BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

BAMCO INC /NY/'s Holding History (CIK: 0001017918)

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

Q4 2018
Shares 10,175 Value ($000) $3,062 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 10,175 Value ($000) $3,595 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 10,085 Value ($000) $2,927 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 17,193 Value ($000) $4,708 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 14,868 Value ($000) $4,736 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 12,951 Value ($000) $4,055 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 12,935 Value ($000) $3,510 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 6,625 Value ($000) $1,811 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 6,625 Value ($000) $1,879 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 6,577 Value ($000) $2,059 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 19,621 Value ($000) $4,745 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 16,047 Value ($000) $4,177 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 10,240 Value ($000) $3,137 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 11,814 Value ($000) $3,447 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 9,144 Value ($000) $3,694 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 9,144 Value ($000) $3,861 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 9,144 Value ($000) $3,104 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 8,613 Value ($000) $2,849 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 8,632 Value ($000) $2,722 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 6,089 Value ($000) $1,862 Avg Close $317.43 Range $270.62 - $358.89