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Mason Capital Management LLC

SEC-identified person · CIK 1218735 Identifier-verified

Public-company roles (from insider filings)

CompanyCapacity as filedFilings
Legato Merger Corp. LEGO Officer filed 2021 - 2021
Mason Industrial Technology, Inc. MIT Director filed 2021 - 2021
Babcock & Wilcox Co BWXT Officer filed 2011 - 2014
Clear Channel Outdoor Holdings, Inc. COO Officer filed 2010 - 2013

All roles under one Commission-assigned identifier - the same person by the SEC's own record, not by name matching. From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.