CNR
Ball George L., CNR's Director, spent $366.3K of their own money on 25,000 shares at $15, growing their stake 7%.
+$366.3K
25,000 sh @ $15
CNR
Core Natural Resources, Inc.
SEC CIK 1710366
$92.17
+2.2% · 90 days
90-day buys
$0
0 open-market
90-day sells
$0
0 open-market
Net insider flow
+$0
Net buying
Filings shown
5
Most recent
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At a glance
Insiders at CNR have made no open-market trades in the last 90 days — the activity below is grants, option exercises, and other routine filings.
Largest recent trade: Ball George L., CNR's Director, spent $404.4K of their own money on 88,869 shares at $5, growing their stake 46%.
Most active filer: Ball George L., with 5 transactions among the recent filings shown.
Insider transaction history
Form 4 filings for CNR, newest firstCNR
Ball George L., CNR's Director, spent $225K of their own money on 60,000 shares at $4, growing their stake 21%.
+$225K
60,000 sh @ $4
CNR
Ball George L., CNR's Director, spent $12.8K of their own money on 2,877 shares at $4, growing their stake 2%.
+$12.8K
2,877 sh @ $4
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CNR
Ball George L., CNR's Director, spent $37.1K of their own money on 8,254 shares at $4, growing their stake 4%.
+$37.1K
8,254 sh @ $4
CNR
Ball George L., CNR's Director, spent $404.4K of their own money on 88,869 shares at $5, growing their stake 46%.
+$404.4K
88,869 sh @ $5
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About CNR insider activity
This page tracks every recent Form 4 filed for Core Natural Resources, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.
The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.
Frequently asked questions
How often is CNR insider data updated?
Continuously. We read from SEC EDGAR, so new Form 4 filings for Core Natural Resources, Inc. usually appear here within minutes of being accepted by the SEC.
What does "net insider flow" mean?
It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.
Why do some rows show grants or option exercises instead of buys?
Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.
Is this investment advice?
No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.