| Date | Event |
| 19-Nov-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Sta |
| 6-Nov-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhib |
| 6-Nov-09 | Earnings announcement |
| 2-Nov-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Entry into a Material Definitive Agreement, Unregistered Sale of Equity S |
| 5-Oct-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Change in Directors or Principal Officers, Financial Statements and Exhib |
| 18-Sep-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Sta |
| 31-Jul-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Entry into a Material Definitive Agreement, Unregistered Sale of Equity S |
| 8-Jul-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Other Events |
| 19-Jun-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Sta |
| 2-Jun-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Change in Directors or Principal Officers |
| 27-May-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Material Modification to Rights of Security Holders, Amendments to Articl |
| 27-May-09 | GTC BIOTHERAPEUTICS INC Files SEC form 8-K, Material Modification to Rights of Security Holders, Amendments to Articl |
| 26-May-09 | Price hit new 52-week low ($0.33) |
| 4-Feb-09 | Price hit new 52-week high ($0.95) |
| 3-Feb-09 | Price hit new 52-week high ($0.94) |
| 2-Feb-09 | Price hit new 52-week high ($0.88) |