BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Independent Advisor Alliance's Holding History (CIK: 0001696899)

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

Q4 2025

Shares 5,987 Value ($000) $1,054 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 2,171 Value ($000) $304 Avg Close $135.17 Range $121.05 - $150.28

Q1 2025

Shares 2,008 Value ($000) $275 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 2,469 Value ($000) $378 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 8,289 Value ($000) $1,607 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 10,132 Value ($000) $2,349 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 9,343 Value ($000) $2,015 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 9,051 Value ($000) $2,342 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 8,688 Value ($000) $2,233 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 7,323 Value ($000) $2,086 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 7,298 Value ($000) $2,029 Avg Close $276.70 Range $254.80 - $295.90

Q3 2022

Shares 6,570 Value ($000) $1,754 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 6,256 Value ($000) $1,276 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 1,182 Value ($000) $249 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 1,080 Value ($000) $259 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 1,400 Value ($000) $396 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 1,277 Value ($000) $442 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 1,302 Value ($000) $364 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 1,324 Value ($000) $324 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 947 Value ($000) $269 Avg Close $278.91 Range $261.87 - $312.00

Q1 2020

Shares 637 Value ($000) $202 Avg Close $303.47 Range $262.25 - $374.99

Q1 2019

Shares 1,023 Value ($000) $242 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 919 Value ($000) $277 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 1,303 Value ($000) $392 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 4,763 Value ($000) $1,331 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 1,134 Value ($000) $304 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 1,876 Value ($000) $618 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 1,050 Value ($000) $346 Avg Close $296.11 Range $269.50 - $330.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,987	$1,054	$163.37	$138.00 - $185.17
Q3 2025	2,171	$304	$135.17	$121.05 - $150.28
Q1 2025	2,008	$275	$142.96	$128.51 - $157.09
Q4 2024	2,469	$378	$168.67	$145.07 - $195.00
Q3 2024	8,289	$1,607	$209.21	$188.78 - $238.00
Q2 2024	10,132	$2,349	$217.32	$189.44 - $237.54
Q1 2024	9,343	$2,015	$234.20	$211.02 - $268.30
Q4 2023	9,051	$2,342	$245.62	$220.86 - $269.43
Q3 2023	8,688	$2,233	$267.47	$251.85 - $287.60
Q2 2023	7,323	$2,086	$297.86	$273.39 - $319.76
Q1 2023	7,298	$2,029	$276.70	$254.80 - $295.90
Q3 2022	6,570	$1,754	$212.38	$193.65 - $283.44
Q2 2022	6,256	$1,276	$204.43	$187.16 - $225.50
Q1 2022	1,182	$249	$217.46	$192.67 - $249.00
Q4 2021	1,080	$259	$257.12	$221.72 - $290.76
Q3 2021	1,400	$396	$327.75	$282.64 - $372.12
Q2 2021	1,277	$442	$302.94	$257.03 - $468.55
Q1 2021	1,302	$364	$269.69	$238.40 - $296.38
Q4 2020	1,324	$324	$259.08	$223.25 - $363.92
Q3 2020	947	$269	$278.91	$261.87 - $312.00
Q1 2020	637	$202	$303.47	$262.25 - $374.99
Q1 2019	1,023	$242	$314.89	$216.12 - $344.00
Q4 2018	919	$277	$319.14	$278.46 - $358.41
Q3 2018	1,303	$392	$344.30	$288.13 - $388.67
Q2 2018	4,763	$1,331	$281.15	$249.17 - $310.91
Q1 2018	1,134	$304	$310.41	$259.76 - $370.57
Q4 2017	1,876	$618	$320.80	$301.81 - $348.84
Q3 2017	1,050	$346	$296.11	$269.50 - $330.00