| 2008-09-09 | Sale | Repligen Corporation RGEN | director | 5,000 0.016% | $5.05 | $25,250 | -15.54% | |
| 2007-06-14 | Sale | Repligen Corporation RGEN | director | 5,000 0.0164% | $3.90 | $19,501 | +23.14% | |
| 2006-09-06 | Sale | Repligen Corporation RGEN | director | 5,000 0.0165% | $3.38 | $16,900 | -3.85% |