Biogen Inc.

Explore BIIB stock price, historical returns, and performance trends — updated daily.

Biogen Inc. Common Stock (BIIB) company overview

Biogen is an established biopharmaceutical company focused on treatments for neurodegenerative and rare diseases. Its declining multiple sclerosis franchise is its largest revenue generator and contributed 40% of total revenue in 2025. Biogen also generates significant revenue from its CD20 collaboration agreements with Roche (19% of total in 2025), which includes oncology drugs Rituxan and Gazyva and multiple sclerosis drug Ocrevus. Biogen's newer franchises include Spinraza (spinal muscular atrophy, with partner Ionis), Leqembi (Alzheimer's disease, collabroation revenue from its partner Eisai), Skyclarys (Friedreich's ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (amyotrophic lateral sclerosis, Ionis).

BIIB — period returns
PeriodReturn %
Last date-1.15
Week3.07
Last Month7.7
Last 3 months12.94
Last 6 months32.17
Year to Date (YTD)30.83
Last 1 year63.54
Last 2 years23.1
Last 3 years-13.01
Last 5 years-13.75
Last 10 years-21.15
Last 15 years128.83
Last 20 years413.69
Last 25 years306.52
Last 50 years7356.73
SPY benchmark — period returns
PeriodReturn %
Last date-1.11
Week-1.97
Last Month1.22
Last 3 months2.69
Last 6 months8.78
Year to Date (YTD)11.72
Last 1 year15.53
Last 2 years31.08
Last 3 years75.05
Last 5 years70.68
Last 10 years257.14
Last 15 years527.36
Last 20 years455.21
Last 25 years597.22
Last 50 years1637.03
BIIB annual returns (chart)
BIIB annual returns
PeriodReturn %
2000103.31
200116.34
2002-51.33
20036.87
200480.32
2005-31.69
20065.24
200715.39
2008-14.75
200910.33
201025
201163.76
201228.96
201386.38
201421.09
2015-10.43
2016-3.75
20179.21
2018-9.95
2019-2.61
2020-16.78
2021-1.25
202213.43
2023-5.08
2024-42.88
202517.33
202630.83
BIIB quarterly returns (chart)
BIIB quarterly returns
PeriodReturn %
2000-Q15.37
2000-Q224.6
2000-Q347.34
2000-Q420.75
2001-Q1-32.49
2001-Q274.95
2001-Q3-24.61
2001-Q433.59
2002-Q1-5.65
2002-Q2-45.92
2002-Q327.36
2002-Q4-20.38
2003-Q1-0.35
2003-Q2-0.41
2003-Q3-5.75
2003-Q48.97
2004-Q150.51
2004-Q211.95
2004-Q3-1.12
2004-Q45.95
2005-Q1-47.94
2005-Q2-0.83
2005-Q315.85
2005-Q413.43
2006-Q10.77
2006-Q2-0.04
2006-Q3-5
2006-Q411.19
2007-Q1-10.03
2007-Q220.74
2007-Q323.27
2007-Q4-16.22
2008-Q110.42
2008-Q2-12.69
2008-Q3-15.25
2008-Q4-3.95
2009-Q18.1
2009-Q2-12.97
2009-Q38.02
2009-Q48.43
2010-Q16.99
2010-Q2-17.51
2010-Q320.09
2010-Q418.61
2011-Q19.33
2011-Q246.55
2011-Q3-14.15
2011-Q423.71
2012-Q111.01
2012-Q213.12
2012-Q32.47
2012-Q4-2.38
2013-Q128.41
2013-Q211.64
2013-Q310.5
2013-Q414.15
2014-Q19.11
2014-Q21.78
2014-Q31.87
2014-Q44.93
2015-Q123.46
2015-Q2-2.39
