Trade Summary

1 week ago, DELANEY MARK E, serving as SVP & Chief Commercial Officer at QUEST DIAGNOSTICS INC (DGX), sold 1,600 shares at $235.18 per share, for a total transaction value of $376,288.00. Following this transaction, DELANEY MARK E now holds 10,335 shares of DGX.

This sale represents a 13.41% decrease in DELANEY MARK E's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Tuesday, July 28, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, July 29, 2026 at 5:04 PM ET, 1 day after the trade was made.

QUEST DIAGNOSTICS INC operates in the HEALTHCARE sector, specifically within the DIAGNOSTICS & RESEARCH industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.