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> BIIB
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 12/31/2010 | BIOGEN INC. | BIIB | 0 | -203,528 | 0 | -9,657,000 | |
| 09/30/2010 | BIOGEN INC. | BIIB | 0 | -203,528 | 0 | -9,657,000 | |
| 06/30/2010 | BIOGEN INC. | BIIB | 203,528 | -90,695 | 9,657,000 | -6,084,000 | $47.45 |
| 03/31/2010 | BIOGEN INC. | BIIB | 350,336 | 56,113 | 20,095,000 | 4,354,000 | $57.36 |
| 12/31/2009 | BIOGEN INC. | BIIB | 294,223 | 292,623 | 15,741,000 | 15,660,000 | $53.50 |
| 09/30/2009 | BIOGEN INC. | BIIB | 1,600 | -249,577 | 81,000 | -11,260,000 | $50.63 |
| 06/30/2009 | BIOGEN INC. | BIIB | 251,177 | -26,749 | 11,341,000 | -3,228,000 | $45.15 |
| 03/31/2009 | BIOGEN INC. | BIIB | 277,926 | -29,683 | 14,569,000 | -82,000 | $52.42 |
| 12/31/2008 | BIOGEN INC. | BIIB | 307,609 | 307,609 | 14,651,000 | 14,651,000 | $47.63 |
| 09/30/2008 | BIOGEN INC. | BIIB | 297,635 | 8,088 | 14,968,000 | -1,215,000 | $50.29 |
| 06/30/2008 | BIOGEN INC. | BIIB | 289,547 | 9,526 | 16,183,000 | -1,091,000 | $55.89 |
| 03/31/2008 | BIOGEN INC. | BIIB | 280,021 | -48,539 | 17,274,000 | -1,428,000 | $61.69 |
| 12/31/2007 | BIOGEN INC. | BIIB | 328,560 | -15,570 | 18,702,000 | -4,124,000 | $56.92 |
| 09/30/2007 | BIOGEN INC. | BIIB | 344,130 | 40,571 | 22,826,000 | 6,586,000 | $66.33 |
| 06/30/2007 | BIOGEN INC. | BIIB | 303,559 | 8,778 | 16,240,000 | 3,158,000 | $53.50 |
| 03/31/2007 | BIOGEN INC. | BIIB | 294,781 | 10,884 | 13,082,000 | -883,000 | $44.38 |
| 12/31/2006 | BIOGEN INC. | BIIB | 283,897 | -134,067 | 13,965,000 | -4,710,000 | $49.19 |
| 09/30/2006 | BIOGEN INC. | BIIB | 417,964 | 417,964 | 18,675,000 | 18,675,000 | $44.68 |
| 06/30/2006 | BIOGEN INC. | BIIB | 397,625 | -142,741 | 18,422,000 | -7,029,000 | $46.33 |
| 03/31/2006 | BIOGEN INC. | BIIB | 540,366 | -50,721 | 25,451,000 | -1,343,000 | $47.10 |
| 12/31/2005 | BIOGEN INC. | BIIB | 591,087 | 43,839 | 26,794,000 | 5,189,000 | $45.33 |
| 09/30/2005 | BIOGEN INC. | BIIB | 547,248 | 32,130 | 21,605,000 | 3,859,000 | $39.48 |
| 06/30/2005 | BIOGEN INC. | BIIB | 669,325 | 178,537 | 23,058,000 | 6,121,000 | $34.45 |
| 03/31/2005 | BIOGEN INC. | BIIB | 657,845 | 236,167 | 22,702,000 | -5,386,000 | $34.51 |
| 12/31/2004 | BIOGEN INC. | BIIB | 421,678 | 13,605 | 28,088,000 | 3,126,000 | $66.61 |
| 09/30/2004 | BIOGEN INC. | BIIB | 408,073 | -21,082 | 24,962,000 | -2,182,000 | $61.17 |
| 06/30/2004 | BIOGEN INC. | BIIB | 429,155 | 375,237 | 27,144,000 | 24,146,000 | $63.25 |
| 03/31/2004 | BIOGEN INC. | BIIB | 53,918 | -588,372 | 2,998,000 | -20,625,000 | $55.60 |
| 12/31/2003 | BIOGEN INC. | BIIB | 642,290 | 642,290 | 23,623,000 | 23,623,000 | $36.78 |
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