BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

CenterStar Asset Management, LLC's Holding History (CIK: 0001722053)

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

Q4 2021

Shares 2,954 Value ($000) $709 Avg Close $257.12 Range $221.72 - $290.76

Q1 2020

Shares 355 Value ($000) $112 Avg Close $303.47 Range $262.25 - $374.99

Q3 2018

Shares 301 Value ($000) $107 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 6,331 Value ($000) $1,828 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 100 Value ($000) $27 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 299 Value ($000) $96 Avg Close $320.80 Range $301.81 - $348.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	2,954	$709	$257.12	$221.72 - $290.76
Q1 2020	355	$112	$303.47	$262.25 - $374.99
Q3 2018	301	$107	$344.30	$288.13 - $388.67
Q2 2018	6,331	$1,828	$281.15	$249.17 - $310.91
Q1 2018	100	$27	$310.41	$259.76 - $370.57
Q4 2017	299	$96	$320.80	$301.81 - $348.84