| Data | Ora | Fonte | Titolo | Simbolo | Compagnia |
| 14/02/2023 | 12:25 | Edgar (US Regulatory) | Schedule 13g
(sc 13g/a) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 10/02/2023 | 15:01 | Edgar (US Regulatory) | Statement of Ownership (sc 13g) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 30/08/2022 | 18:00 | PR Newswire (US) | HMH Unveils Major Platform Enhancements to Empower Educators and Engage Students Heading Back-to-School Nationwide | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 18/08/2022 | 16:00 | PR Newswire (US) | New Research Shows Declining Confidence in the Education Profession, With Educators Calling for Connection, Community and Customization | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 04/08/2022 | 15:00 | PR Newswire (US) | HMH Introduces Connected Foundational Skills Solution Combining Explicit Phonics Instruction and 1:1 AI-driven Tutoring | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 26/07/2022 | 17:30 | PR Newswire (US) | HMH Appoints Benita Flucker as Chief Equity and Inclusion Officer | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 21/07/2022 | 21:12 | PR Newswire (US) | ICLE Appoints Dr. Joshua P. Starr as Managing Partner, Concludes Successful Gathering of Thousands of Educators at 30th Annual Model Schools Conference | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 10/06/2022 | 19:47 | PR Newswire (US) | HMH Digital First, Connected Solution Writable with HMH Into Literature Wins in SIIA CODiE Awards | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 09/06/2022 | 15:00 | PR Newswire (US) | HMH Wins "Best Science Learning Solution" Award in 2022 EdTech Breakthrough Awards | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/06/2022 | 15:00 | PR Newswire (US) | The International Center for Leadership in Education Names the 2022 Model Schools, Innovative Districts and Epic Educators; to be Honored at 30th Annual Model Schools Conference | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 21/04/2022 | 21:15 | PR Newswire (US) | HMH Digital Solutions Amira, Waggle and Writable with HMH Into Literature Named Finalists in 2022 CODiE Awards | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 21/04/2022 | 20:31 | Edgar (US Regulatory) | Termination of Registration of a Class of Security Under Section 12(b) (15-12b) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 15/04/2022 | 12:34 | Edgar (US Regulatory) | Notice of Effectiveness (effect) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 12/04/2022 | 00:07 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/04/2022 | 15:03 | Edgar (US Regulatory) | Current Report Filing (8-k) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/04/2022 | 14:57 | Edgar (US Regulatory) | Notification Filed by National Security Exchange to Report the Removal From Listing and Registration of Matured, Redeemed or Retired Securities Initial Filing Amendments (25-nse) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/04/2022 | 13:35 | Edgar (US Regulatory) | Amended Statement of Ownership: Solicitation (sc 14d9/a) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/04/2022 | 13:14 | Edgar (US Regulatory) | Amended Tender Offer Statement by Third Party (sc To-t/a) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/04/2022 | 13:00 | PR Newswire (US) | Houghton Mifflin Harcourt Successfully Completes Sale to Veritas Capital | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 07/03/2022 | 15:30 | Edgar (US Regulatory) | Statement of Ownership: Solicitation (sc 14d9) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 01/03/2022 | 14:00 | GlobeNewswire Inc. | Laughing Water Capital Issues Public Letter to Board and Employees of Houghton Mifflin Harcourt | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 25/02/2022 | 20:53 | Benzinga | This Textbook Company Has A Better 1-Year Return Than Tesla, Ford, Bitcoin, Ethereum, Litecoin And Dogecoin | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 24/02/2022 | 14:50 | Edgar (US Regulatory) | Written Communication by the Subject Company Relating to a Third Party Tender Offer (sc14d9c) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 24/02/2022 | 13:00 | PR Newswire (US) | HMH Announces Fourth Quarter and Full Year 2021 Results | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 24/02/2022 | 12:50 | Edgar (US Regulatory) | Annual Report (10-k) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 22/02/2022 | 14:32 | Edgar (US Regulatory) | Written Communication Relating to an Issuer or Third Party (sc To-c) | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 22/02/2022 | 12:00 | PR Newswire (US) | Houghton Mifflin Harcourt to be Acquired by Veritas Capital | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 14/02/2022 | 20:57 | Edgar (US Regulatory) | Schedule 13g | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 03/02/2022 | 20:00 | PR Newswire (US) | HMH Schedules Conference Call to Discuss Fourth Quarter and Full Year 2021 Results | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |
| 27/01/2022 | 15:30 | PR Newswire (US) | HMH Earns Top Score in Human Rights Campaign Foundation's 2022 Corporate Equality Index | NASDAQ:HMHC | Houghton Mifflin Harcourt Company |