CIK 0001022079 · Large accelerated filer
QUEST DIAGNOSTICS INC
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- DGX
- Exchange
- NYSE
- Industry
- Services-Medical Laboratories
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 161387862
- Phone
- 9735202700
- Business address
- 500 PLAZA DRIVE, SECAUCUS, NJ, 07094
- Former names
- CORNING CLINICAL LABORATORIES INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $16,730,307
- in 5 filings, $16.7M under 10b5-1 plans
Net −$16,730,307. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
- PREVOZNIK MICHAEL E −$5.5M SVP & General Counsel sold 38% of stake
- Doherty Catherine T. −$5.5M Executive Vice President sold 24% of stake
- Plewman Patrick −$3.0M SVP for Diagnostic Services sold 44% of stake
- Davis J. E. −$2.4M CEO and President sold 8% of stake
- PFEIFFER GARY M −$292K Director sold 4% of stake
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-07-22 | Gregg Vicky B Director | Grant or award | +72 | $206.81 | $15K | 18,386 |
| 2026-07-22 | Plewman Patrick SVP for Diagnostic Services | Other acquisition | +46 | $206.81 | $10K | 15,293 |
| 2026-07-22 | MAIN TIMOTHY L Director | Other acquisition | +21 | $206.81 | $4K | 22,460 |
| 2026-07-22 | SAMAD SAM Executive Vice President & CFO | Grant or award | +102 | $206.81 | $21K | 33,478 |
| 2026-07-22 | Lassiter Wright III Director | Other acquisition | +6 | $206.81 | $1K | 10,323 |
| 2026-07-22 | DELANEY MARK E SVP & Chief Commercial Officer | Other acquisition | +34 | $206.81 | $7K | 11,935 |
| 2026-07-01 | WENTWORTH TIMOTHY C Director | Grant or award · Phantom Stock Units | +144 | 342 | ||
| 2026-06-04 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Option exercise 10b5-1 | +3,320 | $127.73 | $424K | 16,830 |
| 2026-06-04 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Option exercise 10b5-1 | +4,827 | $121.81 | $588K | 21,657 |
| 2026-06-04 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Sale 10b5-1 | −8,147 | $200.00 | $1.6M | 13,510 |
| 2026-06-04 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Option exercise · Non-Qualifed Stock Option (right to buy) 10b5-1 | −3,320 | $127.73 | $424K | 0 |
| 2026-06-04 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Option exercise · Non-Qualifed Stock Option (right to buy) 10b5-1 | −4,827 | $121.81 | $588K | 0 |
| 2026-06-01 | Davis J. E. CEO and President | Sale 10b5-1 | −10,000 | $194.14 | $1.9M | 132,423 |
| 2026-05-20 | Lassiter Wright III Director | Grant or award | +1,142 | 10,317 | ||
| 2026-05-20 | Diaz Luis Director | Grant or award | +1,142 | 5,196 | ||
| 2026-05-20 | Doi Tracey Director | Grant or award | +1,142 | 7,748 | ||
| 2026-05-20 | Gregg Vicky B Director | Grant or award | +1,142 | 18,314 | ||
| 2026-05-20 | WENTWORTH TIMOTHY C Director | Grant or award | +1,142 | 1,358 | ||
| 2026-05-20 | MORRISON DENISE M Director | Grant or award | +1,142 | 11,929 | ||
| 2026-05-20 | RING TIMOTHY M Director | Grant or award | +1,142 | 31,140 |
Page 3 of 21 · 409 trades