CORE NATURAL RESOURCES INC

Ticker: CNR CUSIP: 218937100 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 129,960 Value ($000) $11,503 Avg Close $85.17 Range $74.65 - $102.80

Q3 2025

Shares 157,617 Value ($000) $13,158 Avg Close $74.75 Range $64.40 - $85.49

Q2 2025

Shares 153,926 Value ($000) $10,735 Avg Close $70.86 Range $57.95 - $78.17

Q1 2025

Shares 164,269 Value ($000) $12,665 Avg Close $84.05 Range $66.27 - $109.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	129,960	$11,503	$85.17	$74.65 - $102.80
Q3 2025	157,617	$13,158	$74.75	$64.40 - $85.49
Q2 2025	153,926	$10,735	$70.86	$57.95 - $78.17
Q1 2025	164,269	$12,665	$84.05	$66.27 - $109.02