BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Winslow Capital Management, LLC's Holding History (CIK: 0000900973)

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

Q1 2018
Shares 4 Value ($000) $1 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 742,658 Value ($000) $236,589 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 682,672 Value ($000) $213,758 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 726,394 Value ($000) $197,114 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 1,262,317 Value ($000) $345,143 Avg Close $282.75 Range $260.50 - $301.42
Q2 2015
Shares 1,288,414 Value ($000) $520,441 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 1,902,328 Value ($000) $803,238 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 1,909,997 Value ($000) $648,348 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 2,032,921 Value ($000) $672,511 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 1,584,708 Value ($000) $499,674 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 2,120,998 Value ($000) $648,749 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 2,547,289 Value ($000) $712,151 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 2,621,575 Value ($000) $631,170 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 3,149,179 Value ($000) $677,703 Avg Close $213.68 Range $191.80 - $242.64