Vanguard Capital Management LLC Acquires 7.53% Passive Stake in Quest Diagnostics Inc

On April 30, 2026, Vanguard Capital Management LLC filed a Schedule 13G with the SEC, reporting a new 7.53% stake in Quest Diagnostics Inc (DGX). As of the event date on March 31, 2026, the investment adviser beneficially owns 8,274,567 shares of Common Stock. This position represents a significant increase from a previous holding of zero shares, marking a new substantial passive investment in the company. The filing indicates that Vanguard Capital Management exercises sole dispositive power over all 8,274,567 shares, while holding sole voting power over 1,128,895 shares. The reported ownership includes securities held by various affiliates, including Vanguard Asset Management Limited and Vanguard Global Advisers, LLC. In accordance with Rule 13d-1(b), Vanguard certified that these shares were acquired in the ordinary course of business and not for the purpose of influencing or changing the control of the issuer. No other single person's interest in these securities exceeds 5% of the total shares outstanding.