Core Natural Resources, Inc. insider trading
Every open-market purchase and sale by Core Natural Resources, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.
| Date | Insider | Trade | Shares | Price | Value | 1M after | 3M after | 6M after |
|---|
Does following Core Natural Resources, Inc.’s insiders pay?
From December 12, 2017 to March 20, 2026, 14 insiders reported 5 open-market purchases and 27 sales not made under a pre-set plan in Core Natural Resources, Inc. Twelve months after each purchase was reported, the shares were −0.9% against the S&P 500 on average (median +13.2%), over 5 purchases with a full year of prices; 60% beat the index. After sales, the shares moved +8.1% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on December 13, 2017 into $16,891 by November 2, 2026, +6.1% a year. It held shares 39% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $21,026 (+8.8% a year), and held throughout $32,549 (+14.3%).
| Insider | Role | Purchases | 12 months after their purchases | Beat the S&P 500 | Sales | 12 months after their sales | Latest report |
|---|---|---|---|---|---|---|---|
| Mills John T | Director | 3 | −0.9% (3) | 67% | 5 | +34.9% (5) | August 16, 2023 |
| Rothka John | Chief Accounting Officer | 0 | — | — | 5 | +6.0% (3) | March 19, 2026 |
| Wiegand Martha A | General Counsel & Secretary | 0 | — | — | 4 | +13.1% (4) | August 14, 2023 |
| Brock James A | Executive Chair and CEO | 0 | — | — | 2 | +10.9% (1) | March 19, 2026 |
| Navarre Richard A | Director | 0 | — | — | 2 | −14.7% (1) | March 11, 2026 |
| Platt Joseph P Jr | Director | 0 | — | — | 2 | −13.6% (2) | September 19, 2023 |
| Salvatori Kurt R. | Chief Administrative Officer | 0 | — | — | 2 | +0.4% (2) | August 14, 2023 |
| Bergeron Sophie | Director | 0 | — | — | 1 | +25.6% (1) | May 12, 2022 |
| Klein Rosemary L | SVP, CLO & Corp. Sec. | 0 | — | — | 1 | — | March 20, 2026 |
| Koeppel Holly K | Director | 0 | — | — | 1 | +24.1% (1) | April 2, 2025 |
| Kriegshauser Patrick A | Director | 0 | — | — | 1 | +6.3% (1) | September 18, 2025 |
| Lang Paul A | Chief Executive Officer | 1 | −16.0% (1) | 0% | 0 | — | May 12, 2025 |
| Mccaffrey James J. | SVP - Coal Marketing | 0 | — | — | 1 | −93.3% (1) | March 5, 2019 |
| Roberson Ed | Director | 1 | +14.3% (1) | 100% | 0 | — | February 23, 2018 |
When several insiders traded Core Natural Resources, Inc.
Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Core Natural Resources, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 1 buying crowd with six months of prices, it averaged +22.3% against the index. After 3 selling crowds, +2.7%. One company's history is too short to judge by; the test across every company is the better guide.
| Month | Crowd | 3 months on, vs S&P 500 | 6 months | 12 months |
|---|---|---|---|---|
| March 31, 2026 | 4 selling | −40.7% | −35.7% | not yet |
| August 31, 2023 | 3 selling | +22.3% | −9.7% | −12.8% |
| May 31, 2022 | 3 selling | +41.9% | +53.4% | +11.1% |
| February 28, 2018 | 2 buying | +37.0% | +22.3% | +15.9% |
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