BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

STEPHENS INC /AR/'s Holding History (CIK: 0000757657)

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

Q1 2025

Shares 2,056 Value ($000) $281 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 3,145 Value ($000) $481 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 5,415 Value ($000) $1,050 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 7,443 Value ($000) $1,725 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 8,192 Value ($000) $1,766 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 9,454 Value ($000) $2,446 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 9,724 Value ($000) $2,499 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 15,330 Value ($000) $4,367 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 16,647 Value ($000) $4,628 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 17,553 Value ($000) $4,861 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 20,885 Value ($000) $5,576 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 22,690 Value ($000) $4,627 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 23,031 Value ($000) $4,850 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 18,947 Value ($000) $4,546 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 15,995 Value ($000) $4,526 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 18,416 Value ($000) $6,377 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 11,915 Value ($000) $3,333 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 11,875 Value ($000) $2,908 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 10,855 Value ($000) $3,079 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 10,829 Value ($000) $2,897 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 11,603 Value ($000) $3,671 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 11,907 Value ($000) $3,533 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 12,240 Value ($000) $2,850 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 12,710 Value ($000) $2,972 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 17,981 Value ($000) $4,250 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 18,263 Value ($000) $5,496 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 17,478 Value ($000) $6,175 Avg Close $344.30 Range $288.13 - $388.67

Q2 2017

Shares 18,740 Value ($000) $5,085 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 18,607 Value ($000) $5,088 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 8,836 Value ($000) $2,506 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 9,624 Value ($000) $3,013 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 10,670 Value ($000) $2,580 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 9,967 Value ($000) $2,595 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 8,566 Value ($000) $2,624 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 8,776 Value ($000) $2,561 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 7,944 Value ($000) $3,209 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 8,066 Value ($000) $3,406 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 7,990 Value ($000) $2,712 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 9,035 Value ($000) $2,989 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 8,559 Value ($000) $2,699 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 8,019 Value ($000) $2,453 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 7,410 Value ($000) $2,072 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 6,613 Value ($000) $1,592 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 5,819 Value ($000) $1,252 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	2,056	$281	$142.96	$128.51 - $157.09
Q4 2024	3,145	$481	$168.67	$145.07 - $195.00
Q3 2024	5,415	$1,050	$209.21	$188.78 - $238.00
Q2 2024	7,443	$1,725	$217.32	$189.44 - $237.54
Q1 2024	8,192	$1,766	$234.20	$211.02 - $268.30
Q4 2023	9,454	$2,446	$245.62	$220.86 - $269.43
Q3 2023	9,724	$2,499	$267.47	$251.85 - $287.60
Q2 2023	15,330	$4,367	$297.86	$273.39 - $319.76
Q1 2023	16,647	$4,628	$276.70	$254.80 - $295.90
Q4 2022	17,553	$4,861	$282.44	$250.31 - $311.88
Q3 2022	20,885	$5,576	$212.38	$193.65 - $283.44
Q2 2022	22,690	$4,627	$204.43	$187.16 - $225.50
Q1 2022	23,031	$4,850	$217.46	$192.67 - $249.00
Q4 2021	18,947	$4,546	$257.12	$221.72 - $290.76
Q3 2021	15,995	$4,526	$327.75	$282.64 - $372.12
Q2 2021	18,416	$6,377	$302.94	$257.03 - $468.55
Q1 2021	11,915	$3,333	$269.69	$238.40 - $296.38
Q4 2020	11,875	$2,908	$259.08	$223.25 - $363.92
Q3 2020	10,855	$3,079	$278.91	$261.87 - $312.00
Q2 2020	10,829	$2,897	$300.59	$257.60 - $350.24
Q1 2020	11,603	$3,671	$303.47	$262.25 - $374.99
Q4 2019	11,907	$3,533	$277.46	$219.70 - $318.00
Q3 2019	12,240	$2,850	$232.85	$215.78 - $246.99
Q2 2019	12,710	$2,972	$230.90	$219.20 - $245.35
Q1 2019	17,981	$4,250	$314.89	$216.12 - $344.00
Q4 2018	18,263	$5,496	$319.14	$278.46 - $358.41
Q3 2018	17,478	$6,175	$344.30	$288.13 - $388.67
Q2 2017	18,740	$5,085	$264.42	$244.28 - $291.90
Q1 2017	18,607	$5,088	$282.75	$260.50 - $301.42
Q4 2016	8,836	$2,506	$296.43	$268.00 - $329.83
Q3 2016	9,624	$3,013	$296.18	$240.07 - $333.65
Q2 2016	10,670	$2,580	$263.54	$223.02 - $292.69
Q1 2016	9,967	$2,595	$264.15	$242.07 - $301.02
Q4 2015	8,566	$2,624	$287.35	$254.00 - $311.65
Q3 2015	8,776	$2,561	$330.23	$265.00 - $412.24
Q2 2015	7,944	$3,209	$401.33	$368.88 - $432.88
Q1 2015	8,066	$3,406	$394.14	$334.40 - $480.18
Q4 2014	7,990	$2,712	$323.51	$290.85 - $361.93
Q3 2014	9,035	$2,989	$329.72	$298.31 - $349.00
Q2 2014	8,559	$2,699	$300.97	$272.02 - $322.25
Q1 2014	8,019	$2,453	$317.43	$270.62 - $358.89
Q4 2013	7,410	$2,072	$258.65	$221.07 - $298.82
Q3 2013	6,613	$1,592	$223.81	$203.55 - $248.95
Q2 2013	5,819	$1,252	$213.68	$191.80 - $242.64