BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

INVESTMENT HOUSE LLC's Holding History (CIK: 0001566030)

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

Q4 2025

Shares 1,730 Value ($000) $304 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 1,730 Value ($000) $242 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 1,730 Value ($000) $217 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 3,219 Value ($000) $440 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 3,269 Value ($000) $500 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 3,269 Value ($000) $634 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 3,269 Value ($000) $758 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 3,269 Value ($000) $705 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 3,269 Value ($000) $846 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 3,336 Value ($000) $857 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 3,236 Value ($000) $922 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 3,660 Value ($000) $1,018 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 3,660 Value ($000) $1,014 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 3,660 Value ($000) $977 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 3,715 Value ($000) $758 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 3,987 Value ($000) $840 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 4,102 Value ($000) $984 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 4,202 Value ($000) $1,189 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 4,202 Value ($000) $1,455 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 4,202 Value ($000) $1,176 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 5,417 Value ($000) $1,326 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 6,439 Value ($000) $1,827 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 6,514 Value ($000) $1,743 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 6,589 Value ($000) $2,085 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 6,852 Value ($000) $2,033 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 7,000 Value ($000) $1,630 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 8,528 Value ($000) $1,994 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 7,097 Value ($000) $1,678 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 7,152 Value ($000) $2,152 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 10,720 Value ($000) $3,787 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 11,196 Value ($000) $3,250 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 11,010 Value ($000) $3,015 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 11,015 Value ($000) $3,509 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 11,697 Value ($000) $3,663 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 11,697 Value ($000) $3,174 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 11,787 Value ($000) $3,223 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 11,354 Value ($000) $3,220 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 11,414 Value ($000) $3,573 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 11,199 Value ($000) $2,708 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 11,344 Value ($000) $2,953 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 11,304 Value ($000) $3,463 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 11,554 Value ($000) $3,372 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 11,554 Value ($000) $4,667 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 11,606 Value ($000) $4,900 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 12,001 Value ($000) $4,074 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 12,201 Value ($000) $4,036 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 12,636 Value ($000) $3,984 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 12,703 Value ($000) $3,885 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 12,703 Value ($000) $3,551 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 12,718 Value ($000) $3,062 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 12,443 Value ($000) $2,678 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,730	$304	$163.37	$138.00 - $185.17
Q3 2025	1,730	$242	$135.17	$121.05 - $150.28
Q2 2025	1,730	$217	$124.60	$110.04 - $137.32
Q1 2025	3,219	$440	$142.96	$128.51 - $157.09
Q4 2024	3,269	$500	$168.67	$145.07 - $195.00
Q3 2024	3,269	$634	$209.21	$188.78 - $238.00
Q2 2024	3,269	$758	$217.32	$189.44 - $237.54
Q1 2024	3,269	$705	$234.20	$211.02 - $268.30
Q4 2023	3,269	$846	$245.62	$220.86 - $269.43
Q3 2023	3,336	$857	$267.47	$251.85 - $287.60
Q2 2023	3,236	$922	$297.86	$273.39 - $319.76
Q1 2023	3,660	$1,018	$276.70	$254.80 - $295.90
Q4 2022	3,660	$1,014	$282.44	$250.31 - $311.88
Q3 2022	3,660	$977	$212.38	$193.65 - $283.44
Q2 2022	3,715	$758	$204.43	$187.16 - $225.50
Q1 2022	3,987	$840	$217.46	$192.67 - $249.00
Q4 2021	4,102	$984	$257.12	$221.72 - $290.76
Q3 2021	4,202	$1,189	$327.75	$282.64 - $372.12
Q2 2021	4,202	$1,455	$302.94	$257.03 - $468.55
Q1 2021	4,202	$1,176	$269.69	$238.40 - $296.38
Q4 2020	5,417	$1,326	$259.08	$223.25 - $363.92
Q3 2020	6,439	$1,827	$278.91	$261.87 - $312.00
Q2 2020	6,514	$1,743	$300.59	$257.60 - $350.24
Q1 2020	6,589	$2,085	$303.47	$262.25 - $374.99
Q4 2019	6,852	$2,033	$277.46	$219.70 - $318.00
Q3 2019	7,000	$1,630	$232.85	$215.78 - $246.99
Q2 2019	8,528	$1,994	$230.90	$219.20 - $245.35
Q1 2019	7,097	$1,678	$314.89	$216.12 - $344.00
Q4 2018	7,152	$2,152	$319.14	$278.46 - $358.41
Q3 2018	10,720	$3,787	$344.30	$288.13 - $388.67
Q2 2018	11,196	$3,250	$281.15	$249.17 - $310.91
Q1 2018	11,010	$3,015	$310.41	$259.76 - $370.57
Q4 2017	11,015	$3,509	$320.80	$301.81 - $348.84
Q3 2017	11,697	$3,663	$296.11	$269.50 - $330.00
Q2 2017	11,697	$3,174	$264.42	$244.28 - $291.90
Q1 2017	11,787	$3,223	$282.75	$260.50 - $301.42
Q4 2016	11,354	$3,220	$296.43	$268.00 - $329.83
Q3 2016	11,414	$3,573	$296.18	$240.07 - $333.65
Q2 2016	11,199	$2,708	$263.54	$223.02 - $292.69
Q1 2016	11,344	$2,953	$264.15	$242.07 - $301.02
Q4 2015	11,304	$3,463	$287.35	$254.00 - $311.65
Q3 2015	11,554	$3,372	$330.23	$265.00 - $412.24
Q2 2015	11,554	$4,667	$401.33	$368.88 - $432.88
Q1 2015	11,606	$4,900	$394.14	$334.40 - $480.18
Q4 2014	12,001	$4,074	$323.51	$290.85 - $361.93
Q3 2014	12,201	$4,036	$329.72	$298.31 - $349.00
Q2 2014	12,636	$3,984	$300.97	$272.02 - $322.25
Q1 2014	12,703	$3,885	$317.43	$270.62 - $358.89
Q4 2013	12,703	$3,551	$258.65	$221.07 - $298.82
Q3 2013	12,718	$3,062	$223.81	$203.55 - $248.95
Q2 2013	12,443	$2,678	$213.68	$191.80 - $242.64