| 2008-04-29 | Sale | Biogen Inc. BIIB | director | 10,000 0.0035% | $61.86 | $618,587 | -18.51% | |
| 2007-05-30 | Sale | Biogen Inc. BIIB | director | 20,000 0.0035% | $31.08 | $621,666 | +18.03% | |
| 2006-10-02 | Sale | Biogen Inc. BIIB | director | 13,140 0.0039% | $44.63 | $586,478 | +11.89% | |
| 2004-11-30 | Sale | Biogen Inc. BIIB | director | 10,000 0.0004% | $7.79 | $77,917 | -32.72% | |
| 2004-08-04 | Sale | Biogen Inc. BIIB | director | 5,000 0.0015% | $58.00 | $290,000 | -0.07% | |
| 2004-05-26 | Sale | Biogen Inc. BIIB | director | 10,000 0.0007% | $15.10 | $150,952 | -5.6% | |
| 2004-05-05 | Sale | Biogen Inc. BIIB | director | 30,000 0.0006% | $4.06 | $121,875 | +1.24% | |
| 2003-10-28 | Sale | Biogen Inc. BIIB | director | 16,460 0.0006% | $4.06 | $66,869 | +67.29% |