CNR
Core Natural Resources, Inc. · Mining
Insiders sold $6.7M net in the last 90 days ·4 sellers, 0 buyers· latest Form 4 filed Mar 20, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$7.6M
reported sales (SEC code S)
Unique Insiders
4
in the rolling window
Latest filing
May 1, 2026
Klein Rosemary L
Core Natural Resources, Inc. (CNR) has 27 SEC Form 4 filings (46 transaction rows) in the rolling window, disclosed by 4 distinct insiders. Most recent filing: May 1, 2026.
Inside the rolling window, 4 insiders at Core Natural Resources, Inc. reported no open-market purchases and 9 open-market sales totaling $7.6M. The most active filer is Chief Accounting Officer Rothka John with 5 filings. Insiders have net sold $6.7M over the trailing 6 months. The most recent open-market filing is a sale of 15,000 shares by SVP, CLO & Corp. Sec. Klein Rosemary L, dated Mar 19, 2026, worth $1.6M.
- Industry:Coal
- CEO:James A. Brock
- Employees:4,850
- HQ:Canonsburg, PA, US
- IPO:2017-11-14
| Source | |||||||
|---|---|---|---|---|---|---|---|
Klein Rosemary LFirst filing | SVP, CLO & Corp. Sec. | Sale | 15,000 | $1.6M | Mar 20 | -25.6% | SEC ↗ |
| Chief Accounting Officer | Sale | 1,000 | $98K | Mar 19 | -25.5% | SEC ↗ | |
Brock James AFirst filing | Executive Chair and CEO | Sale | 40,760 | $4.1M | Mar 19 | -25.5% | SEC ↗ |
Rothka JohnFirst in 5 months | Chief Accounting Officer | Sale | 3,800 | $348K | Mar 11 | -16.8% | SEC ↗ |
NAVARRE RICHARD AFirst in 6 months | Director | Sale | 6,000 | $550K | Mar 11 | -16.8% | SEC ↗ |
| Chief Accounting Officer | Sale | 1,000 | $95K | Oct 10 | -17.4% | SEC ↗ | |
| Chief Accounting Officer | Sale | 1,000 | $100K | Oct 10 | -17.4% | SEC ↗ | |
Rothka JohnFirst filing | Chief Accounting Officer | Sale | 2,500 | $225K | Oct 6 | -9.8% | SEC ↗ |
NAVARRE RICHARD AFirst filing | Director | Sale | 5,000 | $411K | Sep 26 | -3.7% | SEC ↗ |
Earnings: last 7 quarters
Congress trading CNR 1 all-time
- RSen. Thomas Hawley TubervillePurchase$1,001 - $15,0002021-03-29
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does CNR have?
Core Natural Resources, Inc. (CNR) has 27 SEC Form 4 filings (46 transaction rows) in the rolling 365-day window, disclosed by 4 distinct insiders. Most recent filing: May 1, 2026.
When was the most recent SEC Form 4 filing for CNR?
The most recent Form 4 filing for CNR on Tracefour is dated May 1, 2026.
Who is the most active insider at CNR?
The most active SEC Form 4 filer at CNR in the rolling window is Chief Accounting Officer Rothka John, with 5 filings.
What is the net insider flow at CNR over the last 6 months?
Over the trailing 180 days, insiders at CNR have net sold $6.7M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at CNR in the current window?
Inside the rolling window, insiders at CNR bought $0 and sold $7.6M based on SEC Form 4 filings.
Can I get alerts for CNR insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Core Natural Resources, Inc. (CNR). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Core Natural Resources, Inc. is in the Mining sector.