2015-Q3-28.02
2015-Q46.63
2016-Q1-11.64
2016-Q2-7.19
2016-Q327.74
2016-Q4-8.99
2017-Q1-6.27
2017-Q2-0.49
2017-Q314.9
2017-Q40.76
2018-Q1-18.06
2018-Q28.75
2018-Q319.45
2018-Q4-14.65
2019-Q1-22.42
2019-Q20.59
2019-Q3-1.13
2019-Q430.6
2020-Q17.52
2020-Q2-8.77
2020-Q37.14
2020-Q4-14.26
2021-Q115.15
2021-Q224.24
2021-Q3-18.9
2021-Q4-15.5
2022-Q1-13.74
2022-Q2-3.19
2022-Q326.76
2022-Q44.77
2023-Q11.98
2023-Q22.71
2023-Q3-9.96
2023-Q42.34
2024-Q1-19.45
2024-Q27.91
2024-Q3-16.37
2024-Q4-19.85
2025-Q1-8.77
2025-Q2-4.88
2025-Q37.7
2025-Q414.12
2026-Q13.1
2026-Q217.56
2026-Q37.7
2026-Q44.41
BIIB monthly returns (chart)
BIIB monthly returns
PeriodReturn %
2000-0135.33
2000-0211.65
2000-03-30.26
2000-04-34.87
2000-05-0.28
2000-0683.83
2000-074.71
2000-0813.68
2000-0925.59
2000-1011.86
2000-11-11.26
2000-128.91
2001-01-6.93
2001-02-4.13
2001-03-29.05
2001-0423
2001-0525.2
2001-069.89
2001-07-20.25
2001-089.8
2001-09-16.37
2001-1021
2001-1117.21
2001-12-1.95
2002-01-13.74
2002-025.65
2002-032.36
2002-04-14.54
2002-05-21.95
2002-06-17.35
2002-0725.78
2002-08-9.89
2002-093.33
2002-1010.84
2002-11-28.7
2002-121.1
2003-01-3.29
2003-02-10.38
2003-0319.03
2003-04-4.3
2003-0516.7
2003-06-11.15
2003-07-0.59
2003-082.84
2003-09-4.12
2003-105.56
2003-118.65
2003-12-3.88
2004-0117.11
2004-0229.01
2004-030.27
2004-046.12
2004-055.34
2004-061.77
2004-07-5.14
2004-08-1.12
2004-093.1
2004-10-4.92
2004-110.89
2004-1213.51
2005-01-2.48
2005-02-40.5
2005-03-10.71
2005-045.01
2005-057.89
2005-06-11.89
2005-0714.05
2005-087.25
2005-09-6.31
2005-102.91
2005-115.37
2005-125.77
2006-01-1.17
2006-025.59
2006-03-0.32
2006-04-4.78
2006-053.97
2006-06-0.66
2006-07-9.22
2006-085.11
2006-091.09
2006-106.54
2006-119.79
2006-12-5.87
2007-01-1.73
2007-02-6.52
2007-03-1.79
2007-046.38
2007-0510.61
2007-062.45
2007-075.68
2007-0812.88
2007-093.93
2007-1012.23
2007-11-0.43
2007-12-23.21
2008-017.08
2008-02-4.25
2008-035.71
2008-04-1.62
2008-053.39
2008-06-10.93
2008-0724.82
2008-08-26.99
2008-09-1.26
2008-10-15.39
2008-11-0.56
2008-1212.57
2009-012.14
2009-02-5.36
2009-0313.86
2009-04-7.78
2009-057.14
2009-06-12.82
2009-075.32
2009-085.57
2009-090.64
2009-10-16.61
2009-1111.42
2009-1213.98
BIIB OHLC (1 year) — price trend
BIIB OHLC (1 year)
DateOpenHighLowCloseVolume
2025-10-20143.31147.47142.41146.63—
2025-10-21146.09147.89144.29146.22—
2025-10-22147.37149.12146.25147.72—
2025-10-23148.99150.29147.57150.08—
2025-10-24151.09151.92148.98149.89—
2025-10-27150.07150.92148.1150.43—
2025-10-28150.01150.3148.37149.13—
2025-10-29148.82149.91147.54147.86—
2025-10-30140.1154.44138149.61—
2025-10-31147.99155.18146.52154.27—
2025-11-03153.6155.33149.63151.44—
2025-11-04150.89152.9149.05149.33—
