Biogen (BIIB) Shares Out (Basic) & History | Stock Alarm

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Biogen · Shares Out (Basic)

BIIB Shares Out (Basic)

Latest reported146.70Mperiod endingDec 31, 2025

BIIB FY Shares Out (Basic) (440.77M → 146.70M)

Annual shares out (basic)

High-resolution chart · PNG

BIIB shares out (basic) history

Annual fiscal periods. Dates are reporting period ends; fiscal years can differ from calendar years.

Biogen Shares Out (Basic) — Annual fiscal periods
Period ending	Shares Out (Basic)
Dec 31, 2025	146,700,000
Dec 31, 2024	145,700,000
Dec 31, 2023	144,700,000
Dec 31, 2022	145,300,000
Dec 31, 2021	149,100,000
Dec 31, 2020	160,900,000
Dec 31, 2019	187,100,000
Dec 31, 2018	204,900,000
Dec 31, 2017	212,600,000
Dec 31, 2016	218,400,000
Dec 31, 2015	230,700,000
Dec 31, 2014	236,359,000
Dec 31, 2013	236,919,000
Dec 31, 2012	237,938,000
Dec 31, 2011	242,395,000
Dec 31, 2010	252,307,000
Dec 31, 2009	287,356,000
Dec 31, 2008	292,332,000
Dec 31, 2007	315,836,000
Dec 31, 2006	338,585,000
Dec 31, 2005	335,586,000
Dec 31, 2004	334,996,000
Dec 31, 2003	333,699,000
Dec 31, 2002	389,964,000
Dec 31, 2001	389,964,000
Dec 31, 2000	446,229,000
Dec 31, 1999	449,763,000
Dec 31, 1998	884,516,000
Dec 31, 1997	877,895,000
Dec 31, 1996	850,000,000
Dec 31, 1995	705,000,000
Dec 31, 1994	816,000,000
Dec 31, 1993	747,692,000
Dec 31, 1992	820,714,000
Dec 31, 1991	675,000,000
Dec 31, 1990	540,000,000
Dec 31, 1989	390,000,000
Dec 31, 1988	240,000,000
Dec 31, 1987	521,538,000
Dec 31, 1986	470,000,000
Dec 31, 1985	440,769,000

Data is provided for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.