BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

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

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

Q3 2024
Shares 1,261 Value ($000) $244 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 1,199 Value ($000) $278 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 1,199 Value ($000) $259 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 1,199 Value ($000) $310 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 1,199 Value ($000) $308 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 1,199 Value ($000) $342 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 1,359 Value ($000) $378 Avg Close $276.70 Range $254.80 - $295.90
Q3 2021
Shares 823 Value ($000) $230 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 823 Value ($000) $280 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 823 Value ($000) $230 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 961 Value ($000) $240 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 961 Value ($000) $270 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 965 Value ($000) $260 Avg Close $300.59 Range $257.60 - $350.24
Q4 2014
Shares 1,959 Value ($000) $665 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 2,412 Value ($000) $798 Avg Close $329.72 Range $298.31 - $349.00
Q3 2013
Shares 2,604 Value ($000) $627 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 2,704 Value ($000) $582 Avg Close $213.68 Range $191.80 - $242.64