| Date | Event |
| 24-Nov-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 20-Nov-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 5-Nov-09 | BEACON POWER CORP Files SEC form 8-K, Results of Operations and Financial Condition, Other Events, Financial Statemen |
| 4-Nov-09 | BEACON POWER CORP Files SEC form 10-Q, Quarterly Report |
| 20-Oct-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 5-Oct-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 25-Sep-09 | BEACON POWER CORP Files SEC form 8-K, Other Events |
| 21-Sep-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 18-Sep-09 | BEACON POWER CORP Files SEC form 8-K, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; |
| 8-Sep-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 20-Aug-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 7-Aug-09 | BEACON POWER CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibit |
| 6-Aug-09 | BEACON POWER CORP Files SEC form 10-Q, Quarterly Report |
| 5-Aug-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 20-Jul-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 6-Jul-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 2-Jul-09 | BEACON POWER CORP Files SEC form 8-K, Other Events |
| 22-Jun-09 | BEACON POWER CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Material Modification to Rights of |
| 17-Jun-09 | BEACON POWER CORP Files SEC form 8-K, Regulation FD Disclosure |
| 15-Jun-09 | Price hit new 52-week high ($1.09) |
| 11-Jun-09 | BEACON POWER CORP Files SEC form 8-K, Regulation FD Disclosure, Other Events, Financial Statements and Exhibits |
| 20-May-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 12-May-09 | BEACON POWER CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibit |
| 11-May-09 | BEACON POWER CORP Files SEC form 10-Q, Quarterly Report |
| 30-Apr-09 | BEACON POWER CORP Files SEC form 8-K, Other Events |
| 20-Apr-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 9-Apr-09 | BEACON POWER CORP Files SEC form 8-K, Change in Directors or Principal Officers |
| 20-Mar-09 | BEACON POWER CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 16-Mar-09 | BEACON POWER CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibit |
| 16-Mar-09 | BEACON POWER CORP Files SEC form 10-K, Annual Report |
| 3-Mar-09 | Price hit new 52-week low ($0.32) |
| 26-Feb-09 | BEACON POWER CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 20-Feb-09 | BEACON POWER CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Material Modification to Rights of |
| 3-Feb-09 | BEACON POWER CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 28-Jan-09 | BEACON POWER CORP Files SEC form 8-K, Other Events |
| 27-Jan-09 | BEACON POWER CORP Files SEC form 8-K, Termination of a Material Definitive Agreement, Other Events, Financial Stateme |
| 8-Jan-09 | Price hit new 52-week low ($0.46) |
| 22-Dec-08 | BEACON POWER CORP Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exhibits |
| 2-Dec-08 | Price hit new 52-week low ($0.52) |
| 21-Nov-08 | BEACON POWER CORP Files SEC form 8-K, Other Events |
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