BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Asset Management Group, Inc.'s Holding History (CIK: 0001511550)

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

Q4 2017

Shares 632 Value ($000) $201 Avg Close $320.80 Range $301.81 - $348.84

Q3 2016

Shares 650 Value ($000) $203 Avg Close $296.18 Range $240.07 - $333.65

Q2 2015

Shares 650 Value ($000) $263 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 650 Value ($000) $274 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 650 Value ($000) $221 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 650 Value ($000) $215 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 650 Value ($000) $205 Avg Close $300.97 Range $272.02 - $322.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	632	$201	$320.80	$301.81 - $348.84
Q3 2016	650	$203	$296.18	$240.07 - $333.65
Q2 2015	650	$263	$401.33	$368.88 - $432.88
Q1 2015	650	$274	$394.14	$334.40 - $480.18
Q4 2014	650	$221	$323.51	$290.85 - $361.93
Q3 2014	650	$215	$329.72	$298.31 - $349.00
Q2 2014	650	$205	$300.97	$272.02 - $322.25