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SEC insider activity covers quarterly filings through June 30, 2026. Later filings are not included. Reported roles do not establish current employment or current holdings. SEC filing documents, sections and filing-text search cover filings dated January 1, 2000 onward. Earlier filings are deferred until after launch.
Also known as: HOUGHTON MIFFLIN HARCOURT COMPANY
Summary
HOUGHTON MIFFLIN HARCOURT COMPANY is an organization, based in MA. Lobbying activity focuses on Education. Political activity spans from 2025 to 2026.