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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001564590-21-014568
Filing Date
2021-03-22
Accepted
2021-03-22 16:06:38
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A hmhc-defa14a_20210414.htm DEFA14A 32248
2 GRAPHIC gxqij40ofjsc000001.jpg GRAPHIC 439761
3 GRAPHIC gxqij40ofjsc000002.jpg GRAPHIC 151478
  Complete submission text file 0001564590-21-014568.txt   847334
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.: 21761372
SIC: 2731 Books: Publishing or Publishing & Printing
Office of Manufacturing