CNR

SEC source: 0000950170-25-049520 · ownership.xml · nonDerivative · entry 2

KOEPPEL HOLLY K · CIK 0001210399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,348

F2 · price: Represents shares of common stock sold to cover the Reporting Person's tax liability from the vesting of restricted stock awards previously granted to the Reporting Person that fully vested in connection with the terms of the Agreement and Plan of Merger, dated as of August 20, 2024, by and among Core Natural Resources, Inc. (formerly known as CONSOL Energy Inc.), Mountain Range Merger Sub Inc. and Arch Resources, Inc.

F3 · price: This transaction was executed in multiple trades at prices ranging from $75.45 to $75.90 per share. The price reported above reflects the weighted average purchase price on the date indicated. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares.

F4 · balance_after: Of the 13,348 shares reported, 3,348 are unvested restricted stock units.

SEC source: 0000950170-25-049520 · ownership.xml · nonDerivative · entry 1

KOEPPEL HOLLY K · CIK 0001210399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,392

F1 · price: This transaction was executed in multiple trades at prices ranging from $74.42 to $75.40 per share. The price reported above reflects the weighted average purchase price on the date indicated. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares.

F2 · price: Represents shares of common stock sold to cover the Reporting Person's tax liability from the vesting of restricted stock awards previously granted to the Reporting Person that fully vested in connection with the terms of the Agreement and Plan of Merger, dated as of August 20, 2024, by and among Core Natural Resources, Inc. (formerly known as CONSOL Energy Inc.), Mountain Range Merger Sub Inc. and Arch Resources, Inc.

SEC source: 0000950170-25-024384 · ownership.xml · nonDerivative · entry 2

KRIEGSHAUSER PATRICK A · CIK 0001046085 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,391

F2 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3 · balance_after: Of the 26,391 shares reported, 3,348 are unvested restricted stock units.

SEC source: 0000950170-25-024384 · ownership.xml · nonDerivative · entry 1

KRIEGSHAUSER PATRICK A · CIK 0001046085 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,717

F1 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0000950170-25-024396 · ownership.xml · nonDerivative · entry 2

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,624

F2 · shares: 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.

F3 · balance_after: Of the 12,624 shares reported, 6,404 are unvested restricted stock units.

SEC source: 0000950170-25-024396 · ownership.xml · nonDerivative · entry 1

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,422

F1 · shares: 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.

SEC source: 0000950170-25-024382 · ownership.xml · nonDerivative · entry 2

Pan Cassandra Chia-Wei · CIK 0001970736 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,707

F2 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3 · balance_after: 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 terms of the Merger Agreement, each restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share, of the Company covered by such award.

F4 · balance_after: Of the 7,707 shares reported, 3,348 are unvested restricted stock units (including dividend equivalent rights) and 4,359 are vested deferred stock units (including dividend equivalent rights).

SEC source: 0000950170-25-024382 · ownership.xml · nonDerivative · entry 1

Pan Cassandra Chia-Wei · CIK 0001970736 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,033

F1 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0000950170-25-024366 · ownership.xml · nonDerivative · entry 1

Rothka John · CIK 0001713960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,807

F1 · shares: 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.

F2 · balance_after: Of the 13,807 shares reported, 828 are unvested restricted stock units.

SEC source: 0000950170-25-024398 · ownership.xml · nonDerivative · entry 2

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 535,775

F2 · shares: 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.

F3 · balance_after: Of the 535,775 shares reported, 40,192 are unvested restricted stock units.

SEC source: 0000950170-25-024398 · ownership.xml · nonDerivative · entry 1

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 515,679

F1 · shares: 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.

SEC source: 0000950170-25-024387 · ownership.xml · nonDerivative · entry 2

KOEPPEL HOLLY K · CIK 0001210399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,163

F2 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3 · balance_after: Of the 22,163 shares reported, 3,348 are unvested restricted stock units.

SEC source: 0000950170-25-024387 · ownership.xml · nonDerivative · entry 1

KOEPPEL HOLLY K · CIK 0001210399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,489

F1 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0000950170-25-024394 · ownership.xml · nonDerivative · entry 2

NAVARRE RICHARD A · CIK 0001213886 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,830

F2 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3 · balance_after: Of the 26,830 shares reported, 4,576 are unvested restricted stock units.

