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James A. Brock

CIK: 0001620612

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (5.6%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (27.8%)

Compensation grants

Other (G, F, J, C, D, …)12 (66.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

Core Natural Resources, Inc. logo
CNR

Core Natural Resources, Inc.

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (18 total)

  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Mar 24, 2026
    Gift(G)
    Indirect
    24.4K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Mar 24, 2026
    Gift(G)
    Direct
    24.4K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Mar 18, 2026
    Sale(S)
    Indirect
    40.8K shares at avg. $101.15$4.1M
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Feb 18, 2026
    Tax Payment(F)
    Direct
    3K shares at avg. $88.96$263K
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Feb 18, 2026
    Tax Payment(F)
    Direct
    4.4K shares at avg. $88.96$395K
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Feb 18, 2026
    Tax Payment(F)
    Direct
    66.4K shares at avg. $88.96$5.9M
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Feb 17, 2026
    Award(A)
    Direct
    21.2K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Nov 13, 2025
    Gift(G)
    Indirect
    140.8K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Nov 13, 2025
    Gift(G)
    Indirect
    140.8K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    May 20, 2025
    Gift(G)
    Indirect
    165.2K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    May 20, 2025
    Gift(G)
    Direct
    165.2K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Feb 18, 2025
    Award(A)
    Direct
    20.1K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Feb 18, 2025
    Award(A)
    Direct
    20.1K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Jan 14, 2025
    Award(A)
    Direct
    11.5K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Jan 14, 2025
    Tax Payment(F)
    Direct
    5.3K shares at avg. $101.95$539K
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Jan 14, 2025
    Tax Payment(F)
    Direct
    31.6K shares at avg. $101.95$3.2M
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Jan 14, 2025
    Award(A)
    Direct
    13.2K shares-
  • Core Natural Resources, Inc. logo
    CNR

    Core Natural Resources, Inc.

    Jan 14, 2025
    Tax Payment(F)
    Direct
    6K shares at avg. $101.95$615K

1-18 of 18

About Brock James A

Brock James A (SEC CIK 0001620612) files insider reports with the SEC as Executive Chair and CEO of Core Natural Resources, Inc. (CNR).

Signal8 holds 8 ownership filings by Brock James A, all Form 4s, filed between Jan 16, 2025 and Mar 25, 2026. Those filings report 18 transactions, from Jan 14, 2025 to Mar 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Brock James A's filings is in CANONSBURG, PA.

Recent filings by Brock James A

  • Mar 24, 2026: Gifts of CNR shares (2 lines, Form 4, code G).
  • Mar 18, 2026: Open-market sale of CNR shares (Form 4, code S).
  • Feb 18, 2026: Tax withholdings of CNR shares (3 lines, Form 4, code F).
  • Feb 17, 2026: Grant or award of CNR shares (Form 4, code A).
  • Nov 13, 2025: Gifts of CNR shares (2 lines, Form 4, code G).

Other insiders filing for Core Natural Resources, Inc. (CNR)

How to read Form 4 transaction codes