Mark E. Delaney is CCO & VP at QUEST DIAGNOSTICS INC (DGX). They have made 2 open-market trades across 1 company since 2024, most recently 2026-07-28.
CIK 0001955265
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DGX | 10,335 | $2.4M |
Shares reported on the most recent Form 4, priced at the 2026-07-29 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DGX | SELL · 10b5-1 | 2026-07-28 | 2026-07-29 | $235.18 | $376K | +2.9% | +5.0% | — |
| DGX | SELL · 10b5-1 | 2025-11-18 | 2025-11-20 | $187.35 | $3.0M | -2.9% | -6.3% | +8.7% |
| DGX | SELL · 10b5-1 | 2025-05-12 | 2025-05-14 | $175.51 | $614K | +0.9% | +4.7% | +3.8% |
| DGX | SELL | 2025-02-05 | 2025-02-07 | $164.30 | $132K | +5.8% | +6.4% | +8.2% |
| DGX | SELL | 2024-07-24 | 2024-07-26 | $143.08 | $120K | +0.8% | +6.1% | +9.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.