SEC source: 0000950170-25-024394 · ownership.xml · nonDerivative · entry 1

NAVARRE RICHARD A · CIK 0001213886 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,542

F1 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0000950170-25-024352 · ownership.xml · nonDerivative · entry 2

Klein Rosemary L · CIK 0001310202 · SVP, CLO & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,850

F2 · shares: 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.

F3 · balance_after: Of the 64,850 shares reported, 10,248 are unvested restricted stock units.

SEC source: 0000950170-25-024352 · ownership.xml · nonDerivative · entry 1

Klein Rosemary L · CIK 0001310202 · SVP, CLO & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,726

F1 · shares: 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.

SEC source: 0000950170-25-024359 · ownership.xml · nonDerivative · entry 2

Slone Deck · CIK 0001335025 · SVP, Strategy & Public Policy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,365

F2 · shares: 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.

F3 · balance_after: Of the 66,365 shares reported, 10,048 are unvested restricted stock units.

SEC source: 0000950170-25-024359 · ownership.xml · nonDerivative · entry 1

Slone Deck · CIK 0001335025 · SVP, Strategy & Public Policy

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,341

F1 · shares: 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.

SEC source: 0000950170-25-024406 · ownership.xml · nonDerivative · entry 2

Lang Paul A · CIK 0001382977 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 333,562

F2 · shares: 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.

F3 · balance_after: Of the 333,562 shares reported, 40,192 are unvested restricted stock units.

SEC source: 0000950170-25-024406 · ownership.xml · nonDerivative · entry 1

Lang Paul A · CIK 0001382977 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 313,466

F1 · shares: 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.

SEC source: 0000950170-25-024350 · ownership.xml · nonDerivative · entry 2

Platt Joseph P JR · CIK 0001399967 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,038

F2 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3 · balance_after: 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 terms of the Merger Agreement, each restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share, of the Company covered by such award.

F4 · balance_after: Of the 39,038 shares reported, 3,348 are unvested restricted stock units (including dividend equivalent rights).

SEC source: 0000950170-25-024350 · ownership.xml · nonDerivative · entry 1

Platt Joseph P JR · CIK 0001399967 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,364

F1 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0000950170-25-024356 · ownership.xml · nonDerivative · entry 2

Schuller George John JR · CIK 0001702125 · SVP, Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,590

F2 · shares: 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.

F3 · balance_after: Of the 21,590 shares reported, 14,994 are unvested restricted stock units.

SEC source: 0000950170-25-024356 · ownership.xml · nonDerivative · entry 1

Schuller George John JR · CIK 0001702125 · SVP, Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,093

F1 · shares: 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.

SEC source: 0000950170-25-024392 · ownership.xml · nonDerivative · entry 2

Perera Valli · CIK 0001970886 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,707

F2 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3 · balance_after: 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 terms of the Merger Agreement, each restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share, of the Company covered by such award.

F4 · balance_after: Of the 7,707 shares reported, 3,348 are unvested restricted stock units (including dividend equivalent rights) and 4,359 are vested deferred stock units (including dividend equivalent rights).

SEC source: 0000950170-25-024392 · ownership.xml · nonDerivative · entry 1

Perera Valli · CIK 0001970886 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,033

F1 · shares: Represents a grant of restricted stock units pursuant to the Issuer's Omnibus Performance Incentive Plan, which vest on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0000950170-25-024401 · ownership.xml · nonDerivative · entry 2

Thakkar Miteshkumar · CIK 0001799593 · President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,956

F2 · shares: 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.

F3 · balance_after: Of the 54,956 shares reported, 16,956 are unvested restricted stock units.

SEC source: 0000950170-25-024401 · ownership.xml · nonDerivative · entry 1

Thakkar Miteshkumar · CIK 0001799593 · President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,478

F1 · shares: 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.

SEC source: 0000950170-25-024375 · ownership.xml · nonDerivative · entry 2

Salvatori Kurt R. · CIK 0001717472 · SVP, Chief Admin. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,913

F2 · shares: 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.

