BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Advisory Services Network, LLC's Holding History (CIK: 0001573876)

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

Q4 2025

Shares 1,565 Value ($000) $275 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 1,792 Value ($000) $251 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 1,724 Value ($000) $221 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 2,068 Value ($000) $283 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 2,722 Value ($000) $416 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 3,206 Value ($000) $743 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 3,206 Value ($000) $743 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 3,663 Value ($000) $790 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 2,355 Value ($000) $609 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 3,215 Value ($000) $826 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 4,520 Value ($000) $1,288 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 5,273 Value ($000) $1,466 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 4,897 Value ($000) $1,356 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 3,266 Value ($000) $872 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 3,619 Value ($000) $739 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 4,150 Value ($000) $874 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 3,616 Value ($000) $868 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 4,132 Value ($000) $1,170 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 4,308 Value ($000) $1,492 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 4,555 Value ($000) $1,274 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 3,011 Value ($000) $738 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 3,068 Value ($000) $870 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 3,048 Value ($000) $815 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 2,422 Value ($000) $766 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 4,328 Value ($000) $1,284 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 3,406 Value ($000) $797 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 3,406 Value ($000) $797 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 2,838 Value ($000) $671 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 3,352 Value ($000) $1,009 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 3,428 Value ($000) $1,211 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 5,819 Value ($000) $2,006 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 6,939 Value ($000) $1,900 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 6,193 Value ($000) $1,973 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 5,864 Value ($000) $1,836 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 2,961 Value ($000) $803 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 2,903 Value ($000) $794 Avg Close $282.75 Range $260.50 - $301.42

Q3 2016

Shares 2,255 Value ($000) $706 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 2,004 Value ($000) $485 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 1,567 Value ($000) $408 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 1,681 Value ($000) $515 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 1,428 Value ($000) $417 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 2,393 Value ($000) $970 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 2,840 Value ($000) $1,174 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 1,928 Value ($000) $700 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 4,034 Value ($000) $1,334 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 5,236 Value ($000) $1,651 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 5,100 Value ($000) $1,560 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 3,495 Value ($000) $977 Avg Close $258.65 Range $221.07 - $298.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,565	$275	$163.37	$138.00 - $185.17
Q3 2025	1,792	$251	$135.17	$121.05 - $150.28
Q2 2025	1,724	$221	$124.60	$110.04 - $137.32
Q1 2025	2,068	$283	$142.96	$128.51 - $157.09
Q4 2024	2,722	$416	$168.67	$145.07 - $195.00
Q3 2024	3,206	$743	$209.21	$188.78 - $238.00
Q2 2024	3,206	$743	$217.32	$189.44 - $237.54
Q1 2024	3,663	$790	$234.20	$211.02 - $268.30
Q4 2023	2,355	$609	$245.62	$220.86 - $269.43
Q3 2023	3,215	$826	$267.47	$251.85 - $287.60
Q2 2023	4,520	$1,288	$297.86	$273.39 - $319.76
Q1 2023	5,273	$1,466	$276.70	$254.80 - $295.90
Q4 2022	4,897	$1,356	$282.44	$250.31 - $311.88
Q3 2022	3,266	$872	$212.38	$193.65 - $283.44
Q2 2022	3,619	$739	$204.43	$187.16 - $225.50
Q1 2022	4,150	$874	$217.46	$192.67 - $249.00
Q4 2021	3,616	$868	$257.12	$221.72 - $290.76
Q3 2021	4,132	$1,170	$327.75	$282.64 - $372.12
Q2 2021	4,308	$1,492	$302.94	$257.03 - $468.55
Q1 2021	4,555	$1,274	$269.69	$238.40 - $296.38
Q4 2020	3,011	$738	$259.08	$223.25 - $363.92
Q3 2020	3,068	$870	$278.91	$261.87 - $312.00
Q2 2020	3,048	$815	$300.59	$257.60 - $350.24
Q1 2020	2,422	$766	$303.47	$262.25 - $374.99
Q4 2019	4,328	$1,284	$277.46	$219.70 - $318.00
Q3 2019	3,406	$797	$232.85	$215.78 - $246.99
Q2 2019	3,406	$797	$230.90	$219.20 - $245.35
Q1 2019	2,838	$671	$314.89	$216.12 - $344.00
Q4 2018	3,352	$1,009	$319.14	$278.46 - $358.41
Q3 2018	3,428	$1,211	$344.30	$288.13 - $388.67
Q2 2018	5,819	$2,006	$281.15	$249.17 - $310.91
Q1 2018	6,939	$1,900	$310.41	$259.76 - $370.57
Q4 2017	6,193	$1,973	$320.80	$301.81 - $348.84
Q3 2017	5,864	$1,836	$296.11	$269.50 - $330.00
Q2 2017	2,961	$803	$264.42	$244.28 - $291.90
Q1 2017	2,903	$794	$282.75	$260.50 - $301.42
Q3 2016	2,255	$706	$296.18	$240.07 - $333.65
Q2 2016	2,004	$485	$263.54	$223.02 - $292.69
Q1 2016	1,567	$408	$264.15	$242.07 - $301.02
Q4 2015	1,681	$515	$287.35	$254.00 - $311.65
Q3 2015	1,428	$417	$330.23	$265.00 - $412.24
Q2 2015	2,393	$970	$401.33	$368.88 - $432.88
Q1 2015	2,840	$1,174	$394.14	$334.40 - $480.18
Q4 2014	1,928	$700	$323.51	$290.85 - $361.93
Q3 2014	4,034	$1,334	$329.72	$298.31 - $349.00
Q2 2014	5,236	$1,651	$300.97	$272.02 - $322.25
Q1 2014	5,100	$1,560	$317.43	$270.62 - $358.89
Q4 2013	3,495	$977	$258.65	$221.07 - $298.82