Type	Name	Date
Merger agreement	Agreement and Plan of Merger, by and among the Parent, the Purchaser and the Company	02/22/2022
Acquisition / asset purchase agreement	ASSET PURCHASE AGREEMENT BY AND AMONG HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY, HOUGHTON MIFFLIN HARCOURT COMPANY AND RIVERSIDE ASSESSMENTS, LLC September 12, 2018	09/12/2018