BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

ICON ADVISERS INC/CO's Holding History (CIK: 0001058470)

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

Q3 2017

Shares 5,700 Value ($000) $1,785 Avg Close $296.11 Range $269.50 - $330.00

Q4 2015

Shares 42,800 Value ($000) $13,112 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 58,760 Value ($000) $17,147 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 66,570 Value ($000) $26,890 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 66,820 Value ($000) $28,214 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 76,000 Value ($000) $25,798 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 61,260 Value ($000) $20,265 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 35,460 Value ($000) $11,181 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 12,360 Value ($000) $3,781 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 39,000 Value ($000) $10,903 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 25,100 Value ($000) $6,043 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 25,100 Value ($000) $5,402 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	5,700	$1,785	$296.11	$269.50 - $330.00
Q4 2015	42,800	$13,112	$287.35	$254.00 - $311.65
Q3 2015	58,760	$17,147	$330.23	$265.00 - $412.24
Q2 2015	66,570	$26,890	$401.33	$368.88 - $432.88
Q1 2015	66,820	$28,214	$394.14	$334.40 - $480.18
Q4 2014	76,000	$25,798	$323.51	$290.85 - $361.93
Q3 2014	61,260	$20,265	$329.72	$298.31 - $349.00
Q2 2014	35,460	$11,181	$300.97	$272.02 - $322.25
Q1 2014	12,360	$3,781	$317.43	$270.62 - $358.89
Q4 2013	39,000	$10,903	$258.65	$221.07 - $298.82
Q3 2013	25,100	$6,043	$223.81	$203.55 - $248.95
Q2 2013	25,100	$5,402	$213.68	$191.80 - $242.64