BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Baker Chad R's Holding History (CIK: 0001666470)

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

Q3 2019

Shares 11,995 Value ($000) $2,793 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 11,995 Value ($000) $2,806 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 11,995 Value ($000) $2,835 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 3,550 Value ($000) $1,068 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 3,550 Value ($000) $1,254 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 3,550 Value ($000) $1,030 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 3,550 Value ($000) $972 Avg Close $310.41 Range $259.76 - $370.57

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	11,995	$2,793	$232.85	$215.78 - $246.99
Q2 2019	11,995	$2,806	$230.90	$219.20 - $245.35
Q1 2019	11,995	$2,835	$314.89	$216.12 - $344.00
Q4 2018	3,550	$1,068	$319.14	$278.46 - $358.41
Q3 2018	3,550	$1,254	$344.30	$288.13 - $388.67
Q2 2018	3,550	$1,030	$281.15	$249.17 - $310.91
Q1 2018	3,550	$972	$310.41	$259.76 - $370.57