Cdw 4: NELMS DAVID W bought 258 shares at $0.00 on 2026-10-01 (Oct 5, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-10-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CDW Corp (CDW) CIK: 0001402057 --- Reporting Owner --- Name: NELMS DAVID W CIK: 0001183830 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock, par value $0.01 Date: 2026-10-01 | Code: A (Grant or award) Shares: +258 | Price: $0.00 Shares Owned After: 51,820.61 | Ownership: D (Direct) Footnotes: [F1] This is a grant of fully vested restricted stock units under the CDW Corporation 2021 Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement. --- Footnotes (Complete Index) --- F1: This is a grant of fully vested restricted stock units under the CDW Corporation 2021 Long-Term Incentive Plan. This grant is in lieu of cash for the annual director retainer, which will be granted quarterly in arrears. Settlement into shares of CDW Corporation common stock has been deferred pursuant to each applicable award agreement. --- Signature --- /s/ /s/ Stephanie Tso, Attorney-in-Fact (2026-10-05)