Sanderson Katherine Elizabeth 4

What Happened
Katherine Elizabeth Sanderson, Chief Human Resources Officer and Executive Vice President, Coworker Success at CDW Corporation (CDW), had 2,204.59 shares disposed on March 16, 2026 to cover tax obligations arising from a settled restricted stock unit (RSU) award. The withholding was executed at $116.16 per share, for a total value of approximately $256,085. This was a tax-withholding disposition (transaction code F), not an open-market sale.

Key Details

• Transaction date and price: March 16, 2026 — 2,204.59 shares withheld at $116.16 per share.
• Total value of shares withheld: ~$256,085.
• Shares owned after transaction: Not disclosed in the filing.
• Footnote: F1 — shares were withheld to cover taxes from settlement of a previously granted RSU under the CDW Corporation Long-Term Incentive Plan.
• Filing: Form 4 filed Mar 18, 2026 (appears timely based on the reported transaction date).

Context
Tax-withholdings on vested RSUs are common and reflect withholding of newly issued shares to satisfy tax liabilities; they are routine administrative transactions and do not necessarily signal insider sentiment. The filing shows a disposition for tax purposes (code F) rather than a discretionary sale (code S) or purchase (code P).