Quest Diagnostics Director Files Form 144 to Sell $292K in Stock

Executive Summary

On October 26, 2026, Gary M. Pfeiffer, a Director at Quest Diagnostics Inc ($DGX), filed SEC Form 144 proposing the sale of 1,203 shares of common stock through Fidelity Brokerage Services LLC. The aggregate market value of the proposed disposition is $292,329.00, representing an average price of approximately $243.00 per share.

Transaction Details

• Security: Common Stock
• Shares Proposed for Sale: 1,203 shares
• Aggregate Market Value: $292,329.00
• Acquisition Origin: The shares were acquired on May 15, 2026, through restricted stock vesting as part of director compensation from the issuer.
• Trading Plan: The planned sale is governed by a Rule 10b5-1 trading plan adopted on May 29, 2026.

Market and Trading Significance

This transaction carries Low trading significance. The 1,203 shares represent a negligible fraction of the company's 110,019,073 shares outstanding (<0.01%). Furthermore, the transaction originates from equity compensation vesting and is executed pursuant to a pre-arranged Rule 10b5-1 plan established nearly five months prior, indicating standard, non-discretionary liquidity management rather than a directional signal on company performance.