Live feed19:11:33·1553dINSIDERFilingvia QuantisnowSEC Form 4: Fields Matthew M. converted options into 12,668 shares and covered exercise/tax liability with 5,027 shares, increasing direct ownership by 12% to 70,782 units (tax withholding)ByQuantisnow·Wall Street's wire, on your screen.HMHC· Houghton Mifflin Harcourt CompanyMiscellaneousOriginal source