CIK 0001022079 · Large accelerated filer
QUEST DIAGNOSTICS INC
Sign in to watch- Ticker
- 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 |
|---|---|---|---|---|---|---|
| 2026-11-09 | Plewman Patrick SVP for Diagnostic Services | Sale 10b5-1 | −4,274 | $257.34 | $1.1M | 15,334 |
| 2026-11-09 | Plewman Patrick SVP for Diagnostic Services | Sale 10b5-1 | −6,793 | $257.34 | $1.7M | 15,334 |
| 2026-11-09 | Plewman Patrick SVP for Diagnostic Services | Sale 10b5-1 | −650 | $257.34 | $167K | 14,684 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −3,818 | $245.45 | $937K | 90,236 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −5,990 | $246.26 | $1.5M | 84,246 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −1,151 | $246.98 | $284K | 83,095 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −2,358 | $248.38 | $586K | 80,737 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −3,004 | $249.40 | $749K | 77,733 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −2,877 | $250.49 | $721K | 74,856 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Sale 10b5-1 | −2,907 | $251.24 | $730K | 71,949 |
| 2026-10-26 | PFEIFFER GARY M Director | Sale 10b5-1 | −1,203 | $243.00 | $292K | 29,802 |
| 2026-09-01 | Davis J. E. CEO and President | Sale 10b5-1 | −10,000 | $242.72 | $2.4M | 122,423 |
| 2026-08-28 | PREVOZNIK MICHAEL E SVP & General Counsel | Sale 10b5-1 | −16,010 | $242.88 | $3.9M | 44,224 |
| 2026-08-28 | PREVOZNIK MICHAEL E SVP & General Counsel | Sale 10b5-1 | −6,237 | $243.63 | $1.5M | 37,987 |
| 2026-08-28 | PREVOZNIK MICHAEL E SVP & General Counsel | Sale 10b5-1 | −430 | $244.51 | $105K | 37,557 |
| 2026-07-28 | DELANEY MARK E SVP & Chief Commercial Officer | Sale 10b5-1 | −1,600 | $235.18 | $376K | 10,335 |
| 2026-06-04 | KUPPUSAMY KARTHIK SVP, Clinical Solutions | Sale 10b5-1 | −8,147 | $200.00 | $1.6M | 13,510 |
| 2026-06-01 | Davis J. E. CEO and President | Sale 10b5-1 | −10,000 | $194.14 | $1.9M | 132,423 |
| 2026-03-05 | Doherty Catherine T. EVP, Regional Businesses | Sale 10b5-1 | −5,558 | $206.21 | $1.1M | 67,122 |
| 2026-03-05 | PREVOZNIK MICHAEL E SVP & General Counsel | Sale 10b5-1 | −3,878 | $206.21 | $800K | 37,557 |
Page 1 of 6 · 107 trades