2025-11-05149.66153.68148.51153.43—
2025-11-06155.76157.8153.76156.74—
2025-11-07156.7156.7151.83155.51—
2025-11-10155.41156.55153.77156.26—
2025-11-11156.76159.95154.2159.56—
2025-11-12160162.56158.05161.48—
2025-11-13161.57167.87161.2164.73—
2025-11-14164.72169163167.55—
2025-11-17167167.97163.5164.68—
2025-11-18164.4170.78163168.83—
2025-11-19168.83168.9165.79167.93—
2025-11-20168.15170.91165.75168.18—
2025-11-21168.54176.02167.42175.3—
2025-11-24177.65185.17175.57176.82—
2025-11-25177.07182.97176.09181.96—
2025-11-26181.96183.93180.76181.94—
2025-11-28182.07182.74180.69182.09—
2025-12-01180.15181.78175.88177.78—
2025-12-02177.32180.55174.53180.18—
2025-12-03180.17182.94178.05180.75—
2025-12-04181.86182.69179.27181.98—
2025-12-05181.96183.15181.1181.3—
2025-12-08181.3182.12179.21180.44—
2025-12-09179.91181.99175.39175.84—
2025-12-10173.3178.17169.24177.55—
2025-12-11177.47180.79172172.5—
2025-12-12173.49175.08171.27174.1—
2025-12-15173.67175.94170.45175.74—
2025-12-16174.51174.51169.52171.5—
2025-12-17171.43173.83169.55172.1—
2025-12-18171.59173168.56169.91—
2025-12-19171.32176.42170174.8—
2025-12-22174.78177.29172.9174.7—
2025-12-23174.26175.58173.08174.82—
2025-12-24175.73177.18175.37176.33—
2025-12-26175.3177.19175177.08—
2025-12-29177178.46176.31176.83—
2025-12-30176.3176.99175.72176.4—
2025-12-31175.76177.19175.02175.99—
2026-01-02175.37178.24174.28177.82—
2026-01-05175.73180.56171.61174.63—
2026-01-06174.94182.97174.3182.61—
2026-01-07181.7187.06181.7186.91—
2026-01-08187.02187.77183.5186—
2026-01-09186.74190.2186.49187.62—
2026-01-12188188182.73185.63—
2026-01-13185.42186.32177.05178.3—
2026-01-14177.73178.41165.58169.31—
2026-01-15169.03169.79166.79168.57—
2026-01-16168.87169.34163.74164.42—
2026-01-20161.51165.61160.36165.38—
2026-01-21165.31172.87165.31172.62—
2026-01-22171.78175.29171.65173.8—
2026-01-23173.17173.9170.04171.59—
2026-01-26171.67174.31170.59173.12—
2026-01-27173.02176.14172.23174.12—
2026-01-28173.63175.06170.85174.83—
2026-01-29174.88177.2173.51176.18—
2026-01-30177.09180.14175.96179.89—
2026-02-02179.3180.76177.58179.09—
2026-02-03177.79182.67176.19176.76—
2026-02-04177.25186.24177.1185.45—
2026-02-05184.87187.73184.54185.36—
2026-02-06187.01202.41184.6201.18—
2026-02-09199.83201191.88193.81—
2026-02-10194.07195.72188.74188.99—
2026-02-11188.35192187.2191.2—
2026-02-12190.15196189195.5—
2026-02-13196.27199.5195.52196.52—
2026-02-17197.46200.29193.37195.62—
2026-02-18195.32195.68193.11194.13—
2026-02-19193.51195191.05192.08—
2026-02-20190.78192.6189.95192.03—
2026-02-23191.82197.05189.11196.34—
2026-02-24196.03198.72194.43195.13—
2026-02-25194.23196.73189.89190.73—
2026-02-26190.3190.74185.9188.02—
2026-02-27187.51192.46186.62191.82—
