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

Tue 1991-09-17? to Tue 2025-10-07	YTD Return	TRR Price
BIIB ×	−3.32% 2025-10-07	20.53 TRR 2025-10-07
Biogen Inc NASDAQ Common Stock

---

Returns

Tue 1991-09-17? to Tue 2025-10-07	Overall Return	Exponential Trendline
BIIB ×	+1,952.73% +9.28%/yr	+16.16%/yr (R2=0.745)
Biogen Inc NASDAQ Common Stock

---

Growth of $10,000

Tue 1991-09-17? to Tue 2025-10-07	Start Value	End Value
BIIB ×	$10,000.00 1991-09-17	$205,273.10 2025-10-07
Biogen Inc NASDAQ Common Stock

---

Annual Returns

Year	BIIB
2025 (YTD)	−3.32%
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	+88.17%
2012	+30.74%
2011	+59.40%
2010	+23.48%
2009	+9.35%
2008	−16.39%
2007	+11.16%
2006	+5.97%
2005	−34.27%
2004	+75.78%
2003	+8.59%
2002	−52.99%
2001	+7.42%
2000	+86.60%
1999	+307.15%
1998	+34.58%
1997	+42.31%
1996	+17.88%
1995	+794.77%
1994	−64.01%
1993	−36.03%
1992	−34.59%
1991	−31.15%

---

Drawdowns

Tue 1991-09-17? to Tue 2025-10-07	Current Drawdown	Worst Drawdown
BIIB ×	−76.81%	−90.83% 1994-12-16
Biogen Inc NASDAQ Common Stock