BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

BANK OF NOVA SCOTIA's Holding History (CIK: 0000009631)

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

Q4 2025

Shares 22,695 Value ($000) $3,994 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 24,351 Value ($000) $3,411 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 16,334 Value ($000) $2,051 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 16,311 Value ($000) $2,232 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 20,552 Value ($000) $3,143 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 18,637 Value ($000) $3,613 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 15,152 Value ($000) $3,513 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 103,059 Value ($000) $22,223 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 160,263 Value ($000) $41,470 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 30,094 Value ($000) $7,734 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 13,058 Value ($000) $3,720 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 11,316 Value ($000) $3,146 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 13,240 Value ($000) $3,666 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 11,992 Value ($000) $3,202 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 12,097 Value ($000) $2,466 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 18,254 Value ($000) $3,844 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 31,587 Value ($000) $7,579 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 24,306 Value ($000) $6,879 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 22,622 Value ($000) $7,832 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 28,456 Value ($000) $7,961 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 25,839 Value ($000) $6,327 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 20,929 Value ($000) $5,937 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 83,265 Value ($000) $22,277 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 46,605 Value ($000) $14,745 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 396,087 Value ($000) $117,531 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 201,377 Value ($000) $46,885 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 121,163 Value ($000) $28,336 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 121,422 Value ($000) $28,702 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 61,911 Value ($000) $18,630 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 43,213 Value ($000) $15,276 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 24,287 Value ($000) $7,048 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 28,782 Value ($000) $7,879 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 33,903 Value ($000) $10,800 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 38,218 Value ($000) $11,967 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 48,245 Value ($000) $13,092 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 49,449 Value ($000) $13,521 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 4,873 Value ($000) $1,382 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 4,453 Value ($000) $1,394 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 4,373 Value ($000) $1,057 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 4,163 Value ($000) $1,084 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 4,166 Value ($000) $1,276 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 4,384 Value ($000) $1,279 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 39,224 Value ($000) $15,844 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 4,038 Value ($000) $1,705 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 53,972 Value ($000) $18,321 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 3,940 Value ($000) $1,303 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 3,790 Value ($000) $1,195 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 3,537 Value ($000) $1,081 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 3,326 Value ($000) $930 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 3,185 Value ($000) $767 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 163,300 Value ($000) $35,142 Avg Close $213.68 Range $191.80 - $242.64

Q1 2013

Shares 36,124 Value ($000) $6,969 Avg Close $161.63 Range $139.72 - $192.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	22,695	$3,994	$163.37	$138.00 - $185.17
Q3 2025	24,351	$3,411	$135.17	$121.05 - $150.28
Q2 2025	16,334	$2,051	$124.60	$110.04 - $137.32
Q1 2025	16,311	$2,232	$142.96	$128.51 - $157.09
Q4 2024	20,552	$3,143	$168.67	$145.07 - $195.00
Q3 2024	18,637	$3,613	$209.21	$188.78 - $238.00
Q2 2024	15,152	$3,513	$217.32	$189.44 - $237.54
Q1 2024	103,059	$22,223	$234.20	$211.02 - $268.30
Q4 2023	160,263	$41,470	$245.62	$220.86 - $269.43
Q3 2023	30,094	$7,734	$267.47	$251.85 - $287.60
Q2 2023	13,058	$3,720	$297.86	$273.39 - $319.76
Q1 2023	11,316	$3,146	$276.70	$254.80 - $295.90
Q4 2022	13,240	$3,666	$282.44	$250.31 - $311.88
Q3 2022	11,992	$3,202	$212.38	$193.65 - $283.44
Q2 2022	12,097	$2,466	$204.43	$187.16 - $225.50
Q1 2022	18,254	$3,844	$217.46	$192.67 - $249.00
Q4 2021	31,587	$7,579	$257.12	$221.72 - $290.76
Q3 2021	24,306	$6,879	$327.75	$282.64 - $372.12
Q2 2021	22,622	$7,832	$302.94	$257.03 - $468.55
Q1 2021	28,456	$7,961	$269.69	$238.40 - $296.38
Q4 2020	25,839	$6,327	$259.08	$223.25 - $363.92
Q3 2020	20,929	$5,937	$278.91	$261.87 - $312.00
Q2 2020	83,265	$22,277	$300.59	$257.60 - $350.24
Q1 2020	46,605	$14,745	$303.47	$262.25 - $374.99
Q4 2019	396,087	$117,531	$277.46	$219.70 - $318.00
Q3 2019	201,377	$46,885	$232.85	$215.78 - $246.99
Q2 2019	121,163	$28,336	$230.90	$219.20 - $245.35
Q1 2019	121,422	$28,702	$314.89	$216.12 - $344.00
Q4 2018	61,911	$18,630	$319.14	$278.46 - $358.41
Q3 2018	43,213	$15,276	$344.30	$288.13 - $388.67
Q2 2018	24,287	$7,048	$281.15	$249.17 - $310.91
Q1 2018	28,782	$7,879	$310.41	$259.76 - $370.57
Q4 2017	33,903	$10,800	$320.80	$301.81 - $348.84
Q3 2017	38,218	$11,967	$296.11	$269.50 - $330.00
Q2 2017	48,245	$13,092	$264.42	$244.28 - $291.90
Q1 2017	49,449	$13,521	$282.75	$260.50 - $301.42
Q4 2016	4,873	$1,382	$296.43	$268.00 - $329.83
Q3 2016	4,453	$1,394	$296.18	$240.07 - $333.65
Q2 2016	4,373	$1,057	$263.54	$223.02 - $292.69
Q1 2016	4,163	$1,084	$264.15	$242.07 - $301.02
Q4 2015	4,166	$1,276	$287.35	$254.00 - $311.65
Q3 2015	4,384	$1,279	$330.23	$265.00 - $412.24
Q2 2015	39,224	$15,844	$401.33	$368.88 - $432.88
Q1 2015	4,038	$1,705	$394.14	$334.40 - $480.18
Q4 2014	53,972	$18,321	$323.51	$290.85 - $361.93
Q3 2014	3,940	$1,303	$329.72	$298.31 - $349.00
Q2 2014	3,790	$1,195	$300.97	$272.02 - $322.25
Q1 2014	3,537	$1,081	$317.43	$270.62 - $358.89
Q4 2013	3,326	$930	$258.65	$221.07 - $298.82
Q3 2013	3,185	$767	$223.81	$203.55 - $248.95
Q2 2013	163,300	$35,142	$213.68	$191.80 - $242.64
Q1 2013	36,124	$6,969	$161.63	$139.72 - $192.92