Insiders / Klein Rosemary L

Klein Rosemary L

CIK 1310202personinsider

Companies

1

First seen

Feb 19, 2026

Last activity

Mar 20, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Core Natural Resources, Inc. · CNR	Executive	53,679	69,910	5	—

All securities held

1 position · latest reported per filing

Company	Security	Shares	As of
Core Natural Resources, Inc.	Common stock, par value $0.01 per share	53,679	Mar 19, 2026

Activity

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Mar 19, 2026	Sell	CNR Core Natural Resources, Inc. Common stock, par value $0.01 per share	$1.05M	-10K -14.56%	58,679 0.12% of shares	medium
Mar 19, 2026	Sell	CNR Core Natural Resources, Inc. Common stock, par value $0.01 per share	$553.1K	-5K -8.52%	53,679 0.11% of shares	medium
Feb 18, 2026	Other	CNR Core Natural Resources, Inc. Common stock, par value $0.01 per share	$66.4K	-746 -1.07%	68,667 0.14% of shares	low
Feb 18, 2026	Other	CNR Core Natural Resources, Inc. Common stock, par value $0.01 per share	$44.2K	-497 -0.71%	69,413 0.14% of shares	low
Feb 17, 2026	Grant	CNR Core Natural Resources, Inc. Common stock, par value $0.01 per share	$0	+5K +7.80%	69,910 0.14% of shares	low