| Date | Event |
| 12-Nov-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements an |
| 4-Nov-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 3-Nov-09 | REGENERON PHARMACEUTICALS INC Files SEC form 10-Q, Quarterly Report |
| 29-Oct-09 | Regeneron Pharms downgraded by RBC Capital Mkts |
| 14-Sep-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 12-Aug-09 | Price hit new 52-week high ($23.00) |
| 11-Aug-09 | Price hit new 52-week high ($22.69) |
| 4-Aug-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 30-Jul-09 | Price hit new 52-week high ($22.00) |
| 11-Jun-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 1-May-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 30-Apr-09 | REGENERON PHARMACEUTICALS INC Files SEC form 10-Q, Quarterly Report |
| 11-Mar-09 | Price hit new 52-week low ($11.81) |
| 6-Mar-09 | Price hit new 52-week low ($12.21) |
| 26-Feb-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Results of Operations and Financial Condition, Financial Statements |
| 26-Feb-09 | REGENERON PHARMACEUTICALS INC Files SEC form 10-K, Annual Report |
| 9-Jan-09 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Regulation FD Disclosure |
| 20-Nov-08 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 5-Nov-08 | REGENERON PHARMACEUTICALS INC Files SEC form 10-Q, Quarterly Report |
| 4-Nov-08 | REGENERON PHARMACEUTICALS INC Files SEC form 8-K, Results of Operations and Financial Condition |