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MASON CAPITAL MANAGEMENT LLC

AUM: $1.96 B

13-F Portfolio Value: $612.85 M

Last 13-F Filed: Q1 2026

Concentration in top 10: 100%

Stock	Company	% Portfolio	Shares Held	Market Value	Change in Shares	% Change	Quarter End Price	Source
NVRI	ENVIRI CORP	13.98%	4,494,536	$88,182,796	4,494,536	New	$19.62	13F
NVRI	Enviri Corporation	2.85%	1,031,750	$18,004,038	1,031,750	New		13G
JELD	JELD-WEN HOLDING INC	0.15%	776,885	$963,337	776,885	New	$1.24	13F