ModelEdge

Houghton Mifflin Harcourt
0001580156
Filing Type10-K
Filing Date2/23/2022
Updated2/23/22, 11:48 PM

Filing

10-K
Earnings Release

Exhibits

10-KFY 2021
EX-10.34EX-10.34
EX-10.35EX-10.35
EX-10.37EX-10.37
EX-21.1EX-21.1
EX-23.1EX-23.1
EX-31.1EX-31.1
EX-31.2EX-31.2
EX-32.1EX-32.1
EX-32.2EX-32.2
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