19 insiders reported 208 Form 4 transactions for QUEST DIAGNOSTICS INC (DGX) over the past 18 months (most recent 2026-07-29). Recent activity: DELANEY MARK E (SVP & Chief Commercial Officer) Sell 1,600 shares, MAIN TIMOTHY L (Director) Buy 21 shares, CARTER ROBERT B (Director) Buy 11 shares, Plewman Patrick (SVP for Diagnostic Services) Buy 46 shares, Gregg Vicky B (Director) Buy 72 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-29 | DELANEY MARK E | SVP & Chief Commercial Officer | Sell | 1,600 | $376,288 |
| 2026-07-27 | MAIN TIMOTHY L | Director | Buy | 21 | $4,343 |
| 2026-07-27 | CARTER ROBERT B | Director | Buy | 11 | $2,275 |
| 2026-07-27 | Plewman Patrick | SVP for Diagnostic Services | Buy | 46 | $9,513 |
| 2026-07-27 | Gregg Vicky B | Director | Buy | 72 | $14,890 |
| 2026-07-27 | SAMAD SAM | Executive Vice President & CFO | Buy | 102 | $21,094 |
| 2026-07-27 | Lassiter Wright III | Director | Buy | 6 | $1,241 |
| 2026-07-27 | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Buy | 37 | $7,652 |
| 2026-07-27 | DELANEY MARK E | SVP & Chief Commercial Officer | Buy | 34 | $7,031 |
| 2026-06-08 | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Buy | 3,320 | $424,047 |
| 2026-06-08 | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Buy | 4,827 | $587,953 |
| 2026-06-08 | KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Sell | 8,147 | $1.6M |
| 2026-06-02 | Davis J. E. | CEO and President | Sell | 10,000 | $1.9M |
| 2026-05-21 | PFEIFFER GARY M | Director | Buy | 1,142 | $0 |
| 2026-05-21 | MAIN TIMOTHY L | Director | Buy | 1,142 | $0 |
| 2026-05-21 | CARTER ROBERT B | Director | Buy | 1,142 | $0 |
| 2026-05-21 | RING TIMOTHY M | Director | Buy | 1,142 | $0 |
| 2026-05-21 | MORRISON DENISE M | Director | Buy | 1,142 | $0 |
| 2026-05-21 | WENTWORTH TIMOTHY C | Director | Buy | 1,142 | $0 |
| 2026-05-21 | Gregg Vicky B | Director | Buy | 1,142 | $0 |
| 2026-05-21 | Doi Tracey | Director | Buy | 1,142 | $0 |
| 2026-05-21 | Lassiter Wright III | Director | Buy | 1,142 | $0 |
| 2026-05-21 | Diaz Luis | Director | Buy | 1,142 | $0 |
| 2026-04-24 | Plewman Patrick | SVP for Diagnostic Services | Buy | 49 | $9,540 |
| 2026-04-24 | CARTER ROBERT B | Director | Buy | 7 | $1,363 |
Source: SEC Form 4 filings · as of 2026-07-29