James A. Brock, Executive Chair and CEO at Core Natural Resources, Inc. (CNR), sold 40,760 shares at $101.15 ($4.1M) on 2026-03-18, disclosed to the SEC on 2026-03-19.
Open-market sale of $4.1M CNR by Executive Chair and CEO. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| Filing → |
| CEIX | SELL | 2023-12-22 | $1.3M | — | Filing → |
| CEIX | SELL | 2023-12-20 | $976K | — | Filing → |
| CEIX | SELL | 2022-12-05 | $39K | — | Filing → |