| 2014-01-08 | Sale | Biogen Inc. BIIB | director | 30,000 0.0125% | $285.11 | $8.55M | +10.28% | |
| 2011-09-27 | Sale | Biogen Inc. BIIB | director | 66,500 0.0272% | $96.14 | $6.39M | +29.82% | |
| 2011-09-01 | Sale | Biogen Inc. BIIB | director | 70,000 0.0292% | $95.00 | $6.65M | +28.21% | |
| 2011-08-29 | Sale | Biogen Inc. BIIB | director | 20,000 0.007% | $80.36 | $1.61M | +27.75% | |
| 2004-05-25 | Sale | Biogen Inc. BIIB | director | 52,500 0.004% | $16.26 | $853,671 | -6.22% |