Biogen (BIIB) has a market capitalization of $22B, based on 146.61M shares at a price of $149.93 (down 0.3% today).
| DATE | CLOSE | VOLUME | OUTSTANDING | MARKET CAP |
|---|---|---|---|---|
October 2025 | $150.43 | 31,224,008 | 146,614,581 | $22,055,231,419.83 |
September 2025 | $140.08 | 35,338,600 | 145,900,000 | $20,437,672,000.00 |
August 2025 | $132.22 | 30,543,100 | 145,900,000 | $19,290,898,000.00 |
July 2025 | $128.00 | 29,438,200 | 145,900,000 | $18,675,200,000.00 |
June 2025 | $125.59 | 26,463,600 | 145,900,000 | $18,323,581,000.00 |
May 2025 | $129.79 | 37,229,900 | 145,900,000 | $18,936,361,000.00 |
April 2025 | $121.08 | 37,657,900 | 145,900,000 | $17,665,572,000.00 |
March 2025 | $136.84 | 37,147,400 | 145,900,000 | $19,964,956,000.00 |
February 2025 | $140.50 | 31,487,500 | 145,900,000 | $20,498,950,000.00 |
January 2025 | $143.93 | 25,766,600 | 145,900,000 | $20,999,387,000.00 |
December 2024 | $152.92 | 31,960,300 | 146,100,000 | $22,341,612,000.00 |
November 2024 | $160.63 | 34,751,100 | 146,100,000 | $23,468,043,000.00 |
October 2024 | $174.00 | 30,796,000 | 146,100,000 | $25,421,400,000.00 |
September 2024 | $193.84 | 21,981,500 | 145,900,000 | $28,281,256,000.00 |
August 2024 | $204.76 | 19,658,300 | 145,900,000 | $29,874,484,000.00 |
July 2024 | $213.20 | 22,031,600 | 145,900,000 | $31,105,880,000.00 |
June 2024 | $231.82 | 21,017,000 | 145,900,000 | $33,822,538,000.00 |
May 2024 | $224.94 | 22,549,700 | 145,900,000 | $32,818,746,000.00 |
April 2024 | $214.82 | 28,895,100 | 145,900,000 | $31,342,238,000.00 |
March 2024 | $215.63 | 26,465,900 | 145,900,000 | $31,460,417,000.00 |
February 2024 | $216.99 | 25,350,200 | 145,900,000 | $31,658,841,000.00 |
January 2024 | $246.66 | 20,225,600 | 145,900,000 | $35,987,694,000.00 |
December 2023 | $258.77 | 23,771,300 | 145,700,000 | $37,702,789,000.00 |
November 2023 | $234.08 | 23,323,200 | 145,700,000 | $34,105,456,000.00 |
October 2023 | $237.54 | 21,996,900 | 145,700,000 | $34,609,578,000.00 |
