Capital World Investors Acquires 6.2% Stake in Core & Main, Inc. (CNM)

On May 14, 2026, Capital World Investors (CWI) filed a Schedule 13G with the SEC, reporting a new 6.2% stake in Core & Main, Inc. (CNM). As of the event date on March 31, 2026, CWI beneficially owns 11,571,392 shares of the company's common stock. This position represents a significant increase from a previously reported 0.0% holding, signaling a substantial new investment by the firm. Capital World Investors, a division of Capital Research and Management Company (CRMC), reported sole voting and dispositive power over all 11,571,392 shares. The filing indicates that the securities were acquired in the ordinary course of business and are not held for the purpose of changing or influencing the control of the issuer. The total value of the holdings is estimated at approximately $555.77 million based on the provided data. This filing highlights CWI's entry as a major institutional shareholder in the water, wastewater, and fire protection product distributor.