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

Tue 1991-09-17? to Tue 2026-04-21	YTD Return	TRR Price
BIIB ×	+3.50% 2026-04-21	24.63 TRR 2026-04-21
Biogen Inc NASDAQ Common Stock

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Returns

Tue 1991-09-17? to Tue 2026-04-21	Overall Return	Exponential Trendline
BIIB ×	+2,363.24% +9.70%/yr	+15.64%/yr (R2=0.731)
Biogen Inc NASDAQ Common Stock

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Growth of $10,000

Tue 1991-09-17? to Tue 2026-04-21	Start Value	End Value
BIIB ×	$10,000.00 1991-09-17	$246,324.02 2026-04-21
Biogen Inc NASDAQ Common Stock

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Annual Returns

Year	BIIB
2026 (YTD)	+3.50%
2025	+12.08%
2024	−42.56%
2023	−9.58%
2022	+8.41%
2021	−8.46%
2020	−18.59%
2019	−3.59%
2018	−7.31%
2017	+10.01%
2016	−9.31%
2015	−10.41%
2014	+20.51%
2013	+88.18%
2012	+30.74%
2011	+59.40%
2010	+23.47%
2009	+9.35%
2008	−16.40%
2007	+11.16%
2006	+5.98%
2005	−34.28%
2004	+75.76%
2003	+8.61%
2002	−52.99%
2001	+7.43%
2000	+86.62%
1999	+307.15%
1998	+34.55%
1997	+42.32%
1996	+17.88%
1995	+794.85%
1994	−64.00%
1993	−36.06%
1992	−34.59%
1991	−31.14%

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Drawdowns

Tue 1991-09-17? to Tue 2026-04-21	Current Drawdown	Worst Drawdown
BIIB ×	−72.17%	−90.83% 1994-12-16
Biogen Inc NASDAQ Common Stock