Form 4 Filing for Quest Diagnostics Inc.

This filing details a transaction by Samad Sam, Executive Vice President & CFO of Quest Diagnostics Inc. On April 20, 2026, Sam acquired 108 shares of the company's Common Stock at a price of $194.698 per share. This acquisition was made under a dividend reinvestment plan and is being reported early on Form 4. Following this transaction, Sam now owns 33,376 shares of Common Stock, held directly. The filing also notes an award of restricted share units, indicated by footnote F1.