BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Daiwa Securities Group Inc.'s Holding History (CIK: 0001481045)

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

Q4 2025

Shares 26,277 Value ($000) $5 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 44,075 Value ($000) $6 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 39,128 Value ($000) $5 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 43,393 Value ($000) $6 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 37,221 Value ($000) $6 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 31,594 Value ($000) $6 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 24,848 Value ($000) $6 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 22,651 Value ($000) $5 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 20,479 Value ($000) $5 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 27,079 Value ($000) $7 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 18,637 Value ($000) $5 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 18,129 Value ($000) $5 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 16,270 Value ($000) $5 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 15,854 Value ($000) $4,233 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 16,872 Value ($000) $3,440 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 16,239 Value ($000) $3,419 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 14,512 Value ($000) $3,481 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 12,927 Value ($000) $3,658 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 12,244 Value ($000) $4,240 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 16,911 Value ($000) $4,731 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 11,853 Value ($000) $2,902 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 11,826 Value ($000) $3,355 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 12,049 Value ($000) $3,770 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 11,189 Value ($000) $3,540 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 9,798 Value ($000) $2,907 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 9,938 Value ($000) $2,314 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 8,570 Value ($000) $2,004 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 9,857 Value ($000) $2,330 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 12,113 Value ($000) $3,645 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 17,825 Value ($000) $6,297 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 9,855 Value ($000) $2,861 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 9,575 Value ($000) $2,622 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 7,950 Value ($000) $2,532 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 7,806 Value ($000) $2,445 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 6,230 Value ($000) $1,691 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 25,710 Value ($000) $7,030 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 25,539 Value ($000) $7,242 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 17,300 Value ($000) $5,415 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 17,250 Value ($000) $4,171 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 11,850 Value ($000) $3,085 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 5,380 Value ($000) $1,648 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 27,880 Value ($000) $8,136 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 37,650 Value ($000) $15,208 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 18,550 Value ($000) $7,833 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 14,700 Value ($000) $4,990 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 6,130 Value ($000) $2,028 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 6,230 Value ($000) $1,964 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 6,530 Value ($000) $1,997 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 6,530 Value ($000) $1,826 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 7,130 Value ($000) $1,717 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 7,130 Value ($000) $1,534 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	26,277	$5	$163.37	$138.00 - $185.17
Q3 2025	44,075	$6	$135.17	$121.05 - $150.28
Q2 2025	39,128	$5	$124.60	$110.04 - $137.32
Q1 2025	43,393	$6	$142.96	$128.51 - $157.09
Q4 2024	37,221	$6	$168.67	$145.07 - $195.00
Q3 2024	31,594	$6	$209.21	$188.78 - $238.00
Q2 2024	24,848	$6	$217.32	$189.44 - $237.54
Q1 2024	22,651	$5	$234.20	$211.02 - $268.30
Q4 2023	20,479	$5	$245.62	$220.86 - $269.43
Q3 2023	27,079	$7	$267.47	$251.85 - $287.60
Q2 2023	18,637	$5	$297.86	$273.39 - $319.76
Q1 2023	18,129	$5	$276.70	$254.80 - $295.90
Q4 2022	16,270	$5	$282.44	$250.31 - $311.88
Q3 2022	15,854	$4,233	$212.38	$193.65 - $283.44
Q2 2022	16,872	$3,440	$204.43	$187.16 - $225.50
Q1 2022	16,239	$3,419	$217.46	$192.67 - $249.00
Q4 2021	14,512	$3,481	$257.12	$221.72 - $290.76
Q3 2021	12,927	$3,658	$327.75	$282.64 - $372.12
Q2 2021	12,244	$4,240	$302.94	$257.03 - $468.55
Q1 2021	16,911	$4,731	$269.69	$238.40 - $296.38
Q4 2020	11,853	$2,902	$259.08	$223.25 - $363.92
Q3 2020	11,826	$3,355	$278.91	$261.87 - $312.00
Q2 2020	12,049	$3,770	$300.59	$257.60 - $350.24
Q1 2020	11,189	$3,540	$303.47	$262.25 - $374.99
Q4 2019	9,798	$2,907	$277.46	$219.70 - $318.00
Q3 2019	9,938	$2,314	$232.85	$215.78 - $246.99
Q2 2019	8,570	$2,004	$230.90	$219.20 - $245.35
Q1 2019	9,857	$2,330	$314.89	$216.12 - $344.00
Q4 2018	12,113	$3,645	$319.14	$278.46 - $358.41
Q3 2018	17,825	$6,297	$344.30	$288.13 - $388.67
Q2 2018	9,855	$2,861	$281.15	$249.17 - $310.91
Q1 2018	9,575	$2,622	$310.41	$259.76 - $370.57
Q4 2017	7,950	$2,532	$320.80	$301.81 - $348.84
Q3 2017	7,806	$2,445	$296.11	$269.50 - $330.00
Q2 2017	6,230	$1,691	$264.42	$244.28 - $291.90
Q1 2017	25,710	$7,030	$282.75	$260.50 - $301.42
Q4 2016	25,539	$7,242	$296.43	$268.00 - $329.83
Q3 2016	17,300	$5,415	$296.18	$240.07 - $333.65
Q2 2016	17,250	$4,171	$263.54	$223.02 - $292.69
Q1 2016	11,850	$3,085	$264.15	$242.07 - $301.02
Q4 2015	5,380	$1,648	$287.35	$254.00 - $311.65
Q3 2015	27,880	$8,136	$330.23	$265.00 - $412.24
Q2 2015	37,650	$15,208	$401.33	$368.88 - $432.88
Q1 2015	18,550	$7,833	$394.14	$334.40 - $480.18
Q4 2014	14,700	$4,990	$323.51	$290.85 - $361.93
Q3 2014	6,130	$2,028	$329.72	$298.31 - $349.00
Q2 2014	6,230	$1,964	$300.97	$272.02 - $322.25
Q1 2014	6,530	$1,997	$317.43	$270.62 - $358.89
Q4 2013	6,530	$1,826	$258.65	$221.07 - $298.82
Q3 2013	7,130	$1,717	$223.81	$203.55 - $248.95
Q2 2013	7,130	$1,534	$213.68	$191.80 - $242.64