| 2004-11-17 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 75,000 0.0228% | $58.12 | $4.36M | -30.81% | |
| 2004-08-31 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 25,000 0.0074% | $58.54 | $1.46M | -29.92% | |
| 2004-08-30 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 48,525 0.0145% | $58.59 | $2.84M | -29.08% | |
| 2004-06-02 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 50,000 0.015% | $63.46 | $3.17M | -5.44% | |
| 2004-03-02 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 2,200 0.0006% | $55.73 | $122,606 | +3.83% | |
| 2004-02-18 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 18,100 0.0006% | $6.19 | $111,994 | +12.08% | |
| 2004-01-21 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 400 <0.0001% | $6.19 | $2,475 | +31.87% | |
| 2004-01-07 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 25,000 0.0011% | $6.19 | $154,688 | +44.03% | |
| 2003-12-02 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 50,000 0.0024% | $6.19 | $309,375 | +49.51% | |
| 2003-10-03 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 10,000 0.0005% | $6.19 | $61,875 | +61.82% | |
| 2003-09-17 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 10,000 0.0011% | $6.19 | $61,875 | +50.64% | |
| 2003-09-08 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 10,000 0.0011% | $6.19 | $61,875 | +52.87% | |
| 2003-09-02 | Sale | Biogen Inc. BIIB | Chief Operating Officer | 20,000 0.0024% | $6.19 | $123,750 | +56.62% |