F3 · balance_after: Of the 20,913 shares reported, 9,646 are unvested restricted stock units.

SEC source: 0000950170-25-024375 · ownership.xml · nonDerivative · entry 1

Salvatori Kurt R. · CIK 0001717472 · SVP, Chief Admin. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,090

F1 · shares: 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.

SEC source: 0000950170-25-006376 · ownership.xml · nonDerivative · entry 1

KRIEGSHAUSER PATRICK A · CIK 0001046085 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,043

F1 · shares: 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.

F2 · shares: (Continued from footnote 1) In addition, at the Effective Time, each restricted stock unit award and performance-based restricted stock unit award of Arch held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into shares of common stock, par value $0.01 per share, of the Company in accordance with the terms of the Merger Agreement. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

SEC source: 0000950170-25-006387 · ownership.xml · nonDerivative · entry 5

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,220

F6 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of restricted stock units previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006387 · ownership.xml · nonDerivative · entry 4

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,368

F4 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of PSUs previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006387 · ownership.xml · nonDerivative · entry 3

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,894

F1 · shares: 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 terms of the Merger Agreement, each (i) restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share,

F2 · shares: (Continued from footnote 1) of the Company covered by such award and (ii) each performance stock unit ("PSU") of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into the number of shares of common stock, par value $0.01 per share, of the Company covered by such award based on the greater of actual performance and target performance. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

F5 · shares: The Reporting Person's shares of common stock, par value $0.01 per share, of the Company were earned pursuant to the PSUs of the Company granted on February 6, 2024. The Compensation Committee of the Board of Directors certified the results on 01/13/2025, which resulted in 100.00% of the common stock being paid out for each of the PSUs at the Effective Time.

SEC source: 0000950170-25-006387 · ownership.xml · nonDerivative · entry 2

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,684

F4 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of PSUs previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006387 · ownership.xml · nonDerivative · entry 1

Braithwaite Robert J. Jr. · CIK 0002052440 · SVP, Marketing & Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,164

F1 · shares: 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 terms of the Merger Agreement, each (i) restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share,

F2 · shares: (Continued from footnote 1) of the Company covered by such award and (ii) each performance stock unit ("PSU") of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into the number of shares of common stock, par value $0.01 per share, of the Company covered by such award based on the greater of actual performance and target performance. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

F3 · shares: The Reporting Person's shares of common stock, par value $0.01 per share, of the Company were earned pursuant to the PSUs of the Company granted on February 7, 2023. The Compensation Committee of the Board of Directors certified the results on 01/13/2025, which resulted in 123.20% of the common stock being paid out for each of the PSUs at the Effective Time.

SEC source: 0000950170-25-006357 · ownership.xml · nonDerivative · entry 5

Rothka John · CIK 0001713960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,979

F6 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of restricted stock units previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006357 · ownership.xml · nonDerivative · entry 4

Rothka John · CIK 0001713960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,828

F4 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of PSUs previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006357 · ownership.xml · nonDerivative · entry 3

Rothka John · CIK 0001713960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,975

F1 · shares: 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 terms of the Merger Agreement, each (i) restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share,

F2 · shares: (Continued from footnote 1) of the Company covered by such award and (ii) each performance stock unit ("PSU") of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into the number of shares of common stock, par value $0.01 per share, of the Company covered by such award based on the greater of actual performance and target performance. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

F5 · shares: The Reporting Person's shares of common stock, par value $0.01 per share, of the Company were earned pursuant to the PSUs of the Company granted on February 6, 2024. The Compensation Committee of the Board of Directors certified the results on 01/13/2025, which resulted in 100.00% of the common stock being paid out for each of the PSUs at the Effective Time.

