared."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.75,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":176712,"accession_number":"0001193125-25-030102","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K","filed_at":"2025-02-20T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"Core Natural Resources files Arch Resources FY2024 audited financials; revenue down 23%, net income down 93%","event_type":"other_material","confidence":"high","bullets":["Arch Resources' 2024 revenue $2.43B vs $3.15B in 2023 (-22.7%).","Net income $32.6M vs $464.0M in 2023 (-93%) on softer coal markets.","Operating cash flow fell to $208.8M from $635.4M in 2023.","Dividends paid $73.8M in 2024 vs $206.1M in 2023; merger-related costs $12.4M.","Arch completed merger of equals with Core Natural Resources on Jan 14, 2025."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.6,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":176709,"accession_number":"0001193125-25-028132","cik":1710366,"company_name":"Core Natural Resources, Inc.","ticker":"CNR","form_type":"8-K/A","filed_at":"2025-02-18T23:59:59+00:00","items":["9.01"],"status":"ready","headline":"Core Natural Resources files amendment to include Arch financials in 8-K","event_type":"other_material","confidence":"low","bullets":["Amendment adds audited Arch financials for 2023, 2022, 2021 and unaudited 2024 nine-month period.","Includes pro forma combined financials as of Sept 30, 2024 and for year ended Dec 31, 2023.","No new material changes; original 8-K merger close on Jan 14, 2025 unchanged."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.1,"daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null}],"next_cursor":null}