KLEIN ROSEMARY L

PrivateCIK: 1310202
Location

ST. LOUIS, MO

KLEIN ROSEMARY L (SVP, CLO & Corp. Sec.) sold 21.8% of their position (15K shares) of CORE NATURAL RESOURCES, INC. on the open market

Open‑market sale worth $1.60M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderKLEIN ROSEMARY LCIK 1310202
Officer· SVP, CLO & Corp. Sec.
Since Feb 2026
-15K
Net shares
Net seller
$1.60M
Total sold
2
Open market trades
0B · 2S
2
Total transactions
15K disposed
Non-Derivative Transactions2

Common stock, par value $0.01 per share

Direct
S · Sale

Shares

10K

Price / share

$105.00

Trade value

$1.05M

% of position

14.6%
3/19/2026
68.68K58.68K

Common stock, par value $0.01 per share

Direct
S · Sale

Shares

5K

Price / share

$110.62

Trade value

$553.10K

% of position

8.5%
3/19/2026
58.68K53.68K
Total

Net shares

15K

Net value

-$1.60M

Derivative Transactions0
No derivative transactions reported
KLEIN ROSEMARY L — Insider Transaction (Form 4) Filed Mar 20, 2026 | Finecho