Insiders who reported open-market trades in the last 12 months at the companies Rosemary L. Klein files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
James A. Brock - $4.12M in CNR purchases and sales in the last 12 months
Richard A. Navarre - $550K in CNR purchases and sales in the last 12 months
John Rothka - $446K in CNR purchases and sales in the last 12 months
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Rosemary L. Klein is a corporate insider, tracked as SVP, CLO & Corp. Sec. of Core Natural Resources, Inc. (CNR). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Rosemary L. Klein last file a Form 4?
The most recent primary Form 4 on record is dated 20 March 2026, one of 4 filings going back to 2024.
Has Rosemary L. Klein been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($1.60M) across all tracked filings.
Rosemary L. Klein is SVP, CLO & Corp. Sec. of Core Natural Resources, Inc. (CNR). 4 SEC Form 4 filings on record going back to 2024, most recently on 20 March 2026. Most recent open-market trade: sold $553K of CNR on 20 March 2026. Lifetime open-market sales: $1.60M.
Recent transactions
7
The latest 7 SEC Form 4 transactions reported by Rosemary L. Klein.
InsiderAlpha's records for Rosemary L. Klein go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
