Common Stock, Shares, Outstanding of BIOGEN INC. from 31 Dec 2010 to 31 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
Summary
BIOGEN INC. quarterly Common Stock, Shares, Outstanding in shares history and change rate from 31 Dec 2010 to 31 Dec 2025.
  • BIOGEN INC. Common Stock, Shares, Outstanding for the quarter ending 31 Dec 2025 was 146,800,000, a 0.69% increase year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Outstanding, Quarterly (shares)
Common Stock, Shares, Outstanding, YoY Quarterly Change (%)

BIOGEN INC. Quarterly Common Stock, Shares, Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 146,800,000 +1,000,000 +0.69% 31 Dec 2025 10-K 06 Feb 2026 2025 FY
Q4 2024 145,800,000 +900,000 +0.62% 31 Dec 2024 10-K 06 Feb 2026 2025 FY
Q4 2023 144,900,000 +900,000 +0.62% 31 Dec 2023 10-K 06 Feb 2026 2025 FY
Q4 2022 144,000,000 -3,000,000 -2% 31 Dec 2022 10-K 12 Feb 2025 2024 FY
Q4 2021 147,000,000 -5,400,000 -3.5% 31 Dec 2021 10-K 14 Feb 2024 2023 FY
Q4 2020 152,400,000 -21,800,000 -13% 31 Dec 2020 10-K 15 Feb 2023 2022 FY
Q4 2019 174,200,000 -23,000,000 -12% 31 Dec 2019 10-K 03 Feb 2022 2021 FY
Q4 2018 197,200,000 -14,300,000 -6.8% 31 Dec 2018 10-K 03 Feb 2021 2020 FY
Q4 2017 211,500,000 -4,400,000 -2% 31 Dec 2017 10-K 06 Feb 2020 2019 FY
Q4 2016 215,900,000 -2,700,000 -1.2% 31 Dec 2016 10-K 06 Feb 2019 2018 FY
Q4 2015 218,600,000 -16,000,000 -6.8% 31 Dec 2015 10-K 02 Feb 2017 2016 FY
Q4 2014 234,600,000 -1,732,000 -0.73% 31 Dec 2014 10-K 03 Feb 2016 2015 FY
Q4 2013 236,332,000 -250,000 -0.11% 31 Dec 2013 10-K 04 Feb 2015 2014 FY
Q4 2012 236,582,000 -5,533,000 -2.3% 31 Dec 2012 10-K 06 Feb 2014 2013 FY
Q4 2011 242,115,000 +1,577,000 +0.66% 31 Dec 2011 10-K 05 Feb 2013 2012 FY
Q4 2010 240,538,000 31 Dec 2010 10-K 03 Feb 2012 2011 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.