BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

REGIONS FINANCIAL CORP's Holding History (CIK: 0001281761)

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

Q4 2025

Shares 1,237 Value ($000) $218 Avg Close $163.37 Range $138.00 - $185.17

Q4 2024

Shares 1,354 Value ($000) $207 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 1,694 Value ($000) $328 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 1,695 Value ($000) $393 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 2,338 Value ($000) $504 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 1,873 Value ($000) $485 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 1,939 Value ($000) $498 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 2,188 Value ($000) $623 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 2,243 Value ($000) $1 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 2,024 Value ($000) $1 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 2,048 Value ($000) $546 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 2,138 Value ($000) $436 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 7,919 Value ($000) $1,667 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 8,374 Value ($000) $2,009 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 4,128 Value ($000) $1,168 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 5,191 Value ($000) $1,797 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 15,419 Value ($000) $4,314 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 40,786 Value ($000) $9,987 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 43,717 Value ($000) $12,402 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 41,644 Value ($000) $11,141 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 29,656 Value ($000) $9,383 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 1,766 Value ($000) $524 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 1,826 Value ($000) $425 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 2,344 Value ($000) $548 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 2,646 Value ($000) $625 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 2,809 Value ($000) $845 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 2,875 Value ($000) $1,015 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 2,902 Value ($000) $843 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 2,974 Value ($000) $815 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 3,301 Value ($000) $1,052 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 3,211 Value ($000) $1,006 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 5,051 Value ($000) $1,370 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 4,975 Value ($000) $1,360 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 5,105 Value ($000) $1,448 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 5,072 Value ($000) $1,588 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 4,937 Value ($000) $1,193 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 5,329 Value ($000) $1,387 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 6,001 Value ($000) $1,838 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 6,809 Value ($000) $1,987 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 8,875 Value ($000) $3,585 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 8,345 Value ($000) $3,524 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 8,240 Value ($000) $2,797 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 34,204 Value ($000) $11,315 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 35,243 Value ($000) $11,112 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 34,230 Value ($000) $10,470 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 36,395 Value ($000) $10,175 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 42,720 Value ($000) $10,285 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 46,053 Value ($000) $9,911 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,237	$218	$163.37	$138.00 - $185.17
Q4 2024	1,354	$207	$168.67	$145.07 - $195.00
Q3 2024	1,694	$328	$209.21	$188.78 - $238.00
Q2 2024	1,695	$393	$217.32	$189.44 - $237.54
Q1 2024	2,338	$504	$234.20	$211.02 - $268.30
Q4 2023	1,873	$485	$245.62	$220.86 - $269.43
Q3 2023	1,939	$498	$267.47	$251.85 - $287.60
Q2 2023	2,188	$623	$297.86	$273.39 - $319.76
Q1 2023	2,243	$1	$276.70	$254.80 - $295.90
Q4 2022	2,024	$1	$282.44	$250.31 - $311.88
Q3 2022	2,048	$546	$212.38	$193.65 - $283.44
Q2 2022	2,138	$436	$204.43	$187.16 - $225.50
Q1 2022	7,919	$1,667	$217.46	$192.67 - $249.00
Q4 2021	8,374	$2,009	$257.12	$221.72 - $290.76
Q3 2021	4,128	$1,168	$327.75	$282.64 - $372.12
Q2 2021	5,191	$1,797	$302.94	$257.03 - $468.55
Q1 2021	15,419	$4,314	$269.69	$238.40 - $296.38
Q4 2020	40,786	$9,987	$259.08	$223.25 - $363.92
Q3 2020	43,717	$12,402	$278.91	$261.87 - $312.00
Q2 2020	41,644	$11,141	$300.59	$257.60 - $350.24
Q1 2020	29,656	$9,383	$303.47	$262.25 - $374.99
Q4 2019	1,766	$524	$277.46	$219.70 - $318.00
Q3 2019	1,826	$425	$232.85	$215.78 - $246.99
Q2 2019	2,344	$548	$230.90	$219.20 - $245.35
Q1 2019	2,646	$625	$314.89	$216.12 - $344.00
Q4 2018	2,809	$845	$319.14	$278.46 - $358.41
Q3 2018	2,875	$1,015	$344.30	$288.13 - $388.67
Q2 2018	2,902	$843	$281.15	$249.17 - $310.91
Q1 2018	2,974	$815	$310.41	$259.76 - $370.57
Q4 2017	3,301	$1,052	$320.80	$301.81 - $348.84
Q3 2017	3,211	$1,006	$296.11	$269.50 - $330.00
Q2 2017	5,051	$1,370	$264.42	$244.28 - $291.90
Q1 2017	4,975	$1,360	$282.75	$260.50 - $301.42
Q4 2016	5,105	$1,448	$296.43	$268.00 - $329.83
Q3 2016	5,072	$1,588	$296.18	$240.07 - $333.65
Q2 2016	4,937	$1,193	$263.54	$223.02 - $292.69
Q1 2016	5,329	$1,387	$264.15	$242.07 - $301.02
Q4 2015	6,001	$1,838	$287.35	$254.00 - $311.65
Q3 2015	6,809	$1,987	$330.23	$265.00 - $412.24
Q2 2015	8,875	$3,585	$401.33	$368.88 - $432.88
Q1 2015	8,345	$3,524	$394.14	$334.40 - $480.18
Q4 2014	8,240	$2,797	$323.51	$290.85 - $361.93
Q3 2014	34,204	$11,315	$329.72	$298.31 - $349.00
Q2 2014	35,243	$11,112	$300.97	$272.02 - $322.25
Q1 2014	34,230	$10,470	$317.43	$270.62 - $358.89
Q4 2013	36,395	$10,175	$258.65	$221.07 - $298.82
Q3 2013	42,720	$10,285	$223.81	$203.55 - $248.95
Q2 2013	46,053	$9,911	$213.68	$191.80 - $242.64