E. Robert Gagnon

Insider Trading: Sales
Symbol Price Amount Total Value Remaining Holdings Date Form 4
BIIB $115.51 357 $41,237.07 3,999 2012-02-29 Filing
BIIB $115.51 360 $41,583.60 4,356 2012-02-29 Filing
BIIB $115.03 835 $96,050.05 4,716 2012-02-28 Filing
BIIB $115.53 1,054 $121,768.62 5,885 2012-02-24 Filing
BIIB $118.61 560 $66,421.60 5,050 2012-02-14 Filing
BIIB $112.31 795 $89,286.45 5,050 2011-12-06 Filing
BIIB $112.04 796 $89,183.84 6,216 2011-11-09 Filing
BIIB $97.66 252 $24,610.19 7,383 2011-10-05 Filing
BIIB $92.55 778 $72,003.90 7,635 2011-10-03 Filing
BIIB $96.13 967 $92,959.74 7,753 2011-05-06 Filing
BIIB $96.03 215 $20,645.55 8,720 2011-05-04 Filing
BIIB $70.32 100 $7,032.00 9,486 2011-03-02 Filing
BIIB $69.98 616 $43,108.67 9,586 2011-03-02 Filing
BIIB $70.17 586 $41,121.61 10,202 2011-03-02 Filing
BIIB $69.02 100 $6,902.00 10,788 2011-03-02 Filing
BIIB $66.99 1,054 $70,605.98 11,223 2011-02-24 Filing
BIIB $67.10 732 $49,115.30 10,537 2011-02-17 Filing
BIIB $66.57 1,053 $70,100.63 10,814 2011-01-04 Filing
BIIB $66.55 1,700 $113,140.95 10,814 2011-01-04 Filing
BIIB $66.58 1,554 $103,459.41 10,814 2011-01-04 Filing