2026-03-02190.22190.75186.72188.05—
2026-03-03185.01187.05181.79184.02—
2026-03-04185.06190.37183.16189.94—
2026-03-05187.97190.99185.95188.08—
2026-03-06186.25186.25181.24184.87—
2026-03-09183.91188.5182.6188.24—
2026-03-10187.69190.78187.02188.41—
2026-03-11187.54192.99187.54190.48—
2026-03-12187.86188.91184.63184.9—
2026-03-13185.99188181.46181.55—
2026-03-16182.76184.62181.88183.26—
2026-03-17184.73186.52183.2185.29—
2026-03-18184.13184.32180.48182.31—
2026-03-19182.18185.45181.68183.41—
2026-03-20183.13183.69180.48181.46—
2026-03-23183.48185183.02183.64—
2026-03-24182.63184.84180.33183.94—
2026-03-25184.91189.38184.91189.18—
2026-03-26189192.27188.35191.06—
2026-03-27191.06191.06183.01183.84—
2026-03-30186.16190.09185.55187.57—
2026-03-31179.46184.68171.37183.33—
2026-04-01183.17186.31181.71183.78—
2026-04-02181.46182.23176.39177.34—
2026-04-06177177168.64172.34—
2026-04-07172.21175.61170.43175.61—
2026-04-08178.24180.17176.35179.9—
2026-04-09177.81180.06174.96177.11—
2026-04-10177.97177.97172.32172.97—
2026-04-13172.62176.79171.22176.37—
BIIB OHLC with signals — price trend
BIIB OHLC with signals
DateOpenHighLowCloseVolume
2025-10-20143.31147.47142.41146.63—
2025-10-21146.09147.89144.29146.22—
2025-10-22147.37149.12146.25147.72—
2025-10-23148.99150.29147.57150.08—
2025-10-24151.09151.92148.98149.89—
2025-10-27150.07150.92148.1150.43—
2025-10-28150.01150.3148.37149.13—
2025-10-29148.82149.91147.54147.86—
2025-10-30140.1154.44138149.61—
2025-10-31147.99155.18146.52154.27—
2025-11-03153.6155.33149.63151.44—
2025-11-04150.89152.9149.05149.33—
2025-11-05149.66153.68148.51153.43—
2025-11-06155.76157.8153.76156.74—
2025-11-07156.7156.7151.83155.51—
2025-11-10155.41156.55153.77156.26—
2025-11-11156.76159.95154.2159.56—
2025-11-12160162.56158.05161.48—
2025-11-13161.57167.87161.2164.73—
2025-11-14164.72169163167.55—
2025-11-17167167.97163.5164.68—
2025-11-18164.4170.78163168.83—
2025-11-19168.83168.9165.79167.93—
2025-11-20168.15170.91165.75168.18—
2025-11-21168.54176.02167.42175.3—
2025-11-24177.65185.17175.57176.82—
2025-11-25177.07182.97176.09181.96—
2025-11-26181.96183.93180.76181.94—
2025-11-28182.07182.74180.69182.09—
2025-12-01180.15181.78175.88177.78—
2025-12-02177.32180.55174.53180.18—
2025-12-03180.17182.94178.05180.75—
2025-12-04181.86182.69179.27181.98—
2025-12-05181.96183.15181.1181.3—
2025-12-08181.3182.12179.21180.44—
2025-12-09179.91181.99175.39175.84—
2025-12-10173.3178.17169.24177.55—
2025-12-11177.47180.79172172.5—
2025-12-12173.49175.08171.27174.1—
2025-12-15173.67175.94170.45175.74—
2025-12-16174.51174.51169.52171.5—
2025-12-17171.43173.83169.55172.1—
2025-12-18171.59173168.56169.91—
2025-12-19171.32176.42170174.8—
2025-12-22174.78177.29172.9174.7—
