CORE NATURAL RESOURCES INC (CNR) — insider trading
Energy · NYSE
CORE NATURAL RESOURCES INC (CNR) has 10 reported SEC Form 4 insider transactions in our data, including 6 open-market sales among the most recent 10 (latest 2026-04-30).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-04-30 | Doheny Edward L II | Director | Grant / award / vesting | 1,390 | $0.00 | $0 | Form 4 |
| 2026-04-30 | Keating Ronald C | Director | Grant / award / vesting | 1,390 | $0.00 | $0 | Form 4 |
| 2026-03-24 | Brock James A | Director, Officer (Executive Chair and CEO) | Bona fide gift | 24,440 | $0.00 | $0 | Form 4 |
| 2026-03-24 | Brock James A | Director, Officer (Executive Chair and CEO) | Bona fide gift | 24,440 | $0.00 | $0 | Form 4 |
| 2026-03-19 | Klein Rosemary L | Officer (SVP, CLO & Corp. Sec.) | Open-market sale | 5,000 | $110.62 | $553.1K | Form 4 |
| 2026-03-19 | Klein Rosemary L | Officer (SVP, CLO & Corp. Sec.) | Open-market sale | 10,000 | $105.00 | $1.05M | Form 4 |
| 2026-03-18 | Brock James A | Director, Officer (Executive Chair and CEO) | Open-market sale | 40,760 | $101.15 | $4.12M | Form 4 |
| 2026-03-17 | Rothka John | Officer (Chief Accounting Officer) | Open-market sale | 1,000 | $97.66 | $97.7K | Form 4 |
| 2026-03-10 | NAVARRE RICHARD A | Director | Open-market sale | 6,000 | $91.70 | $550.2K | Form 4 |
| 2026-03-10 | Rothka John | Officer (Chief Accounting Officer) | Open-market sale | 3,800 | $91.62 | $348.2K | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: CORE NATURAL RESOURCES INC (CNR).
Last updated 2026-04-30 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.