Form 4 Filing for David W. Nelms

David W. Nelms, a director at CDW Corp, reported the purchase of 18,000 shares of common stock on May 27, 2026. The shares were acquired on the open market at a price of $111.43 per share. Following this transaction, Mr. Nelms directly owns 51,025.12 shares of CDW Corp common stock. The filing was signed by Stephanie Tso, acting as Attorney-in-Fact, on May 29, 2026. This transaction is classified as a purchase under transaction code "P".