BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q4 2025

Shares 95,522 Value ($000) $16,811 Avg Close $163.37 Range $138.00 - $185.17

Q1 2025

Shares 11,191 Value ($000) $1,531 Avg Close $142.96 Range $128.51 - $157.09

Q3 2024

Shares 17,102 Value ($000) $3,315 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 13,839 Value ($000) $3,208 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 157 Value ($000) $34 Avg Close $234.20 Range $211.02 - $268.30

Q2 2023

Shares 6,800 Value ($000) $1,937 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 18,204 Value ($000) $5,061 Avg Close $276.70 Range $254.80 - $295.90

Q3 2022

Shares 1,511 Value ($000) $403 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 29,344 Value ($000) $5,984 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 19,011 Value ($000) $4,004 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 4,877 Value ($000) $1,170 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 9,412 Value ($000) $2,664 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 22,108 Value ($000) $7,655 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 2,759 Value ($000) $772 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 15,496 Value ($000) $3,794 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 6,200 Value ($000) $1,759 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 15,754 Value ($000) $4,215 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 13,960 Value ($000) $4,417 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 37,962 Value ($000) $11,264 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 4,515 Value ($000) $1,051 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 535 Value ($000) $125 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 4,781 Value ($000) $1,130 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 3,074 Value ($000) $925 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 7,260 Value ($000) $2,565 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 4,452 Value ($000) $1,292 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 22,669 Value ($000) $6,207 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 2,638 Value ($000) $840 Avg Close $320.80 Range $301.81 - $348.84

Q2 2017

Shares 1,554 Value ($000) $422 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 6,293 Value ($000) $1,721 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 6,962 Value ($000) $1,974 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 9,872 Value ($000) $3,090 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 15,420 Value ($000) $3,729 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 11,691 Value ($000) $3,043 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 29,081 Value ($000) $8,909 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 23,401 Value ($000) $6,829 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 39,485 Value ($000) $15,950 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 22,655 Value ($000) $9,566 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 7,000 Value ($000) $2,376 Avg Close $323.51 Range $290.85 - $361.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	95,522	$16,811	$163.37	$138.00 - $185.17
Q1 2025	11,191	$1,531	$142.96	$128.51 - $157.09
Q3 2024	17,102	$3,315	$209.21	$188.78 - $238.00
Q2 2024	13,839	$3,208	$217.32	$189.44 - $237.54
Q1 2024	157	$34	$234.20	$211.02 - $268.30
Q2 2023	6,800	$1,937	$297.86	$273.39 - $319.76
Q1 2023	18,204	$5,061	$276.70	$254.80 - $295.90
Q3 2022	1,511	$403	$212.38	$193.65 - $283.44
Q2 2022	29,344	$5,984	$204.43	$187.16 - $225.50
Q1 2022	19,011	$4,004	$217.46	$192.67 - $249.00
Q4 2021	4,877	$1,170	$257.12	$221.72 - $290.76
Q3 2021	9,412	$2,664	$327.75	$282.64 - $372.12
Q2 2021	22,108	$7,655	$302.94	$257.03 - $468.55
Q1 2021	2,759	$772	$269.69	$238.40 - $296.38
Q4 2020	15,496	$3,794	$259.08	$223.25 - $363.92
Q3 2020	6,200	$1,759	$278.91	$261.87 - $312.00
Q2 2020	15,754	$4,215	$300.59	$257.60 - $350.24
Q1 2020	13,960	$4,417	$303.47	$262.25 - $374.99
Q4 2019	37,962	$11,264	$277.46	$219.70 - $318.00
Q3 2019	4,515	$1,051	$232.85	$215.78 - $246.99
Q2 2019	535	$125	$230.90	$219.20 - $245.35
Q1 2019	4,781	$1,130	$314.89	$216.12 - $344.00
Q4 2018	3,074	$925	$319.14	$278.46 - $358.41
Q3 2018	7,260	$2,565	$344.30	$288.13 - $388.67
Q2 2018	4,452	$1,292	$281.15	$249.17 - $310.91
Q1 2018	22,669	$6,207	$310.41	$259.76 - $370.57
Q4 2017	2,638	$840	$320.80	$301.81 - $348.84
Q2 2017	1,554	$422	$264.42	$244.28 - $291.90
Q1 2017	6,293	$1,721	$282.75	$260.50 - $301.42
Q4 2016	6,962	$1,974	$296.43	$268.00 - $329.83
Q3 2016	9,872	$3,090	$296.18	$240.07 - $333.65
Q2 2016	15,420	$3,729	$263.54	$223.02 - $292.69
Q1 2016	11,691	$3,043	$264.15	$242.07 - $301.02
Q4 2015	29,081	$8,909	$287.35	$254.00 - $311.65
Q3 2015	23,401	$6,829	$330.23	$265.00 - $412.24
Q2 2015	39,485	$15,950	$401.33	$368.88 - $432.88
Q1 2015	22,655	$9,566	$394.14	$334.40 - $480.18
Q4 2014	7,000	$2,376	$323.51	$290.85 - $361.93