BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

JOHNSON INVESTMENT COUNSEL INC's Holding History (CIK: 0000821197)

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

Q4 2025

Shares 1,269 Value ($000) $223 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 1,429 Value ($000) $200 Avg Close $135.17 Range $121.05 - $150.28

Q1 2025

Shares 1,513 Value ($000) $207 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 1,679 Value ($000) $257 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 2,065 Value ($000) $400 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 1,965 Value ($000) $456 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 2,055 Value ($000) $443 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 2,055 Value ($000) $532 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 1,911 Value ($000) $491 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 1,930 Value ($000) $550 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 2,165 Value ($000) $602 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 2,180 Value ($000) $604 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 2,149 Value ($000) $574 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 2,221 Value ($000) $453 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 2,031 Value ($000) $428 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 2,026 Value ($000) $486 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 2,033 Value ($000) $575 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 2,063 Value ($000) $714 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 2,110 Value ($000) $590 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 3,288 Value ($000) $805 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 3,452 Value ($000) $979 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 3,485 Value ($000) $932 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 3,531 Value ($000) $1,117 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 4,119 Value ($000) $1,222 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 4,310 Value ($000) $1,003 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 5,126 Value ($000) $1,198 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 5,165 Value ($000) $1,220 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 6,600 Value ($000) $1,986 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 7,088 Value ($000) $2,504 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 18,101 Value ($000) $5,253 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 18,871 Value ($000) $5,167 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 22,681 Value ($000) $7,225 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 24,936 Value ($000) $7,807 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 24,508 Value ($000) $6,650 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 25,761 Value ($000) $7,043 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 26,365 Value ($000) $7,476 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 30,441 Value ($000) $9,528 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 33,291 Value ($000) $8,050 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 33,052 Value ($000) $8,604 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 32,355 Value ($000) $9,911 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 36,410 Value ($000) $10,600 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 31,362 Value ($000) $12,668 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 20,418 Value ($000) $8,621 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 1,746 Value ($000) $593 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 1,749 Value ($000) $578 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 2,101 Value ($000) $662 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 2,046 Value ($000) $625 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 2,117 Value ($000) $591 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 2,132 Value ($000) $513 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 2,272 Value ($000) $488 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,269	$223	$163.37	$138.00 - $185.17
Q3 2025	1,429	$200	$135.17	$121.05 - $150.28
Q1 2025	1,513	$207	$142.96	$128.51 - $157.09
Q4 2024	1,679	$257	$168.67	$145.07 - $195.00
Q3 2024	2,065	$400	$209.21	$188.78 - $238.00
Q2 2024	1,965	$456	$217.32	$189.44 - $237.54
Q1 2024	2,055	$443	$234.20	$211.02 - $268.30
Q4 2023	2,055	$532	$245.62	$220.86 - $269.43
Q3 2023	1,911	$491	$267.47	$251.85 - $287.60
Q2 2023	1,930	$550	$297.86	$273.39 - $319.76
Q1 2023	2,165	$602	$276.70	$254.80 - $295.90
Q4 2022	2,180	$604	$282.44	$250.31 - $311.88
Q3 2022	2,149	$574	$212.38	$193.65 - $283.44
Q2 2022	2,221	$453	$204.43	$187.16 - $225.50
Q1 2022	2,031	$428	$217.46	$192.67 - $249.00
Q4 2021	2,026	$486	$257.12	$221.72 - $290.76
Q3 2021	2,033	$575	$327.75	$282.64 - $372.12
Q2 2021	2,063	$714	$302.94	$257.03 - $468.55
Q1 2021	2,110	$590	$269.69	$238.40 - $296.38
Q4 2020	3,288	$805	$259.08	$223.25 - $363.92
Q3 2020	3,452	$979	$278.91	$261.87 - $312.00
Q2 2020	3,485	$932	$300.59	$257.60 - $350.24
Q1 2020	3,531	$1,117	$303.47	$262.25 - $374.99
Q4 2019	4,119	$1,222	$277.46	$219.70 - $318.00
Q3 2019	4,310	$1,003	$232.85	$215.78 - $246.99
Q2 2019	5,126	$1,198	$230.90	$219.20 - $245.35
Q1 2019	5,165	$1,220	$314.89	$216.12 - $344.00
Q4 2018	6,600	$1,986	$319.14	$278.46 - $358.41
Q3 2018	7,088	$2,504	$344.30	$288.13 - $388.67
Q2 2018	18,101	$5,253	$281.15	$249.17 - $310.91
Q1 2018	18,871	$5,167	$310.41	$259.76 - $370.57
Q4 2017	22,681	$7,225	$320.80	$301.81 - $348.84
Q3 2017	24,936	$7,807	$296.11	$269.50 - $330.00
Q2 2017	24,508	$6,650	$264.42	$244.28 - $291.90
Q1 2017	25,761	$7,043	$282.75	$260.50 - $301.42
Q4 2016	26,365	$7,476	$296.43	$268.00 - $329.83
Q3 2016	30,441	$9,528	$296.18	$240.07 - $333.65
Q2 2016	33,291	$8,050	$263.54	$223.02 - $292.69
Q1 2016	33,052	$8,604	$264.15	$242.07 - $301.02
Q4 2015	32,355	$9,911	$287.35	$254.00 - $311.65
Q3 2015	36,410	$10,600	$330.23	$265.00 - $412.24
Q2 2015	31,362	$12,668	$401.33	$368.88 - $432.88
Q1 2015	20,418	$8,621	$394.14	$334.40 - $480.18
Q4 2014	1,746	$593	$323.51	$290.85 - $361.93
Q3 2014	1,749	$578	$329.72	$298.31 - $349.00
Q2 2014	2,101	$662	$300.97	$272.02 - $322.25
Q1 2014	2,046	$625	$317.43	$270.62 - $358.89
Q4 2013	2,117	$591	$258.65	$221.07 - $298.82
Q3 2013	2,132	$513	$223.81	$203.55 - $248.95
Q2 2013	2,272	$488	$213.68	$191.80 - $242.64