Core Natural Resources, Inc.·4

Mar 19, 5:42 PM ET

Brock James A 4

4 · Core Natural Resources, Inc. · Filed Mar 19, 2026

Research Summary

AI-generated summary of this filing

Updated

Core Natural Resources (CNR) CEO James A. Brock Sells 40,760 Shares

What Happened
James A. Brock, Executive Chair, CEO and director of Core Natural Resources, sold 40,760 shares on March 18, 2026. The transaction generated approximately $4,122,874 at a weighted-average price of $101.15 per share. This was a sale (Form 4 code S) and, per the filing, was made in connection with a long-term estate-planning strategy.

Key Details

  • Transaction date: 2026-03-18; Form 4 filed 2026-03-19 (timely filing).
  • Transaction type: Open-market/private sale (S).
  • Shares sold: 40,760.
  • Price: $101.15 weighted average; sale prices ranged $100.62 to $101.57. Reporting person will provide breakdown by individual trade upon request (per footnote).
  • Proceeds: $4,122,874 (approx.).
  • Shares owned after transaction: 266,975 total reported shares; 44,640 of those are unvested restricted stock units (RSUs).
  • Notable footnotes: F1—sale tied to long-term estate planning; F2—weighted-average price and price range disclosure; F3—unvested RSU component of reported holdings.

Context
Sales by executives can be routine (taxes, diversification, estate planning) and do not by themselves indicate a negative view of the company. The filing discloses the estate-planning purpose and provides a price range for multiple trades; the filer offers to supply the per-trade breakdown to the company, other shareholders, or the SEC upon request.

Insider Transaction Report

Form 4
Period: 2026-03-18
Brock James A
DirectorExecutive Chair and CEO
Transactions
  • Sale

    Common stock, par value $0.01 per share

    [F1][F2]
    2026-03-18$101.15/sh40,760$4,122,874100,000 total(indirect: By SLAT-1)
Holdings
  • Common stock, par value $0.01 per share

    (indirect: By Trust)
    24,440
  • Common stock, par value $0.01 per share

    (indirect: By GRAT-1)
    117,398
  • Common stock, par value $0.01 per share

    [F3]
    266,975
Footnotes (3)
  • [F1]This sale was made in connection with a long-term strategy for estate planning purposes.
  • [F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.62 to $101.57, inclusive. The reporting person undertakes to provide to Core Natural Resources, Inc., any security holder of Core Natural Resources, Inc., 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 ranges set forth in footnote (2) to this Form 4.
  • [F3]Of the 266,975 shares reported, 44,640 shares are unvested restricted stock units.
Signature
/s/ Rosemary L. Klein, Attorney-in-Fact for James A. Brock|2026-03-19

Documents

1 file
  • 4
    ownership.xmlPrimary

    4