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← US public companies

Simpson Todd E

SEC-identified person · CIK 1216477 Identifier-verified

Public-company roles (from insider filings)

CompanyCapacity as filedFilings
Xencor Inc XNCR Director filed 2025–2025
Seagen Inc. SGEN See Remarks filed 2006–2023
Neurogene Inc. NLTX Director filed 2014–2023

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.