BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

PAULSON & CO. INC.'s Holding History (CIK: 0001035674)

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

Q1 2017

Shares 17,300 Value ($000) $4,730 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 52,200 Value ($000) $14,803 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 308,000 Value ($000) $96,413 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 123,100 Value ($000) $29,768 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 118,400 Value ($000) $30,822 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 36,200 Value ($000) $11,090 Avg Close $287.35 Range $254.00 - $311.65

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	17,300	$4,730	$282.75	$260.50 - $301.42
Q4 2016	52,200	$14,803	$296.43	$268.00 - $329.83
Q3 2016	308,000	$96,413	$296.18	$240.07 - $333.65
Q2 2016	123,100	$29,768	$263.54	$223.02 - $292.69
Q1 2016	118,400	$30,822	$264.15	$242.07 - $301.02
Q4 2015	36,200	$11,090	$287.35	$254.00 - $311.65