| Date | Time | Source | Headline | Symbol | Company |
| 18/05/2012 | 11:18 | Edgar (US Regulatory) | Post-Effective Amendment to an S-8 filing (S-8 POS) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 22:05 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 22:00 | Edgar (US Regulatory) | (25-NSE) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:55 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:53 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:51 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:48 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:42 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:40 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 21:38 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 17/05/2012 | 17:50 | Business Wire | Archipelago Learning Closes Merger Agreement with PLATO® Learning | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 16/05/2012 | 18:49 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 16/05/2012 | 18:45 | Business Wire | Archipelago Learning Shareholders Approve Merger Agreement with PLATO® Learning | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 14/05/2012 | 11:05 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 10/05/2012 | 18:07 | Edgar (US Regulatory) | Quarterly Report (10-Q) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 08/05/2012 | 21:10 | Edgar (US Regulatory) | Current report filing (8-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 08/05/2012 | 21:05 | Business Wire | Archipelago Learning Announces Financial Results for First Quarter 2012 | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 30/04/2012 | 22:30 | Edgar (US Regulatory) | Amended Annual Report (10-K/A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 26/04/2012 | 21:05 | Business Wire | Archipelago Learning Announces First Quarter 2012 Earnings Release Date | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 20/04/2012 | 20:45 | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 13/04/2012 | 21:02 | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (definitive) (DEFM14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 02/04/2012 | 18:04 | Business Wire | Rigrodsky & Long, P.A. Announces Investigation of Archipelago Learning, Inc. Takeover | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 30/03/2012 | 21:13 | Edgar (US Regulatory) | Amended Statement of Ownership (SC 13G/A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 30/03/2012 | 21:10 | Edgar (US Regulatory) | Amended Statement of Ownership (SC 13G/A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 27/03/2012 | 11:13 | Edgar (US Regulatory) | Proxy Statement - Merger or Acquistion (preliminary) (PREM14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 26/03/2012 | 21:34 | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 26/03/2012 | 16:27 | 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 | 18:32 | Business Wire | Faruqi & Faruqi, LLP Answers Questions Regarding the Acquisition of Archipelago Learning, Inc. | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 15/03/2012 | 17:05 | Edgar (US Regulatory) | Annual Report (10-K) | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |
| 12/03/2012 | 20:36 | Marketwired | Shareholder Class Action Lawsuit Filed Seeking More Money, Information for Archipelago Learning Stockholders, Announces Goldf... | NASDAQ:ARCL | Archipelago Learning, Inc. (MM) |