BlackRock Portfolio Management LLC filed a Schedule 13G with the SEC on October 27, 2026, disclosing beneficial ownership of 7,321,055 shares of CDW Corp common stock as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: BlackRock Portfolio Management LLC reported beneficial ownership of 7,321,055 shares of CDW Corp common stock.
  • Percent of class: The reported position represents 5.9% of CDW Corp's outstanding common shares.
  • Sole voting power: The filing attributed sole voting power over 7,167,783 shares to the reporting person.
  • Sole dispositive power: Sole power to dispose of all 7,321,055 shares was reported, with no shared dispositive power.
  • Triggering date: The date of the event requiring the filing was September 30, 2026.
  • Reporting person type: BlackRock Portfolio Management LLC is classified as a parent holding company (type "HC") organized in Delaware.

BlackRock Portfolio Management's Disclosed Ownership in CDW Corp

According to the Schedule 13G filed on October 27, 2026, BlackRock Portfolio Management LLC, located at 50 Hudson Yards, New York, NY 10001, reported beneficial ownership of 7,321,055 shares of CDW Corp (CUSIP 12514G108) common stock. CDW Corp's principal executive offices are listed in the filing as 200 N Milwaukee Avenue, Vernon Hills, Illinois, 60061. The filing was signed by Spencer Fleming, Managing Director, on behalf of BlackRock Portfolio Management LLC.

The filing states that the 7,321,055 aggregate shares represent 5.9% of the class. Of that total, the reporting person disclosed sole voting power over 7,167,783 shares and sole dispositive power over the full 7,321,055 shares. Shared voting power and shared dispositive power were each reported as zero. The filing is made consistent with SEC Release No. 34-39538 (January 12, 1998) and, according to the disclosure, "reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the 'Reporting Business Units') of BlackRock, Inc. and its subsidiaries and affiliates."

Regarding third-party interests, the filing states: "Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of CDW. No one person's interest in the common stock of CDW is more than five percent of the total outstanding common shares." The filing also certifies that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer."

What Was Disclosed

BlackRock Portfolio Management LLC disclosed beneficial ownership of 7,321,055 CDW Corp common shares, equal to 5.9% of the class, as of September 30, 2026. The filing identified sole voting power over 7,167,783 shares and sole dispositive power over the full position.