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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001564590-20-019190
Filing Date
2020-04-28
Accepted
2020-04-28 16:01:20
Documents
1
Effectiveness Date
2020-04-28

Document Format Files

Seq Description Document Type Size
1 DEFA14A hmhc-defa14a_20200428.htm DEFA14A 56870
  Complete submission text file 0001564590-20-019190.txt   57957
Mailing Address 125 HIGH STREET BOSTON MA 02110
Business Address 125 HIGH STREET BOSTON MA 02110 617-351-5000
Houghton Mifflin Harcourt Co (Filer) CIK: 0001580156 (see all company filings)

IRS No.: 271566372 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-36166 | Film No.: 20824858
SIC: 2731 Books: Publishing or Publishing & Printing