SEC source: 0000950170-25-006357 · ownership.xml · nonDerivative · entry 2

Rothka John · CIK 0001713960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,460

F4 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of PSUs previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006357 · ownership.xml · nonDerivative · entry 1

Rothka John · CIK 0001713960 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,600

F1 · shares: 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 terms of the Merger Agreement, each (i) restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share,

F2 · shares: (Continued from footnote 1) of the Company covered by such award and (ii) each performance stock unit ("PSU") of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into the number of shares of common stock, par value $0.01 per share, of the Company covered by such award based on the greater of actual performance and target performance. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

F3 · shares: The Reporting Person's shares of common stock, par value $0.01 per share, of the Company were earned pursuant to the PSUs of the Company granted on February 7, 2023. The Compensation Committee of the Board of Directors certified the results on 01/13/2025, which resulted in 123.20% of the common stock being paid out for each of the PSUs at the Effective Time.

SEC source: 0000950170-25-006378 · ownership.xml · nonDerivative · entry 5

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 495,583

F6 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of restricted stock units previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006378 · ownership.xml · nonDerivative · entry 4

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 527,154

F4 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of PSUs previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006378 · ownership.xml · nonDerivative · entry 3

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 532,442

F1 · shares: 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 terms of the Merger Agreement, each (i) restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share,

F2 · shares: (Continued from footnote 1) of the Company covered by such award and (ii) each performance stock unit ("PSU") of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into the number of shares of common stock, par value $0.01 per share, of the Company covered by such award based on the greater of actual performance and target performance. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

F5 · shares: The Reporting Person's shares of common stock, par value $0.01 per share, of the Company were earned pursuant to the PSUs of the Company granted on February 6, 2024. The Compensation Committee of the Board of Directors certified the results on 01/13/2025, which resulted in 100.00% of the common stock being paid out for each of the PSUs at the Effective Time.

SEC source: 0000950170-25-006378 · ownership.xml · nonDerivative · entry 2

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 520,910

F4 · shares: Represents shares of common stock withheld to satisfy the Reporting Person's tax liability from the vesting of PSUs previously granted to the Reporting Person that fully vested in connection with the terms of the Merger Agreement.

SEC source: 0000950170-25-006378 · ownership.xml · nonDerivative · entry 1

Brock James A · CIK 0001620612 · Director · Executive Chair

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 526,941

F1 · shares: 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 terms of the Merger Agreement, each (i) restricted stock unit award of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested and settled in the number of shares of common stock, par value $0.01 per share,

F2 · shares: (Continued from footnote 1) of the Company covered by such award and (ii) each performance stock unit ("PSU") of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into the number of shares of common stock, par value $0.01 per share, of the Company covered by such award based on the greater of actual performance and target performance. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

F3 · shares: The Reporting Person's shares of common stock, par value $0.01 per share, of the Company were earned pursuant to the PSUs of the Company granted on February 7, 2023. The Compensation Committee of the Board of Directors certified the results on 01/13/2025, which resulted in 123.20% of the common stock being paid out for each of the PSUs at the Effective Time.

SEC source: 0000950170-25-006349 · ownership.xml · nonDerivative · entry 1

KOEPPEL HOLLY K · CIK 0001210399 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,815

F1 · shares: 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.

F2 · shares: (Continued from footnote 1) In addition, at the Effective Time, each restricted stock unit award and performance-based restricted stock unit award of Arch held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into shares of common stock, par value $0.01 per share, of the Company in accordance with the terms of the Merger Agreement. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

SEC source: 0000950170-25-006393 · ownership.xml · nonDerivative · entry 1

NAVARRE RICHARD A · CIK 0001213886 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,254

F1 · shares: 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.

F2 · shares: (Continued from footnote 1) In addition, at the Effective Time, each restricted stock unit award and performance-based restricted stock unit award of Arch held by the Reporting Person that was outstanding immediately prior to the Effective Time fully vested, was cancelled and automatically converted into shares of common stock, par value $0.01 per share, of the Company in accordance with the terms of the Merger Agreement. As such, the number reported consists solely of unrestricted shares of common stock, par value $0.01 per share, of the Company.

SEC source: 0000950170-25-006384 · ownership.xml · nonDerivative · entry 1

Klein Rosemary L · CIK 0001310202 · SVP, CLO & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,602

F1 · shares: 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. In addition, at the Effective Time,

F2 · shares: (Continued from footnote 1) 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.