Live feed08:00:00·1570dPRReleasevia QuantisnowSignificant Shareholder Prasad Phatak Sends Letter to Houghton Mifflin Harcourt Company Board of Directors Opposing Veritas Capital TransactionByQuantisnow·Wall Street's wire, on your screen.HMHC· Houghton Mifflin Harcourt CompanyMiscellaneous