BIIB: Total Real Return Chart (Dividends Reinvested, Inflation Adjusted)

Tue 1991-09-17? to Fri 2026-02-06	YTD Return	TRR Price
BIIB ×	+14.03% 2026-02-06	27.14 TRR 2026-02-06
Biogen Inc NASDAQ Common Stock

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Returns

Tue 1991-09-17? to Fri 2026-02-06	Overall Return	Exponential Trendline
BIIB ×	+2,613.88% +10.07%/yr	+15.83%/yr (R2=0.736)
Biogen Inc NASDAQ Common Stock

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Growth of $10,000

Tue 1991-09-17? to Fri 2026-02-06	Start Value	End Value
BIIB ×	$10,000.00 1991-09-17	$271,388.10 2026-02-06
Biogen Inc NASDAQ Common Stock

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Annual Returns

Year	BIIB
2026 (YTD)	+14.03%
2025	+12.09%
2024	−42.56%
2023	−9.58%
2022	+8.41%
2021	−8.46%
2020	−18.59%
2019	−3.60%
2018	−7.31%
2017	+10.01%
2016	−9.31%
2015	−10.41%
2014	+20.51%
2013	+88.17%
2012	+30.74%
2011	+59.40%
2010	+23.48%
2009	+9.35%
2008	−16.40%
2007	+11.18%
2006	+5.95%
2005	−34.27%
2004	+75.78%
2003	+8.59%
2002	−52.99%
2001	+7.43%
2000	+86.60%
1999	+307.08%
1998	+34.58%
1997	+42.33%
1996	+17.88%
1995	+794.87%
1994	−64.00%
1993	−36.06%
1992	−34.58%
1991	−31.15%

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Drawdowns

Tue 1991-09-17? to Fri 2026-02-06	Current Drawdown	Worst Drawdown
BIIB ×	−69.34%	−90.83% 1994-12-16
Biogen Inc NASDAQ Common Stock