| 11/12/2008 | Houghton Mifflin Harcourt Announces Formation of K–12 Business Division, Streamlining of Business Operations |
| 10/01/2008 | Houghton Mifflin Harcourt Grants ABC-CLIO Perpetual License to Publish Greenwood Publishing Group Titles |
| 06/02/2008 | Houghton Mifflin Harcourt Completes Sale of College Division to Cengage Learning |
| 12/13/2007 | Houghton Mifflin Company Completes Acquisition of Harcourt Education, Harcourt Trade and Greenwood-Heinemann Divisions from Reed Elsevier, Creating Preeminent K–12 Educational Publisher |
| 12/03/2007 | Houghton Mifflin Company and Education Media and Publishing Group Limited Announce Sale of College Division to Cengage Learning |
| 11/28/2007 | Houghton Mifflin Company and Its Parent, Education Media and Publishing Group Limited, Announces Expiration of Hart-Scott-Rodino Waiting Period to Acquire Harcourt Education, Supplemental and Trade Divisions from Reed Elsevier |
| 07/16/2007 | Houghton Mifflin Company to Acquire Harcourt Education and Harcourt Trade Divisions from Reed Elsevier |
| 12/22/2006 | HM Rivergroup PLC Announces the Completion of the Previously Announced Acquisitions of Houghton Mifflin Company and Riverdeep Holdings Limited |
| 11/29/2006 | HM Rivergroup PLC Announces the Acquisitions of Houghton Mifflin Company and Riverdeep Holdings Limited in $5.0 Billion Combination |
| 11/09/2006 | Houghton Mifflin Company Reports Third Quarter 2006 Results |
| 11/06/2006 | Houghton Mifflin Company Announces Conference Call to Discuss Third Quarter 2006 Results |
| 08/10/2006 | Houghton Mifflin Company Reports Second Quarter 2006 Results |
| 08/04/2006 | Houghton Mifflin Company Announces Conference Call to Discuss Results for Second Quarter and First Six Months of 2006 |
| 05/04/2006 | Houghton Mifflin, LLC and Houghton Mifflin Finance, Inc. Sell $300 Million Floating Rate Senior PIK Notes Due 2011 |
| 05/03/2006 | Houghton Mifflin Company Reports First Quarter 2006 Results |
| 03/16/2006 | Houghton Mifflin Company Reports Results for 2005 |
| 02/24/2006 | Houghton Mifflin to Participate in the Merrill Lynch Annual Internet, Advertising, Information & Education Conference |
| 02/23/2006 | Houghton Mifflin Company Announces Fourth Quarter and Year-end 2005 Results Conference Call |
| 11/09/2005 | Houghton Mifflin Company Announces Third Quarter 2005 Results |
| 10/28/2005 | Houghton Mifflin Company Announces Third Quarter 2005 Results Conference Call |
| 08/10/2005 | Houghton Mifflin Company Announces Second Quarter 2005 Results |
| 08/02/2005 | Houghton Mifflin Company Announces Second Quarter 2005 Results Conference Call |
| 05/10/2005 | HM Publishing Corp. and Houghton Mifflin Company First Quarter 2005 Results |
| 05/03/2005 | Houghton Mifflin Company Announces First Quarter 2005 Results Conference Call |
| 03/09/2005 | Houghton Mifflin Publishing and Houghton Mifflin Company Fourth Quarter and 2004 Annual Results and 2005 Previews |
| 03/04/2005 | Houghton Mifflin Company Announces Fourth Quarter and 2004 Annual Results Conference Call |
| 11/10/2004 | Houghton Mifflin Company Announces Third Quarter 2004 Results |
| 10/29/2004 | Houghton Mifflin Company Announces Third Quarter 2004 Results Conference Call |
| 08/13/2004 | Houghton Mifflin Company Announces Second-Quarter 2004 Results |
| 07/30/2004 | Houghton Mifflin Company Announces Second-Quarter 2004 Results Conference Call |
| 05/12/2004 | Houghton Mifflin Company First Quarter 2004 Results |
| 05/04/2004 | Houghton Mifflin Company Announces First Quarter 2004 Financial Results Conference Call |
| 03/04/2004 | Houghton Mifflin Company Fourth Quarter and 2003 Annual Results and Previews 2004 |
| 02/23/2004 | Houghton Mifflin Company Announces Fourth Quarter and 2003 Annual Results Conference Call |
| 11/14/2003 | Houghton Mifflin Company Announces Results for the Third Quarter 2003 |
| 08/25/2003 | Houghton Mifflin Company Announces Extension of Exchange Offers for 8.250% Senior Notes Due 2011 and 9.875% Senior Subordinated Notes Due 2013 |
| 08/05/2003 | Houghton Mifflin Company Announces New CEO and Second Quarter Results |
| 05/30/2003 | Houghton Mifflin Company Announces Filing of Registration Statement on Form S-4 for Bond Exchange Offer |
| 01/16/2003 | Houghton Mifflin Company Commences Tender Offer and Consent Solicitation for 7.00% Senior Notes Due 2006 |
| 12/31/2002 | Sale of Houghton Mifflin Completed |
