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HMHC similar filings
- 18 Apr 22 Houghton Mifflin Harcourt / GLAZER CAPITAL ownership change
- 14 Feb 22 Houghton Mifflin Harcourt / Burgundy Asset Management ownership change
- 10 Feb 22 Houghton Mifflin Harcourt / VANGUARD ownership change
- 3 Feb 22 Houghton Mifflin Harcourt / BlackRock ownership change
- 12 Feb 21 Houghton Mifflin Harcourt / Burgundy Asset Management ownership change
- 14 Feb 20 Beneficial ownership report
- 12 Feb 20 Houghton Mifflin Harcourt Co
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