BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

BRADLEY FOSTER & SARGENT INC/CT's Holding History (CIK: 0001015086)

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

Q1 2020

Shares 706 Value ($000) $224 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 706 Value ($000) $210 Avg Close $277.46 Range $219.70 - $318.00

Q2 2019

Shares 1,105 Value ($000) $258 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 1,565 Value ($000) $370 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 3,312 Value ($000) $997 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 4,130 Value ($000) $1,459 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 4,032 Value ($000) $1,170 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 4,477 Value ($000) $1,226 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 4,577 Value ($000) $1,458 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 4,532 Value ($000) $1,419 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 4,609 Value ($000) $1,251 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 5,324 Value ($000) $1,456 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 7,929 Value ($000) $2,249 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 40,417 Value ($000) $12,652 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 44,590 Value ($000) $10,783 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 43,893 Value ($000) $11,426 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 44,484 Value ($000) $13,628 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 4,875 Value ($000) $1,423 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 1,547 Value ($000) $625 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 1,413 Value ($000) $597 Avg Close $394.14 Range $334.40 - $480.18

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	706	$224	$303.47	$262.25 - $374.99
Q4 2019	706	$210	$277.46	$219.70 - $318.00
Q2 2019	1,105	$258	$230.90	$219.20 - $245.35
Q1 2019	1,565	$370	$314.89	$216.12 - $344.00
Q4 2018	3,312	$997	$319.14	$278.46 - $358.41
Q3 2018	4,130	$1,459	$344.30	$288.13 - $388.67
Q2 2018	4,032	$1,170	$281.15	$249.17 - $310.91
Q1 2018	4,477	$1,226	$310.41	$259.76 - $370.57
Q4 2017	4,577	$1,458	$320.80	$301.81 - $348.84
Q3 2017	4,532	$1,419	$296.11	$269.50 - $330.00
Q2 2017	4,609	$1,251	$264.42	$244.28 - $291.90
Q1 2017	5,324	$1,456	$282.75	$260.50 - $301.42
Q4 2016	7,929	$2,249	$296.43	$268.00 - $329.83
Q3 2016	40,417	$12,652	$296.18	$240.07 - $333.65
Q2 2016	44,590	$10,783	$263.54	$223.02 - $292.69
Q1 2016	43,893	$11,426	$264.15	$242.07 - $301.02
Q4 2015	44,484	$13,628	$287.35	$254.00 - $311.65
Q3 2015	4,875	$1,423	$330.23	$265.00 - $412.24
Q2 2015	1,547	$625	$401.33	$368.88 - $432.88
Q1 2015	1,413	$597	$394.14	$334.40 - $480.18