On December 31, 2010, Biogen (BIIB) had a market capitalization of $16.4B, based on 244.55M shares at a price of $67.05.
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
December 2010 | $67.05 | 37,407,500 | 244,551,000 | $16,397,144,550.00 |
November 2010 | $63.97 | 46,604,300 | 244,551,000 | $15,643,927,470.00 |
October 2010 | $62.71 | 49,553,900 | 244,551,000 | $15,335,793,210.00 |
September 2010 | $56.12 | 51,792,000 | 242,313,000 | $13,598,605,560.00 |
August 2010 | $53.80 | 46,797,700 | 242,313,000 | $13,036,439,400.00 |
July 2010 | $55.88 | 91,488,400 | 242,313,000 | $13,540,450,440.00 |
June 2010 | $47.45 | 74,843,100 | 261,658,000 | $12,415,672,100.00 |
May 2010 | $47.43 | 64,814,000 | 261,658,000 | $12,410,438,940.00 |
April 2010 | $53.29 | 62,150,700 | 261,658,000 | $13,943,754,820.00 |
March 2010 | $57.39 | 49,405,200 | 272,703,000 | $15,650,425,170.00 |
February 2010 | $55.01 | 54,880,300 | 272,703,000 | $15,001,392,030.00 |
January 2010 | $53.74 | 59,027,400 | 272,703,000 | $14,655,059,220.00 |
December 2009 | $53.50 | 63,750,300 | 272,703,000 | $14,589,610,500.00 |
November 2009 | $46.94 | 79,719,600 | 272,703,000 | $12,800,678,820.00 |
October 2009 | $42.13 | 78,277,500 | 272,703,000 | $11,488,977,390.00 |
September 2009 | $50.52 | 54,681,800 | 291,037,000 | $14,703,189,240.00 |
August 2009 | $50.20 | 45,900,000 | 291,037,000 | $14,610,057,400.00 |
July 2009 | $47.55 | 74,156,500 | 291,037,000 | $13,838,809,350.00 |
June 2009 | $45.15 | 69,752,900 | 290,359,000 | $13,109,708,850.00 |
May 2009 | $51.79 | 53,540,900 | 290,359,000 | $15,037,692,610.00 |
April 2009 | $48.34 | 78,683,100 | 290,359,000 | $14,035,954,060.00 |
March 2009 | $52.42 | 77,373,700 | 289,744,000 | $15,188,380,480.00 |
February 2009 | $46.04 | 74,919,000 | 289,744,000 | $13,339,813,760.00 |
January 2009 | $48.65 | 81,151,500 | 289,744,000 | $14,096,045,600.00 |
December 2008 | $47.63 | 74,314,800 | 289,744,000 | $13,800,506,720.00 |
