BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Decatur Capital Management, Inc.'s Holding History (CIK: 0001505961)

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

Q1 2018

Shares 29,135 Value ($000) $7,978 Avg Close $310.41 Range $259.76 - $370.57

Q1 2016

Shares 48,450 Value ($000) $12,613 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 42,875 Value ($000) $13,135 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 43,100 Value ($000) $12,577 Avg Close $330.23 Range $265.00 - $412.24

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	29,135	$7,978	$310.41	$259.76 - $370.57
Q1 2016	48,450	$12,613	$264.15	$242.07 - $301.02
Q4 2015	42,875	$13,135	$287.35	$254.00 - $311.65
Q3 2015	43,100	$12,577	$330.23	$265.00 - $412.24