2025-12-23174.26175.58173.08174.82—
2025-12-24175.73177.18175.37176.33—
2025-12-26175.3177.19175177.08—
2025-12-29177178.46176.31176.83—
2025-12-30176.3176.99175.72176.4—
2025-12-31175.76177.19175.02175.99—
2026-01-02175.37178.24174.28177.82—
2026-01-05175.73180.56171.61174.63—
2026-01-06174.94182.97174.3182.61—
2026-01-07181.7187.06181.7186.91—
2026-01-08187.02187.77183.5186—
2026-01-09186.74190.2186.49187.62—
2026-01-12188188182.73185.63—
2026-01-13185.42186.32177.05178.3—
2026-01-14177.73178.41165.58169.31—
2026-01-15169.03169.79166.79168.57—
2026-01-16168.87169.34163.74164.42—
2026-01-20161.51165.61160.36165.38—
2026-01-21165.31172.87165.31172.62—
2026-01-22171.78175.29171.65173.8—
2026-01-23173.17173.9170.04171.59—
2026-01-26171.67174.31170.59173.12—
2026-01-27173.02176.14172.23174.12—
2026-01-28173.63175.06170.85174.83—
2026-01-29174.88177.2173.51176.18—
2026-01-30177.09180.14175.96179.89—
2026-02-02179.3180.76177.58179.09—
2026-02-03177.79182.67176.19176.76—
2026-02-04177.25186.24177.1185.45—
2026-02-05184.87187.73184.54185.36—
2026-02-06187.01202.41184.6201.18—
2026-02-09199.83201191.88193.81—
2026-02-10194.07195.72188.74188.99—
2026-02-11188.35192187.2191.2—
2026-02-12190.15196189195.5—
2026-02-13196.27199.5195.52196.52—
2026-02-17197.46200.29193.37195.62—
2026-02-18195.32195.68193.11194.13—
2026-02-19193.51195191.05192.08—
2026-02-20190.78192.6189.95192.03—
2026-02-23191.82197.05189.11196.34—
2026-02-24196.03198.72194.43195.13—
2026-02-25194.23196.73189.89190.73—
2026-02-26190.3190.74185.9188.02—
2026-02-27187.51192.46186.62191.82—
2026-03-02190.22190.75186.72188.05—
2026-03-03185.01187.05181.79184.02—
2026-03-04185.06190.37183.16189.94—
2026-03-05187.97190.99185.95188.08—
2026-03-06186.25186.25181.24184.87—
2026-03-09183.91188.5182.6188.24—
2026-03-10187.69190.78187.02188.41—
2026-03-11187.54192.99187.54190.48—
2026-03-12187.86188.91184.63184.9—
2026-03-13185.99188181.46181.55—
2026-03-16182.76184.62181.88183.26—
2026-03-17184.73186.52183.2185.29—
2026-03-18184.13184.32180.48182.31—
2026-03-19182.18185.45181.68183.41—
2026-03-20183.13183.69180.48181.46—
2026-03-23183.48185183.02183.64—
2026-03-24182.63184.84180.33183.94—
2026-03-25184.91189.38184.91189.18—
2026-03-26189192.27188.35191.06—
2026-03-27191.06191.06183.01183.84—
2026-03-30186.16190.09185.55187.57—
2026-03-31179.46184.68171.37183.33—
2026-04-01183.17186.31181.71183.78—
2026-04-02181.46182.23176.39177.34—
2026-04-06177177168.64172.34—
2026-04-07172.21175.61170.43175.61—
2026-04-08178.24180.17176.35179.9—
2026-04-09177.81180.06174.96177.11—
2026-04-10177.97177.97172.32172.97—
2026-04-13172.62176.79171.22176.37—

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