| Date | Event |
| 16-Nov-09 | Genzyme Corporation Investor Conference Call to discuss Response Letter on Lumizyme Application scheduled for 12:00 pm ET today |
| 2-Nov-09 | GENZYME CORP Files SEC form 10-Q, Quarterly Report |
| 21-Oct-09 | Genzyme Corporation Earnings Call scheduled for 11:00 am ET today |
| 21-Oct-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 15-Oct-09 | GENZYME CORP Files SEC form 8-K, Change in Directors or Principal Officers |
| 13-Oct-09 | Coverage initiated on Genzyme by Credit Suisse |
| 11-Aug-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 10-Aug-09 | GENZYME CORP Files SEC form 10-Q, Quarterly Report |
| 7-Aug-09 | Price hit new 52-week low ($47.61) |
| 5-Aug-09 | Price hit new 52-week low ($48.79) |
| 22-Jul-09 | Genzyme Corporation Earnings Call scheduled for 11:00 am ET today |
| 22-Jul-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 16-Jun-09 | GENZYME CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 27-May-09 | GENZYME CORP Files SEC form 8-K, Change in Directors or Principal Officers |
| 12-May-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition |
| 11-May-09 | GENZYME CORP Files SEC form 10-Q, Quarterly Report |
| 22-Apr-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 31-Mar-09 | GENZYME CORP Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 3-Mar-09 | Price hit new 52-week low ($50.05) |
| 2-Mar-09 | GENZYME CORP Files SEC form 10-K, Annual Report |
| 11-Feb-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 13-Jan-09 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |
| 8-Dec-08 | GENZYME CORP Files SEC form 8-K, Change in Directors or Principal Officers |
| 5-Dec-08 | GENZYME CORP Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhibits |
| 7-Nov-08 | GENZYME CORP Files SEC form 10-Q, Quarterly Report |
| 22-Oct-08 | GENZYME CORP Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements and Exhibits |