| Date Filed | Type | Description |
| 06/26/2013 |
25-NSE
| Form 25-NSE - Notification filed by national security exchange to report the removal from listing and registration of matured, redeemed or retired securities |
| 02/12/2013 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals: |
| 02/11/2013 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 06/27/2012 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans |
| 04/27/2012 |
10-K/A
| Annual Report for the period ended December 31, 2011 [amend] |
| 03/23/2012 |
25
| Form 25 - Notification of the removal from listing and registration of matured, redeemed or retired securities |
| 03/14/2012 |
8-K
| Quarterly results |
| 03/13/2012 |
25-NSE
| Form 25-NSE - Notification filed by national security exchange to report the removal from listing and registration of matured, redeemed or retired securities |
| 03/12/2012 |
8-K
| Temporary Suspension of Trading Under Registrant's Employee Benefit Plans, Financial Statements and Exhibits |
| 02/29/2012 |
10-K
| Annual Report for the period ended December 31, 2011 |
| 02/21/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 02/17/2012 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 02/16/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 02/16/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 02/14/2012 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 02/09/2012 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals |
| 02/09/2012 |
SC 13G
| CONSTELLATION ENERGY GROUP INC reports a 5.9% stake in CONSTELLATION ENERGY GROUP INC |
| 02/08/2012 |
SC 13G
| CONSTELLATION ENERGY GROUP INC reports a 5.2% stake in Constellation Energy Group Inc |
| 02/01/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 01/31/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 01/26/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 01/19/2012 |
8-K
| Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 01/17/2012 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/22/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/22/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/21/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/20/2011 |
SC 13D/A
| Form SC 13D - General statement of acquisition of beneficial ownership [amend] |
| 12/20/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/16/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/14/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/06/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 12/06/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 11/29/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
| 11/23/2011 |
425
| Form 425 - Prospectuses and communications, business combinations |
|