BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Legal & General Group Plc's Holding History (CIK: 0000764068)

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

Q4 2025

Shares 1,459,597 Value ($000) $256,874 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 1,593,399 Value ($000) $223,203 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 1,446,816 Value ($000) $181,706 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 1,285,027 Value ($000) $175,843 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 1,230,007 Value ($000) $188,093 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 1,251,953 Value ($000) $242,678 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 1,270,132 Value ($000) $294,444 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 1,307,720 Value ($000) $281,984 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 1,325,096 Value ($000) $342,895 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 1,339,078 Value ($000) $344,157 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 1,369,521 Value ($000) $390,108 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 1,358,547 Value ($000) $377,717 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 1,380,659 Value ($000) $382,331 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 1,429,499 Value ($000) $381,678 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 1,455,970 Value ($000) $296,931 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 1,440,361 Value ($000) $303,340 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 1,358,080 Value ($000) $325,833 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 1,406,196 Value ($000) $397,940 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 1,385,692 Value ($000) $479,830 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 1,195,946 Value ($000) $334,567 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 1,230,474 Value ($000) $301,292 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 1,275,188 Value ($000) $361,743 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 1,310,433 Value ($000) $350,552 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 1,260,483 Value ($000) $398,610 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 1,255,408 Value ($000) $372,508 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 1,239,684 Value ($000) $288,587 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 1,222,682 Value ($000) $285,976 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 1,230,566 Value ($000) $290,868 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 1,005,111 Value ($000) $302,400 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 949,935 Value ($000) $335,634 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 972,195 Value ($000) $282,163 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 1,021,446 Value ($000) $279,690 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 1,063,136 Value ($000) $338,687 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 1,089,590 Value ($000) $341,155 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 1,072,719 Value ($000) $291,095 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 1,045,260 Value ($000) $285,785 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 1,006,040 Value ($000) $285,300 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 997,440 Value ($000) $312,218 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 992,538 Value ($000) $240,009 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 970,581 Value ($000) $252,656 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 957,415 Value ($000) $293,307 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 984,248 Value ($000) $287,207 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 948,865 Value ($000) $383,280 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 937,819 Value ($000) $395,994 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 940,927 Value ($000) $319,407 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 971,201 Value ($000) $321,280 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 1,000,171 Value ($000) $315,364 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 994,809 Value ($000) $304,282 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 1,018,502 Value ($000) $284,926 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 1,019,803 Value ($000) $245,528 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 1,022,062 Value ($000) $219,948 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,459,597	$256,874	$163.37	$138.00 - $185.17
Q3 2025	1,593,399	$223,203	$135.17	$121.05 - $150.28
Q2 2025	1,446,816	$181,706	$124.60	$110.04 - $137.32
Q1 2025	1,285,027	$175,843	$142.96	$128.51 - $157.09
Q4 2024	1,230,007	$188,093	$168.67	$145.07 - $195.00
Q3 2024	1,251,953	$242,678	$209.21	$188.78 - $238.00
Q2 2024	1,270,132	$294,444	$217.32	$189.44 - $237.54
Q1 2024	1,307,720	$281,984	$234.20	$211.02 - $268.30
Q4 2023	1,325,096	$342,895	$245.62	$220.86 - $269.43
Q3 2023	1,339,078	$344,157	$267.47	$251.85 - $287.60
Q2 2023	1,369,521	$390,108	$297.86	$273.39 - $319.76
Q1 2023	1,358,547	$377,717	$276.70	$254.80 - $295.90
Q4 2022	1,380,659	$382,331	$282.44	$250.31 - $311.88
Q3 2022	1,429,499	$381,678	$212.38	$193.65 - $283.44
Q2 2022	1,455,970	$296,931	$204.43	$187.16 - $225.50
Q1 2022	1,440,361	$303,340	$217.46	$192.67 - $249.00
Q4 2021	1,358,080	$325,833	$257.12	$221.72 - $290.76
Q3 2021	1,406,196	$397,940	$327.75	$282.64 - $372.12
Q2 2021	1,385,692	$479,830	$302.94	$257.03 - $468.55
Q1 2021	1,195,946	$334,567	$269.69	$238.40 - $296.38
Q4 2020	1,230,474	$301,292	$259.08	$223.25 - $363.92
Q3 2020	1,275,188	$361,743	$278.91	$261.87 - $312.00
Q2 2020	1,310,433	$350,552	$300.59	$257.60 - $350.24
Q1 2020	1,260,483	$398,610	$303.47	$262.25 - $374.99
Q4 2019	1,255,408	$372,508	$277.46	$219.70 - $318.00
Q3 2019	1,239,684	$288,587	$232.85	$215.78 - $246.99
Q2 2019	1,222,682	$285,976	$230.90	$219.20 - $245.35
Q1 2019	1,230,566	$290,868	$314.89	$216.12 - $344.00
Q4 2018	1,005,111	$302,400	$319.14	$278.46 - $358.41
Q3 2018	949,935	$335,634	$344.30	$288.13 - $388.67
Q2 2018	972,195	$282,163	$281.15	$249.17 - $310.91
Q1 2018	1,021,446	$279,690	$310.41	$259.76 - $370.57
Q4 2017	1,063,136	$338,687	$320.80	$301.81 - $348.84
Q3 2017	1,089,590	$341,155	$296.11	$269.50 - $330.00
Q2 2017	1,072,719	$291,095	$264.42	$244.28 - $291.90
Q1 2017	1,045,260	$285,785	$282.75	$260.50 - $301.42
Q4 2016	1,006,040	$285,300	$296.43	$268.00 - $329.83
Q3 2016	997,440	$312,218	$296.18	$240.07 - $333.65
Q2 2016	992,538	$240,009	$263.54	$223.02 - $292.69
Q1 2016	970,581	$252,656	$264.15	$242.07 - $301.02
Q4 2015	957,415	$293,307	$287.35	$254.00 - $311.65
Q3 2015	984,248	$287,207	$330.23	$265.00 - $412.24
Q2 2015	948,865	$383,280	$401.33	$368.88 - $432.88
Q1 2015	937,819	$395,994	$394.14	$334.40 - $480.18
Q4 2014	940,927	$319,407	$323.51	$290.85 - $361.93
Q3 2014	971,201	$321,280	$329.72	$298.31 - $349.00
Q2 2014	1,000,171	$315,364	$300.97	$272.02 - $322.25
Q1 2014	994,809	$304,282	$317.43	$270.62 - $358.89
Q4 2013	1,018,502	$284,926	$258.65	$221.07 - $298.82
Q3 2013	1,019,803	$245,528	$223.81	$203.55 - $248.95
Q2 2013	1,022,062	$219,948	$213.68	$191.80 - $242.64