BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

ORBIMED ADVISORS LLC's Holding History (CIK: 0001055951)

Note: Option positions (PUT/CALL) are excluded.

Q4 2024

Shares 509,100 Value ($000) $77,852 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 813,000 Value ($000) $157,592 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 900,900 Value ($000) $208,847 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 900,900 Value ($000) $194,261 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 827,600 Value ($000) $214,158 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 556,800 Value ($000) $143,103 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 556,800 Value ($000) $158,604 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 505,000 Value ($000) $140,405 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 258,200 Value ($000) $71,501 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 224,600 Value ($000) $59,968 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 111,600 Value ($000) $22,760 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 117,900 Value ($000) $24,830 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 230,200 Value ($000) $55,230 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 234,200 Value ($000) $66,276 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 67,400 Value ($000) $23,339 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 82,000 Value ($000) $22,940 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 529,400 Value ($000) $129,629 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 715,900 Value ($000) $203,087 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 715,900 Value ($000) $191,539 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 480,400 Value ($000) $151,989 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 64,500 Value ($000) $19,139 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 36,200 Value ($000) $8,428 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 87,700 Value ($000) $20,510 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 87,700 Value ($000) $20,731 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 835,249 Value ($000) $251,343 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 910,300 Value ($000) $321,618 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 1,167,900 Value ($000) $338,971 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 1,040,400 Value ($000) $284,882 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 1,230,700 Value ($000) $392,064 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 1,630,000 Value ($000) $510,386 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 1,630,000 Value ($000) $442,317 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 1,436,900 Value ($000) $392,877 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 1,281,200 Value ($000) $363,323 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 1,333,900 Value ($000) $417,551 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 1,500,400 Value ($000) $362,827 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 1,526,300 Value ($000) $397,326 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 1,442,500 Value ($000) $441,910 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 1,307,400 Value ($000) $381,512 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 1,278,900 Value ($000) $516,599 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 1,206,800 Value ($000) $509,559 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 1,494,700 Value ($000) $507,376 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 1,190,100 Value ($000) $393,697 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 1,084,200 Value ($000) $341,859 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 1,060,700 Value ($000) $324,436 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 1,095,100 Value ($000) $306,159 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 1,026,400 Value ($000) $247,116 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 1,025,800 Value ($000) $220,752 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2024	509,100	$77,852	$168.67	$145.07 - $195.00
Q3 2024	813,000	$157,592	$209.21	$188.78 - $238.00
Q2 2024	900,900	$208,847	$217.32	$189.44 - $237.54
Q1 2024	900,900	$194,261	$234.20	$211.02 - $268.30
Q4 2023	827,600	$214,158	$245.62	$220.86 - $269.43
Q3 2023	556,800	$143,103	$267.47	$251.85 - $287.60
Q2 2023	556,800	$158,604	$297.86	$273.39 - $319.76
Q1 2023	505,000	$140,405	$276.70	$254.80 - $295.90
Q4 2022	258,200	$71,501	$282.44	$250.31 - $311.88
Q3 2022	224,600	$59,968	$212.38	$193.65 - $283.44
Q2 2022	111,600	$22,760	$204.43	$187.16 - $225.50
Q1 2022	117,900	$24,830	$217.46	$192.67 - $249.00
Q4 2021	230,200	$55,230	$257.12	$221.72 - $290.76
Q3 2021	234,200	$66,276	$327.75	$282.64 - $372.12
Q2 2021	67,400	$23,339	$302.94	$257.03 - $468.55
Q1 2021	82,000	$22,940	$269.69	$238.40 - $296.38
Q4 2020	529,400	$129,629	$259.08	$223.25 - $363.92
Q3 2020	715,900	$203,087	$278.91	$261.87 - $312.00
Q2 2020	715,900	$191,539	$300.59	$257.60 - $350.24
Q1 2020	480,400	$151,989	$303.47	$262.25 - $374.99
Q4 2019	64,500	$19,139	$277.46	$219.70 - $318.00
Q3 2019	36,200	$8,428	$232.85	$215.78 - $246.99
Q2 2019	87,700	$20,510	$230.90	$219.20 - $245.35
Q1 2019	87,700	$20,731	$314.89	$216.12 - $344.00
Q4 2018	835,249	$251,343	$319.14	$278.46 - $358.41
Q3 2018	910,300	$321,618	$344.30	$288.13 - $388.67
Q2 2018	1,167,900	$338,971	$281.15	$249.17 - $310.91
Q1 2018	1,040,400	$284,882	$310.41	$259.76 - $370.57
Q4 2017	1,230,700	$392,064	$320.80	$301.81 - $348.84
Q3 2017	1,630,000	$510,386	$296.11	$269.50 - $330.00
Q2 2017	1,630,000	$442,317	$264.42	$244.28 - $291.90
Q1 2017	1,436,900	$392,877	$282.75	$260.50 - $301.42
Q4 2016	1,281,200	$363,323	$296.43	$268.00 - $329.83
Q3 2016	1,333,900	$417,551	$296.18	$240.07 - $333.65
Q2 2016	1,500,400	$362,827	$263.54	$223.02 - $292.69
Q1 2016	1,526,300	$397,326	$264.15	$242.07 - $301.02
Q4 2015	1,442,500	$441,910	$287.35	$254.00 - $311.65
Q3 2015	1,307,400	$381,512	$330.23	$265.00 - $412.24
Q2 2015	1,278,900	$516,599	$401.33	$368.88 - $432.88
Q1 2015	1,206,800	$509,559	$394.14	$334.40 - $480.18
Q4 2014	1,494,700	$507,376	$323.51	$290.85 - $361.93
Q3 2014	1,190,100	$393,697	$329.72	$298.31 - $349.00
Q2 2014	1,084,200	$341,859	$300.97	$272.02 - $322.25
Q1 2014	1,060,700	$324,436	$317.43	$270.62 - $358.89
Q4 2013	1,095,100	$306,159	$258.65	$221.07 - $298.82
Q3 2013	1,026,400	$247,116	$223.81	$203.55 - $248.95
Q2 2013	1,025,800	$220,752	$213.68	$191.80 - $242.64