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← US public companies

Blackman David M

SEC-identified person · CIK 1465427 Identifier-verified

Public-company roles (from insider filings)

CompanyCapacity as filedFilings
Tremont Mortgage Trust TRMT Director · President and CEO filed 2017 - 2020
Office Properties Income Trust OPI Director · Treasurer and CFO filed 2009 - 2020
RMR Group Inc. RMR Exec. VP of the RMR Group LLC filed 2015 - 2020
Select Income Reit SIR Director · President and COO filed 2012 - 2019

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.