CORE NATURAL RESOURCES INC

Ticker: CNR CUSIP: 218937100 Class: Common Stock

PEAK6 LLC's Holding History (CIK: 0001389958)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 798 Value ($000) $71 Avg Close $85.17 Range $74.65 - $102.80

Q1 2025

Shares 6,917 Value ($000) $533 Avg Close $84.05 Range $66.27 - $109.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	798	$71	$85.17	$74.65 - $102.80
Q1 2025	6,917	$533	$84.05	$66.27 - $109.02