Biogen (BIIB) Equity Ratio & History | Stock Alarm

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Biogen · Equity Ratio

BIIB Equity Ratio

Current (TTM)58.74%retrievedOct 20, 2026

BIIB Equity Ratio (87.30% → 58.74%)

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BIIB equity ratio history

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

Biogen Equity Ratio — Annual fiscal periods
Period ending	Equity Ratio
Dec 31, 2025	62.0146%
Dec 31, 2024	59.5951%
Dec 31, 2023	55.1295%
Dec 31, 2022	54.5648%
Dec 31, 2021	45.6341%
Dec 31, 2020	43.4638%
Dec 31, 2019	48.9941%
Dec 31, 2018	51.5625%
Dec 31, 2017	53.3252%
Dec 31, 2016	53.0673%
Dec 31, 2015	48.0538%
Dec 31, 2014	75.5352%
Dec 31, 2013	72.6629%
Dec 31, 2012	68.721%
Dec 31, 2011	71.0195%
Dec 31, 2010	66.6853%
Dec 31, 2009	72.7507%
Dec 31, 2008	68.4761%
Dec 31, 2007	64.1374%
Dec 31, 2006	83.5957%
Dec 31, 2005	82.5376%
Dec 31, 2004	74.4772%
Dec 31, 2003	74.2147%
Dec 31, 2002	79.4933%
Dec 31, 2001	78.3728%
Dec 31, 2000	77.2705%
Dec 31, 1999	76.6472%
Dec 31, 1998	77.7118%
Dec 31, 1997	65.8978%
Dec 31, 1996	76.3302%
Dec 31, 1995	81.6239%
Dec 31, 1994	87.316%
Dec 31, 1993	91.0924%
Dec 31, 1992	91.581%
Dec 31, 1991	94.4291%
Dec 31, 1990	91.9243%
Dec 31, 1989	95.8678%
Dec 31, 1988	84.0544%
Dec 31, 1987	84.1388%
Dec 31, 1986	88.5035%
Dec 31, 1985	87.296%

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