BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

NORTHEAST INVESTMENT MANAGEMENT's Holding History (CIK: 0001082215)

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

Q1 2016

Shares 1,657 Value ($000) $431 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 1,875 Value ($000) $574 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 16,342 Value ($000) $4,769 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 13,632 Value ($000) $5,507 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 12,714 Value ($000) $5,368 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 9,811 Value ($000) $3,330 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 6,075 Value ($000) $2,010 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 2,726 Value ($000) $860 Avg Close $300.97 Range $272.02 - $322.25

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	1,657	$431	$264.15	$242.07 - $301.02
Q4 2015	1,875	$574	$287.35	$254.00 - $311.65
Q3 2015	16,342	$4,769	$330.23	$265.00 - $412.24
Q2 2015	13,632	$5,507	$401.33	$368.88 - $432.88
Q1 2015	12,714	$5,368	$394.14	$334.40 - $480.18
Q4 2014	9,811	$3,330	$323.51	$290.85 - $361.93
Q3 2014	6,075	$2,010	$329.72	$298.31 - $349.00
Q2 2014	2,726	$860	$300.97	$272.02 - $322.25