BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

ANCHOR CAPITAL ADVISORS LLC's Holding History (CIK: 0000813933)

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

Q1 2019

Shares 46,459 Value ($000) $10,982 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 44,920 Value ($000) $13,517 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 46,021 Value ($000) $16,260 Avg Close $344.30 Range $288.13 - $388.67

Q1 2018

Shares 6,000 Value ($000) $1,643 Avg Close $310.41 Range $259.76 - $370.57

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	46,459	$10,982	$314.89	$216.12 - $344.00
Q4 2018	44,920	$13,517	$319.14	$278.46 - $358.41
Q3 2018	46,021	$16,260	$344.30	$288.13 - $388.67
Q1 2018	6,000	$1,643	$310.41	$259.76 - $370.57