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 |
|---|---|---|---|---|---|---|
| 2026-03-02 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Shares withheld for taxes | −205 | $204.86 | $42K | 9,869 |
| 2026-03-02 | DELANEY MARK E SVP & Chief Commercial Officer | Shares withheld for taxes | −188 | $204.86 | $39K | 8,508 |
| 2026-03-02 | Deppe Michael J SVP, Corp. Controller & CAO | Shares withheld for taxes | −88 | $204.86 | $18K | 34,473 |
| 2026-02-19 | Doherty Catherine T. EVP, Regional Businesses | Sale 10b5-1 | −1,433 | $204.83 | $294K | 68,402 |
| 2026-02-19 | Plewman Patrick SVP for Diagnostic Services | Sale 10b5-1 | −958 | $204.83 | $196K | 15,838 |
| 2026-02-19 | PREVOZNIK MICHAEL E SVP & General Counsel | Sale 10b5-1 | −1,111 | $204.83 | $228K | 38,371 |
| 2026-02-18 | DELANEY MARK E SVP & Chief Commercial Officer | Grant or award | +1,586 | 9,116 | ||
| 2026-02-18 | DELANEY MARK E SVP & Chief Commercial Officer | Shares withheld for taxes | −205 | $210.01 | $43K | 8,911 |
| 2026-02-18 | DELANEY MARK E SVP & Chief Commercial Officer | Shares withheld for taxes | −230 | $206.99 | $48K | 8,681 |
| 2026-02-18 | DELANEY MARK E SVP & Chief Commercial Officer | Grant or award · Non-Qualifed Stock Option (right to buy) | +7,332 | 7,332 | ||
| 2026-02-18 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Shares withheld for taxes | −252 | $210.01 | $53K | 8,173 |
| 2026-02-18 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Shares withheld for taxes | −259 | $206.99 | $54K | 7,914 |
| 2026-02-18 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Grant or award | +2,135 | 10,049 | ||
| 2026-02-18 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Grant or award · Non-Qualifed Stock Option (right to buy) | +9,853 | 9,853 | ||
| 2026-02-18 | Deppe Michael J SVP, Corp. Controller & CAO | Grant or award | +366 | 34,742 | ||
| 2026-02-18 | Deppe Michael J SVP, Corp. Controller & CAO | Shares withheld for taxes | −83 | $210.01 | $17K | 34,659 |
| 2026-02-18 | Deppe Michael J SVP, Corp. Controller & CAO | Shares withheld for taxes | −99 | $206.99 | $20K | 34,560 |
| 2026-02-18 | Deppe Michael J SVP, Corp. Controller & CAO | Grant or award · Non-Qualifed Stock Option (right to buy) | +1,688 | 1,688 | ||
| 2026-02-18 | SAMAD SAM Executive Vice President & CFO | Grant or award | +3,965 | 29,706 | ||
| 2026-02-18 | SAMAD SAM Executive Vice President & CFO | Shares withheld for taxes | −855 | $210.01 | $180K | 28,851 |
Page 6 of 21 · 409 trades