BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Analyst IMS Investment Management Services Ltd.'s Holding History (CIK: 0001634208)

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

Q4 2025

Shares 1,208 Value ($000) $0 Avg Close $163.37 Range $138.00 - $185.17

Q1 2025

Shares 1,527 Value ($000) $0 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 1,527 Value ($000) $0 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 1,527 Value ($000) $0 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 1,527 Value ($000) $0 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 1,527 Value ($000) $0 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 1,488 Value ($000) $0 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 1,488 Value ($000) $0 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 1,488 Value ($000) $0 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 1,488 Value ($000) $0 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 1,488 Value ($000) $0 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 1,488 Value ($000) $393 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 1,488 Value ($000) $303 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 1,488 Value ($000) $313 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 1,572 Value ($000) $377 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 1,572 Value ($000) $445 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 1,572 Value ($000) $544 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 2,252 Value ($000) $629 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 2,252 Value ($000) $552 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 2,252 Value ($000) $639 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 2,252 Value ($000) $602 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 2,252 Value ($000) $713 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 5,058 Value ($000) $1,501 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 6,458 Value ($000) $1,487 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 6,458 Value ($000) $1,510 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 6,873 Value ($000) $1,624 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 15,446 Value ($000) $4,614 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 7,763 Value ($000) $2,746 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 8,232 Value ($000) $2,377 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 8,314 Value ($000) $2,277 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 8,449 Value ($000) $2,692 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 8,675 Value ($000) $2,689 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 8,705 Value ($000) $2,363 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 8,805 Value ($000) $2,393 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 8,697 Value ($000) $2,467 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 9,236 Value ($000) $2,891 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 9,109 Value ($000) $2,203 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 9,453 Value ($000) $2,460 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 9,826 Value ($000) $3,010 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 9,011 Value ($000) $2,629 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 5,297 Value ($000) $2,140 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 4,585 Value ($000) $1,936 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 752 Value ($000) $255 Avg Close $323.51 Range $290.85 - $361.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,208	$0	$163.37	$138.00 - $185.17
Q1 2025	1,527	$0	$142.96	$128.51 - $157.09
Q4 2024	1,527	$0	$168.67	$145.07 - $195.00
Q3 2024	1,527	$0	$209.21	$188.78 - $238.00
Q2 2024	1,527	$0	$217.32	$189.44 - $237.54
Q1 2024	1,527	$0	$234.20	$211.02 - $268.30
Q4 2023	1,488	$0	$245.62	$220.86 - $269.43
Q3 2023	1,488	$0	$267.47	$251.85 - $287.60
Q2 2023	1,488	$0	$297.86	$273.39 - $319.76
Q1 2023	1,488	$0	$276.70	$254.80 - $295.90
Q4 2022	1,488	$0	$282.44	$250.31 - $311.88
Q3 2022	1,488	$393	$212.38	$193.65 - $283.44
Q2 2022	1,488	$303	$204.43	$187.16 - $225.50
Q1 2022	1,488	$313	$217.46	$192.67 - $249.00
Q4 2021	1,572	$377	$257.12	$221.72 - $290.76
Q3 2021	1,572	$445	$327.75	$282.64 - $372.12
Q2 2021	1,572	$544	$302.94	$257.03 - $468.55
Q1 2021	2,252	$629	$269.69	$238.40 - $296.38
Q4 2020	2,252	$552	$259.08	$223.25 - $363.92
Q3 2020	2,252	$639	$278.91	$261.87 - $312.00
Q2 2020	2,252	$602	$300.59	$257.60 - $350.24
Q1 2020	2,252	$713	$303.47	$262.25 - $374.99
Q4 2019	5,058	$1,501	$277.46	$219.70 - $318.00
Q3 2019	6,458	$1,487	$232.85	$215.78 - $246.99
Q2 2019	6,458	$1,510	$230.90	$219.20 - $245.35
Q1 2019	6,873	$1,624	$314.89	$216.12 - $344.00
Q4 2018	15,446	$4,614	$319.14	$278.46 - $358.41
Q3 2018	7,763	$2,746	$344.30	$288.13 - $388.67
Q2 2018	8,232	$2,377	$281.15	$249.17 - $310.91
Q1 2018	8,314	$2,277	$310.41	$259.76 - $370.57
Q4 2017	8,449	$2,692	$320.80	$301.81 - $348.84
Q3 2017	8,675	$2,689	$296.11	$269.50 - $330.00
Q2 2017	8,705	$2,363	$264.42	$244.28 - $291.90
Q1 2017	8,805	$2,393	$282.75	$260.50 - $301.42
Q4 2016	8,697	$2,467	$296.43	$268.00 - $329.83
Q3 2016	9,236	$2,891	$296.18	$240.07 - $333.65
Q2 2016	9,109	$2,203	$263.54	$223.02 - $292.69
Q1 2016	9,453	$2,460	$264.15	$242.07 - $301.02
Q4 2015	9,826	$3,010	$287.35	$254.00 - $311.65
Q3 2015	9,011	$2,629	$330.23	$265.00 - $412.24
Q2 2015	5,297	$2,140	$401.33	$368.88 - $432.88
Q1 2015	4,585	$1,936	$394.14	$334.40 - $480.18
Q4 2014	752	$255	$323.51	$290.85 - $361.93