| Data | Hora | Fonte | Título | Código | Companhia |
| 18/05/2012 | 07:18 | Edgar (US Regulatory) | Post-Effective Amendment to an S-8 filing (S-8 POS) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 18:05 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 18:00 | Edgar (US Regulatory) | (25-NSE) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 17:55 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 13:50 | Business Wire | Archipelago Learning Closes Merger Agreement with PLATO® Learning | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 16/05/2012 | 14:45 | Business Wire | Archipelago Learning Shareholders Approve Merger Agreement with PLATO® Learning | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 10/05/2012 | 14:07 | Edgar (US Regulatory) | Quarterly Report (10-Q) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 08/05/2012 | 17:05 | Business Wire | Archipelago Learning Announces Financial Results for First Quarter 2012 | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 30/04/2012 | 18:30 | Edgar (US Regulatory) | Amended Annual Report (10-K/A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 26/04/2012 | 17:05 | Business Wire | Archipelago Learning Announces First Quarter 2012 Earnings Release Date | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 20/04/2012 | 16:45 | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 13/04/2012 | 17:02 | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (definitive) (DEFM14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 02/04/2012 | 14:04 | Business Wire | Rigrodsky & Long, P.A. Announces Investigation of Archipelago Learning, Inc. Takeover | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 30/03/2012 | 17:13 | Edgar (US Regulatory) | Amended Statement of Ownership (SC 13G/A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 27/03/2012 | 07:13 | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (preliminary) (PREM14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 26/03/2012 | 12:27 | Business Wire | Archipelago Learning's Study Island Introduces Teacher Toolkit to Facilitate Resource Access for Educators | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 21/03/2012 | 15:32 | Business Wire | Faruqi & Faruqi, LLP Answers Questions Regarding the Acquisition of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 15/03/2012 | 14:05 | Edgar (US Regulatory) | Annual Report (10-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 12/03/2012 | 17:36 | Marketwired | Shareholder Class Action Lawsuit Filed Seeking More Money, Information for Archipelago Learning Stockholders, Announces Goldf... | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 10/03/2012 | 14:30 | Business Wire | Law Office of Brodsky & Smith, LLC Announces Investigation of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 09/03/2012 | 13:14 | Marketwired | The Law Firm of Levi & Korsinsky, LLP Notifies Investors of Claims of Breaches of Fiduciary Duty by the Board of Archipelago ... | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 07/03/2012 | 21:11 | PR Newswire (US) | The Law Firm of Levi & Korsinsky, LLP Announces Investigation into Possible Breaches of Fiduciary Duty by the Board of Archip... | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 06/03/2012 | 16:11 | Business Wire | Law Firm Brower Piven Announces Investigation in Connection With the Acquisition of Archipelago Learning, Inc. by Plato Learn... | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 06/03/2012 | 12:47 | Business Wire | Ryan & Maniskas, LLP Announces Investigation of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 06/03/2012 | 06:10 | Zacks | Company News for March 6, 2012 - Corporate Summary | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 05/03/2012 | 20:23 | Business Wire | Robbins Umeda LLP Announces an Investigation of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 05/03/2012 | 16:30 | Business Wire | Holzer Holzer & Fistel, LLC Announces Investigation into the Proposed Buyout of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 05/03/2012 | 16:00 | Business Wire | Faruqi & Faruqi, LLP Announces Investigation of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 05/03/2012 | 15:34 | PR Newswire (US) | Harwood Feffer LLP Announces Investigation of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 05/03/2012 | 14:47 | Business Wire | Pomerantz Law Firm Investigates Claims on Behalf of Investors of Archipelago Learning Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |