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York Charles N II

SEC-identified person · CIK 1655962 Identifier-verified

Public-company roles (from insider filings)

CompanyCapacity as filedFilings
Day One Biopharmaceuticals, Inc. DAWN COO, CFO and Secretary filed 2021–2026
Spyre Therapeutics, Inc. SYRE Chief Financial Officer and VP filed 2016–2020

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.