222 filings
Page 6 of 12
DEFA14A
b7s2vark v0
29 Mar 18
Additional proxy soliciting materials
12:00am
8-K
55b7h
5 Mar 18
Houghton Mifflin Harcourt Appoints Jean S. Desravines to Board of Directors
12:00am
8-K
xnoo924q
22 Feb 18
Houghton Mifflin Harcourt Announces Full Year 2017 Results
12:00am
UPLOAD
47buocnunh8qw6 9c
5 Feb 18
Letter from SEC
12:00am
CORRESP
5pnk 32a4077t
16 Jan 18
Correspondence with SEC
12:00am
UPLOAD
g17f53 zqf7d6iu
3 Jan 18
Letter from SEC
12:00am
CORRESP
0zuy6yax17n cj8q
20 Dec 17
Correspondence with SEC
12:00am
UPLOAD
d79oku s9
12 Dec 17
Letter from SEC
12:00am
8-K
d9hi 65v6e2w03
2 Nov 17
Houghton Mifflin Harcourt Announces Third Quarter 2017 Results
12:00am
8-K
npuyjz
18 Oct 17
Departure of Directors or Certain Officers
12:00am
8-K
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3 Aug 17
Houghton Mifflin Harcourt Announces Second Quarter 2017 Results
12:00am
SD
bwoea
30 May 17
Conflict minerals disclosure
12:00am
8-K
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25 May 17
Departure of Directors or Certain Officers
12:00am
8-K
x5jbam8lu5jsohc
4 May 17
Houghton Mifflin Harcourt Announces First Quarter 2017 Results
12:00am
8-K/A
cow3c44
18 Apr 17
Cost Associated with Exit or Disposal Activities
12:00am
DEFA14A
5me1j1b yh53v641356z
29 Mar 17
Additional proxy soliciting materials
12:00am