BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Mirae Asset Global Investments Co., Ltd.'s Holding History (CIK: 0001569395)

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

Q4 2025

Shares 35,107 Value ($000) $6,178 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 67,010 Value ($000) $9,387 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 61,023 Value ($000) $7,664 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 55,084 Value ($000) $7,622 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 47,553 Value ($000) $7,191 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 42,705 Value ($000) $8,313 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 35,195 Value ($000) $8,050 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 154,328 Value ($000) $39,401 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 160,724 Value ($000) $41,591 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 164,443 Value ($000) $42,263 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 141,161 Value ($000) $40,207 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 146,385 Value ($000) $40,699 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 189,491 Value ($000) $52,474 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 181,559 Value ($000) $48,476 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 158,499 Value ($000) $32,324 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 130,060 Value ($000) $27,391 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 104,397 Value ($000) $25,047 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 85,728 Value ($000) $24,260 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 69,269 Value ($000) $23,985 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 53,255 Value ($000) $14,898 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 77,700 Value ($000) $19,026 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 67,483 Value ($000) $19,143 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 58,959 Value ($000) $15,775 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 54,161 Value ($000) $17,136 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 44,266 Value ($000) $13,134 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 37,732 Value ($000) $8,786 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 36,022 Value ($000) $8,485 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 32,497 Value ($000) $7,647 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 30,030 Value ($000) $9,037 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 27,536 Value ($000) $9,747 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 29,709 Value ($000) $8,612 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 28,417 Value ($000) $7,781 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 23,878 Value ($000) $7,606 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 21,779 Value ($000) $6,802 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 18,162 Value ($000) $4,929 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 14,705 Value ($000) $4,020 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 67,103 Value ($000) $19,029 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 72,091 Value ($000) $22,567 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 78,129 Value ($000) $18,893 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 75,007 Value ($000) $19,526 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 92,480 Value ($000) $28,332 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 81,969 Value ($000) $23,919 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 85,018 Value ($000) $34,342 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 85,232 Value ($000) $35,987 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 111,969 Value ($000) $38,008 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 70,542 Value ($000) $23,336 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 86,860 Value ($000) $27,389 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 3,629 Value ($000) $1,110 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 752 Value ($000) $211 Avg Close $258.65 Range $221.07 - $298.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	35,107	$6,178	$163.37	$138.00 - $185.17
Q3 2025	67,010	$9,387	$135.17	$121.05 - $150.28
Q2 2025	61,023	$7,664	$124.60	$110.04 - $137.32
Q1 2025	55,084	$7,622	$142.96	$128.51 - $157.09
Q4 2024	47,553	$7,191	$168.67	$145.07 - $195.00
Q3 2024	42,705	$8,313	$209.21	$188.78 - $238.00
Q2 2024	35,195	$8,050	$217.32	$189.44 - $237.54
Q1 2024	154,328	$39,401	$234.20	$211.02 - $268.30
Q4 2023	160,724	$41,591	$245.62	$220.86 - $269.43
Q3 2023	164,443	$42,263	$267.47	$251.85 - $287.60
Q2 2023	141,161	$40,207	$297.86	$273.39 - $319.76
Q1 2023	146,385	$40,699	$276.70	$254.80 - $295.90
Q4 2022	189,491	$52,474	$282.44	$250.31 - $311.88
Q3 2022	181,559	$48,476	$212.38	$193.65 - $283.44
Q2 2022	158,499	$32,324	$204.43	$187.16 - $225.50
Q1 2022	130,060	$27,391	$217.46	$192.67 - $249.00
Q4 2021	104,397	$25,047	$257.12	$221.72 - $290.76
Q3 2021	85,728	$24,260	$327.75	$282.64 - $372.12
Q2 2021	69,269	$23,985	$302.94	$257.03 - $468.55
Q1 2021	53,255	$14,898	$269.69	$238.40 - $296.38
Q4 2020	77,700	$19,026	$259.08	$223.25 - $363.92
Q3 2020	67,483	$19,143	$278.91	$261.87 - $312.00
Q2 2020	58,959	$15,775	$300.59	$257.60 - $350.24
Q1 2020	54,161	$17,136	$303.47	$262.25 - $374.99
Q4 2019	44,266	$13,134	$277.46	$219.70 - $318.00
Q3 2019	37,732	$8,786	$232.85	$215.78 - $246.99
Q2 2019	36,022	$8,485	$230.90	$219.20 - $245.35
Q1 2019	32,497	$7,647	$314.89	$216.12 - $344.00
Q4 2018	30,030	$9,037	$319.14	$278.46 - $358.41
Q3 2018	27,536	$9,747	$344.30	$288.13 - $388.67
Q2 2018	29,709	$8,612	$281.15	$249.17 - $310.91
Q1 2018	28,417	$7,781	$310.41	$259.76 - $370.57
Q4 2017	23,878	$7,606	$320.80	$301.81 - $348.84
Q3 2017	21,779	$6,802	$296.11	$269.50 - $330.00
Q2 2017	18,162	$4,929	$264.42	$244.28 - $291.90
Q1 2017	14,705	$4,020	$282.75	$260.50 - $301.42
Q4 2016	67,103	$19,029	$296.43	$268.00 - $329.83
Q3 2016	72,091	$22,567	$296.18	$240.07 - $333.65
Q2 2016	78,129	$18,893	$263.54	$223.02 - $292.69
Q1 2016	75,007	$19,526	$264.15	$242.07 - $301.02
Q4 2015	92,480	$28,332	$287.35	$254.00 - $311.65
Q3 2015	81,969	$23,919	$330.23	$265.00 - $412.24
Q2 2015	85,018	$34,342	$401.33	$368.88 - $432.88
Q1 2015	85,232	$35,987	$394.14	$334.40 - $480.18
Q4 2014	111,969	$38,008	$323.51	$290.85 - $361.93
Q3 2014	70,542	$23,336	$329.72	$298.31 - $349.00
Q2 2014	86,860	$27,389	$300.97	$272.02 - $322.25
Q1 2014	3,629	$1,110	$317.43	$270.62 - $358.89
Q4 2013	752	$211	$258.65	$221.07 - $298.82