| 2006-04-28 | Sale | Biogen Inc. BIIB | director | 10,000 0.0029% | $45.27 | $452,650 | +1.98% | |
| 2005-01-03 | Sale | Biogen Inc. BIIB | director | 5,000 0.0003% | $14.48 | $72,400 | -40.44% | |
| 2004-10-01 | Sale | Biogen Inc. BIIB | director | 5,000 0.0003% | $14.48 | $72,400 | -35.37% | |
| 2004-05-26 | Sale | Biogen Inc. BIIB | director | 5,000 0.0015% | $63.04 | $315,200 | -5.6% | |
| 2004-05-24 | Sale | Biogen Inc. BIIB | director | 9,500 0.0028% | $61.30 | $582,350 | -4.84% |