CDW CORP

Ticker: CDW CUSIP: 12514G108 Class: COM

Port Capital LLC's Holding History (CIK: 0001729212)

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

Q3 2021

Shares 27,089 Value ($000) $4,931 Avg Close $178.95 Range $162.18 - $193.32

Q2 2021

Shares 27,724 Value ($000) $4,842 Avg Close $162.84 Range $153.52 - $174.30

Q1 2021

Shares 27,695 Value ($000) $4,590 Avg Close $140.79 Range $118.17 - $159.55

Q4 2020

Shares 27,245 Value ($000) $3,591 Avg Close $123.09 Range $109.89 - $137.99

Q3 2020

Shares 23,495 Value ($000) $2,808 Avg Close $107.20 Range $99.42 - $114.46

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	27,089	$4,931	$178.95	$162.18 - $193.32
Q2 2021	27,724	$4,842	$162.84	$153.52 - $174.30
Q1 2021	27,695	$4,590	$140.79	$118.17 - $159.55
Q4 2020	27,245	$3,591	$123.09	$109.89 - $137.99
Q3 2020	23,495	$2,808	$107.20	$99.42 - $114.46