BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Sierra Capital LLC's Holding History (CIK: 0001787274)

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

Q2 2022

Shares 151 Value ($000) $31 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 157 Value ($000) $33 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 165 Value ($000) $40 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 151 Value ($000) $43 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 151 Value ($000) $52 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 151 Value ($000) $42 Avg Close $269.69 Range $238.40 - $296.38

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2022	151	$31	$204.43	$187.16 - $225.50
Q1 2022	157	$33	$217.46	$192.67 - $249.00
Q4 2021	165	$40	$257.12	$221.72 - $290.76
Q3 2021	151	$43	$327.75	$282.64 - $372.12
Q2 2021	151	$52	$302.94	$257.03 - $468.55
Q1 2021	151	$42	$269.69	$238.40 - $296.38