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 |
|---|---|---|---|---|---|---|
| 2026-11-09 | Plewman Patrick SVP for Diagnostic Services | Option exercise 10b5-1 | +4,274 | $127.73 | $546K | 19,608 |
| 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 | Option exercise 10b5-1 | +6,793 | $127.81 | $868K | 22,127 |
| 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 |
| 2026-11-09 | Plewman Patrick SVP for Diagnostic Services | Option exercise · Non-Qualifed Stock Option (right to buy) 10b5-1 | −4,274 | $127.73 | $546K | 0 |
| 2026-11-09 | Plewman Patrick SVP for Diagnostic Services | Option exercise · Non-Qualifed Stock Option (right to buy) 10b5-1 | −6,793 | $127.81 | $868K | 3,397 |
| 2026-11-03 | Ramachandran Subu SVP, Regional Businesses | Grant or award | +352 | 2,832 | ||
| 2026-11-03 | Ramachandran Subu SVP, Regional Businesses | Grant or award · Non-Qualifed Stock Option (right to buy) | +1,386 | 1,386 | ||
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Grant or award 10b5-1 | +4,827 | 71,949 | ||
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Option exercise 10b5-1 | +22,105 | $121.81 | $2.7M | 94,054 |
| 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 |
| 2026-11-03 | Doherty Catherine T. Executive Vice President | Option exercise · Non-Qualifed Stock Option (right to buy) 10b5-1 | −22,105 | $121.81 | $2.7M | 0 |
| 2026-11-03 | DELANEY MARK E SVP & Chief Commercial Officer | Grant or award | +2,615 | 12,975 |
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