BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

APPLETON PARTNERS INC/MA's Holding History (CIK: 0001055290)

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

Q1 2021

Shares 910 Value ($000) $255 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 1,014 Value ($000) $248 Avg Close $259.08 Range $223.25 - $363.92

Q1 2020

Shares 833 Value ($000) $264 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 983 Value ($000) $292 Avg Close $277.46 Range $219.70 - $318.00

Q1 2019

Shares 948 Value ($000) $224 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 948 Value ($000) $285 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 3,395 Value ($000) $1,199 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 3,402 Value ($000) $987 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 3,476 Value ($000) $952 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 3,382 Value ($000) $1,077 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 3,369 Value ($000) $1,055 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 5,724 Value ($000) $1,553 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 3,390 Value ($000) $927 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 5,874 Value ($000) $1,666 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 6,084 Value ($000) $1,904 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 3,972 Value ($000) $961 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 4,293 Value ($000) $1,118 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 4,604 Value ($000) $1,410 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 4,081 Value ($000) $1,191 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 9,497 Value ($000) $3,836 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 9,271 Value ($000) $3,915 Avg Close $394.14 Range $334.40 - $480.18

Q1 2014

Shares 771 Value ($000) $236 Avg Close $317.43 Range $270.62 - $358.89

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	910	$255	$269.69	$238.40 - $296.38
Q4 2020	1,014	$248	$259.08	$223.25 - $363.92
Q1 2020	833	$264	$303.47	$262.25 - $374.99
Q4 2019	983	$292	$277.46	$219.70 - $318.00
Q1 2019	948	$224	$314.89	$216.12 - $344.00
Q4 2018	948	$285	$319.14	$278.46 - $358.41
Q3 2018	3,395	$1,199	$344.30	$288.13 - $388.67
Q2 2018	3,402	$987	$281.15	$249.17 - $310.91
Q1 2018	3,476	$952	$310.41	$259.76 - $370.57
Q4 2017	3,382	$1,077	$320.80	$301.81 - $348.84
Q3 2017	3,369	$1,055	$296.11	$269.50 - $330.00
Q2 2017	5,724	$1,553	$264.42	$244.28 - $291.90
Q1 2017	3,390	$927	$282.75	$260.50 - $301.42
Q4 2016	5,874	$1,666	$296.43	$268.00 - $329.83
Q3 2016	6,084	$1,904	$296.18	$240.07 - $333.65
Q2 2016	3,972	$961	$263.54	$223.02 - $292.69
Q1 2016	4,293	$1,118	$264.15	$242.07 - $301.02
Q4 2015	4,604	$1,410	$287.35	$254.00 - $311.65
Q3 2015	4,081	$1,191	$330.23	$265.00 - $412.24
Q2 2015	9,497	$3,836	$401.33	$368.88 - $432.88
Q1 2015	9,271	$3,915	$394.14	$334.40 - $480.18
Q1 2014	771	$236	$317.43	$270.62 - $358.89