CDW CORP

Ticker: CDW CUSIP: 12514G108 Class: COM

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

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

Q4 2020

Shares 3,290 Value ($000) $428 Avg Close $123.09 Range $109.89 - $137.99

Q2 2020

Shares 7,458 Value ($000) $850 Avg Close $101.20 Range $80.00 - $120.94

Q1 2020

Shares 414 Value ($000) $40 Avg Close $114.00 Range $68.44 - $135.85

Q4 2019

Shares 43 Value ($000) $6 Avg Close $122.84 Range $109.01 - $134.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	3,290	$428	$123.09	$109.89 - $137.99
Q2 2020	7,458	$850	$101.20	$80.00 - $120.94
Q1 2020	414	$40	$114.00	$68.44 - $135.85
Q4 2019	43	$6	$122.84	$109.01 - $134.79