| Date | Event |
| 9-Nov-09 | HEMISPHERX BIOPHARMA INC Files SEC form 10-Q, Quarterly Report |
| 15-Oct-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Amendment or Waiver to Code of Ethics |
| 10-Aug-09 | HEMISPHERX BIOPHARMA INC Files SEC form 10-Q, Quarterly Report |
| 22-Jul-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 24-Jun-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Other Events |
| 17-Jun-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 5-Jun-09 | Price hit new 52-week high ($4.54) |
| 4-Jun-09 | Price hit new 52-week high ($3.98) |
| 3-Jun-09 | Price hit new 52-week high ($2.79) |
| 27-May-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhi |
| 26-May-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Regulation FD Disclosure, Financial Statements and Exhibits |
| 19-May-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Entry into a Material Definitive Agreement, Financial Statements and Exh |
| 11-May-09 | HEMISPHERX BIOPHARMA INC Files SEC form 10-Q, Quarterly Report |
| 16-Mar-09 | HEMISPHERX BIOPHARMA INC Files SEC form 10-K, Annual Report |
| 19-Feb-09 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Other Events, Financial Statements and Exhibits |
| 28-Nov-08 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Other Events |
| 10-Nov-08 | HEMISPHERX BIOPHARMA INC Files SEC form 10-Q, Quarterly Report |
| 22-Oct-08 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K/A, Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year, Other |
| 22-Oct-08 | HEMISPHERX BIOPHARMA INC Files SEC form 8-K, Amendments to Articles of Inc. or Bylaws; Change in Fiscal Year, Other E |