BIOGEN INC

CUSIP: 09062x103 Class: COM

GRANDFIELD & DODD, LLC's Holding History (CIK: 0001308016)

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

Q1 2020
Shares 983 Value ($000) $311 Avg Close Range
Q4 2019
Shares 961 Value ($000) $285 Avg Close Range
Q3 2019
Shares 961 Value ($000) $224 Avg Close Range
Q2 2019
Shares 961 Value ($000) $225 Avg Close Range
Q1 2019
Shares 1,027 Value ($000) $243 Avg Close Range
Q4 2018
Shares 1,027 Value ($000) $309 Avg Close Range
Q3 2018
Shares 1,027 Value ($000) $363 Avg Close Range
Q2 2018
Shares 1,027 Value ($000) $298 Avg Close Range
Q1 2018
Shares 1,147 Value ($000) $314 Avg Close Range
Q4 2017
Shares 1,147 Value ($000) $365 Avg Close Range
Q3 2017
Shares 1,147 Value ($000) $359 Avg Close Range
Q2 2017
Shares 1,147 Value ($000) $311 Avg Close Range
Q1 2017
Shares 1,147 Value ($000) $314 Avg Close Range
Q4 2016
Shares 1,547 Value ($000) $439 Avg Close Range
Q3 2016
Shares 1,547 Value ($000) $484 Avg Close Range
Q2 2016
Shares 1,547 Value ($000) $374 Avg Close Range
Q1 2016
Shares 1,547 Value ($000) $403 Avg Close Range
Q4 2015
Shares 1,547 Value ($000) $474 Avg Close Range
Q3 2015
Shares 1,597 Value ($000) $466 Avg Close Range
Q2 2015
Shares 1,637 Value ($000) $661 Avg Close Range
Q1 2015
Shares 1,889 Value ($000) $798 Avg Close Range
Q2 2014
Shares 2,404 Value ($000) $758 Avg Close Range
Q1 2014
Shares 2,504 Value ($000) $766 Avg Close Range
Q4 2013
Shares 2,604 Value ($000) $728 Avg Close Range