BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

GUARDIAN CAPITAL LP's Holding History (CIK: 0001224324)

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

Q1 2018
Shares 1,343 Value ($000) $367 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 1,373 Value ($000) $437 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 869 Value ($000) $272 Avg Close $296.11 Range $269.50 - $330.00
Q4 2016
Shares 719 Value ($000) $204 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 843 Value ($000) $264 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 878 Value ($000) $212 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 878 Value ($000) $229 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 1,127 Value ($000) $345 Avg Close $287.35 Range $254.00 - $311.65
Q2 2015
Shares 628 Value ($000) $254 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 2,820 Value ($000) $1,191 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 2,773 Value ($000) $941 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 4,192 Value ($000) $1,387 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 2,718 Value ($000) $857 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 2,068 Value ($000) $633 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 1,546 Value ($000) $432 Avg Close $258.65 Range $221.07 - $298.82