CDW CORP

Ticker: CDW CUSIP: 12514G108 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2025

Shares 46,667 Value ($000) $6,356 Avg Close $147.03 Range $135.03 - $161.75

Q3 2025

Shares 153,456 Value ($000) $24,442 Avg Close $168.81 Range $155.96 - $182.41

Q2 2025

Shares 189,924 Value ($000) $33,919 Avg Close $168.13 Range $135.72 - $190.08

Q1 2025

Shares 162,565 Value ($000) $26,053 Avg Close $179.25 Range $156.93 - $219.61

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	46,667	$6,356	$147.03	$135.03 - $161.75
Q3 2025	153,456	$24,442	$168.81	$155.96 - $182.41
Q2 2025	189,924	$33,919	$168.13	$135.72 - $190.08
Q1 2025	162,565	$26,053	$179.25	$156.93 - $219.61