BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

CIBC Asset Management Inc's Holding History (CIK: 0001021926)

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

Q4 2025

Shares 34,447 Value ($000) $6,062 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 45,113 Value ($000) $6,319 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 45,090 Value ($000) $5,663 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 47,261 Value ($000) $6,467 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 46,807 Value ($000) $7,158 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 45,184 Value ($000) $8,758 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 42,675 Value ($000) $9,893 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 42,880 Value ($000) $9,246 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 40,486 Value ($000) $10,477 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 40,451 Value ($000) $10,396 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 36,527 Value ($000) $10,405 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 36,725 Value ($000) $10,211 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 36,569 Value ($000) $10,127 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 36,513 Value ($000) $9,749 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 34,762 Value ($000) $7,089 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 30,881 Value ($000) $6,504 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 30,005 Value ($000) $7,199 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 27,876 Value ($000) $7,889 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 27,601 Value ($000) $9,557 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 26,975 Value ($000) $7,546 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 32,196 Value ($000) $7,884 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 30,531 Value ($000) $8,661 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 25,233 Value ($000) $6,751 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 26,510 Value ($000) $8,387 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 26,035 Value ($000) $7,725 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 27,153 Value ($000) $6,322 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 27,467 Value ($000) $6,424 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 27,526 Value ($000) $6,507 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 28,072 Value ($000) $8,447 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 27,635 Value ($000) $9,764 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 28,139 Value ($000) $8,167 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 26,904 Value ($000) $7,367 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 27,346 Value ($000) $8,712 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 28,263 Value ($000) $8,850 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 28,569 Value ($000) $7,752 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 27,396 Value ($000) $7,491 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 26,072 Value ($000) $7,393 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 25,728 Value ($000) $8,054 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 27,499 Value ($000) $6,650 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 27,277 Value ($000) $7,101 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 27,300 Value ($000) $8,363 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 28,760 Value ($000) $8,392 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 28,480 Value ($000) $11,504 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 27,365 Value ($000) $11,555 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 25,567 Value ($000) $8,679 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 32,485 Value ($000) $10,746 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 57,886 Value ($000) $18,252 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 58,451 Value ($000) $17,878 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 62,936 Value ($000) $17,595 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 65,792 Value ($000) $15,840 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 61,603 Value ($000) $13,257 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	34,447	$6,062	$163.37	$138.00 - $185.17
Q3 2025	45,113	$6,319	$135.17	$121.05 - $150.28
Q2 2025	45,090	$5,663	$124.60	$110.04 - $137.32
Q1 2025	47,261	$6,467	$142.96	$128.51 - $157.09
Q4 2024	46,807	$7,158	$168.67	$145.07 - $195.00
Q3 2024	45,184	$8,758	$209.21	$188.78 - $238.00
Q2 2024	42,675	$9,893	$217.32	$189.44 - $237.54
Q1 2024	42,880	$9,246	$234.20	$211.02 - $268.30
Q4 2023	40,486	$10,477	$245.62	$220.86 - $269.43
Q3 2023	40,451	$10,396	$267.47	$251.85 - $287.60
Q2 2023	36,527	$10,405	$297.86	$273.39 - $319.76
Q1 2023	36,725	$10,211	$276.70	$254.80 - $295.90
Q4 2022	36,569	$10,127	$282.44	$250.31 - $311.88
Q3 2022	36,513	$9,749	$212.38	$193.65 - $283.44
Q2 2022	34,762	$7,089	$204.43	$187.16 - $225.50
Q1 2022	30,881	$6,504	$217.46	$192.67 - $249.00
Q4 2021	30,005	$7,199	$257.12	$221.72 - $290.76
Q3 2021	27,876	$7,889	$327.75	$282.64 - $372.12
Q2 2021	27,601	$9,557	$302.94	$257.03 - $468.55
Q1 2021	26,975	$7,546	$269.69	$238.40 - $296.38
Q4 2020	32,196	$7,884	$259.08	$223.25 - $363.92
Q3 2020	30,531	$8,661	$278.91	$261.87 - $312.00
Q2 2020	25,233	$6,751	$300.59	$257.60 - $350.24
Q1 2020	26,510	$8,387	$303.47	$262.25 - $374.99
Q4 2019	26,035	$7,725	$277.46	$219.70 - $318.00
Q3 2019	27,153	$6,322	$232.85	$215.78 - $246.99
Q2 2019	27,467	$6,424	$230.90	$219.20 - $245.35
Q1 2019	27,526	$6,507	$314.89	$216.12 - $344.00
Q4 2018	28,072	$8,447	$319.14	$278.46 - $358.41
Q3 2018	27,635	$9,764	$344.30	$288.13 - $388.67
Q2 2018	28,139	$8,167	$281.15	$249.17 - $310.91
Q1 2018	26,904	$7,367	$310.41	$259.76 - $370.57
Q4 2017	27,346	$8,712	$320.80	$301.81 - $348.84
Q3 2017	28,263	$8,850	$296.11	$269.50 - $330.00
Q2 2017	28,569	$7,752	$264.42	$244.28 - $291.90
Q1 2017	27,396	$7,491	$282.75	$260.50 - $301.42
Q4 2016	26,072	$7,393	$296.43	$268.00 - $329.83
Q3 2016	25,728	$8,054	$296.18	$240.07 - $333.65
Q2 2016	27,499	$6,650	$263.54	$223.02 - $292.69
Q1 2016	27,277	$7,101	$264.15	$242.07 - $301.02
Q4 2015	27,300	$8,363	$287.35	$254.00 - $311.65
Q3 2015	28,760	$8,392	$330.23	$265.00 - $412.24
Q2 2015	28,480	$11,504	$401.33	$368.88 - $432.88
Q1 2015	27,365	$11,555	$394.14	$334.40 - $480.18
Q4 2014	25,567	$8,679	$323.51	$290.85 - $361.93
Q3 2014	32,485	$10,746	$329.72	$298.31 - $349.00
Q2 2014	57,886	$18,252	$300.97	$272.02 - $322.25
Q1 2014	58,451	$17,878	$317.43	$270.62 - $358.89
Q4 2013	62,936	$17,595	$258.65	$221.07 - $298.82
Q3 2013	65,792	$15,840	$223.81	$203.55 - $248.95
Q2 2013	61,603	$13,257	$213.68	$191.80 - $242.64