DGX
QUEST DIAGNOSTICS INC · Healthcare · Market cap $25.9B
Insiders sold $9.9M net in the last 90 days ·4 sellers, 0 buyers· 4 of 4 sales under Rule 10b5-1 plans· latest Form 4 filed Sep 3, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$42.6M
reported sales (SEC code S)
Unique Insiders
8
in the rolling window
Latest filing
Sep 3, 2026
Davis J. E.
QUEST DIAGNOSTICS INC (DGX) has 59 SEC Form 4 filings (117 transaction rows) in the rolling window, disclosed by 8 distinct insiders. Most recent filing: Sep 3, 2026.
Inside the rolling window, 8 insiders at QUEST DIAGNOSTICS INC reported no open-market purchases and 25 open-market sales totaling $42.6M. The most active filer is SVP & General Counsel PREVOZNIK MICHAEL E with 7 filings. Insiders have net sold $11.9M over the trailing 6 months. The most recent open-market filing is a sale of 10,000 shares by CEO and President Davis J. E., dated Sep 1, 2026, worth $2.4M.
- Industry:Medical - Diagnostics & Research
- CEO:James E. Davis
- Employees:51,500
- HQ:Secaucus, NJ, US
- IPO:1996-12-17
| Source | |||||||
|---|---|---|---|---|---|---|---|
Davis J. E.First in 3 months | CEO and President | Sale | 10,000 | $2.4M | Sep 3 | -1.8% | SEC ↗ |
PREVOZNIK MICHAEL EFirst in 6 months | SVP & General Counsel | Sale | 22,677 | $5.5M | Aug 31 | -2.2% | SEC ↗ |
DELANEY MARK EFirst in 8 months | SVP & Chief Commercial Officer | Sale | 1,600 | $376K | Jul 29 | -0.1% | SEC ↗ |
KUPPUSAMY KARTHIKFirst in 3 months | SVP, Clinical Solutions | Sale | 8,147 | $1.6M | Jun 8 | +19.2% | SEC ↗ |
Davis J. E.First in 3 months | CEO and President | Sale | 10,000 | $1.9M | Jun 2 | +21.7% | SEC ↗ |
| SVP for Diagnostic Services | Sale | 2,855 | $589K | Mar 6 | +18.0% | SEC ↗ | |
| EVP, Regional Businesses | Sale | 5,558 | $1.1M | Mar 6 | +18.0% | SEC ↗ | |
| SVP & General Counsel | Sale | 3,878 | $800K | Mar 6 | +18.0% | SEC ↗ | |
KUPPUSAMY KARTHIKFirst filing | SVP, Clinical Solutions | Sale | 2,628 | $538K | Mar 6 | — | SEC ↗ |
Davis J. E.First in 3 months | CEO and President | Sale | 10,000 | $2.1M | Mar 4 | — | SEC ↗ |
| EVP, Regional Businesses | Sale | 632 | $131K | Mar 4 | — | SEC ↗ | |
| SVP & General Counsel | Sale | 526 | $109K | Mar 4 | — | SEC ↗ | |
| SVP for Diagnostic Services | Sale | 410 | $85K | Mar 4 | — | SEC ↗ | |
| EVP, Regional Businesses | Sale | 1,433 | $294K | Feb 20 | — | SEC ↗ | |
| SVP for Diagnostic Services | Sale | 958 | $196K | Feb 20 | — | SEC ↗ | |
PREVOZNIK MICHAEL EFirst in 5 months | SVP & General Counsel | Sale | 1,111 | $228K | Feb 20 | — | SEC ↗ |
Doherty Catherine T.First filing | EVP, Regional Businesses | Sale | 26,165 | $5.4M | Feb 17 | — | SEC ↗ |
Plewman PatrickFirst filing | SVP for Diagnostic Services | Sale | 5,662 | $1.2M | Feb 12 | — | SEC ↗ |
Davis J. E.First filing | CEO and President | Sale | 55,093 | $10.6M | Nov 28 | — | SEC ↗ |
Gregg Vicky BFirst filing | Director | Sale | 1,250 | $240K | Nov 28 | — | SEC ↗ |
DELANEY MARK EFirst filing | SVP & Chief Commercial Officer | Sale | 7,946 | $1.5M | Nov 20 | — | SEC ↗ |
PFEIFFER GARY MFirst filing | Director | Sale | 1,482 | $270K | Oct 24 | — | SEC ↗ |
| SVP & General Counsel | Sale | 227 | $43K | Sep 30 | — | SEC ↗ | |
PREVOZNIK MICHAEL EFirst filing | SVP & General Counsel | Sale | 28,288 | $5.3M | Sep 25 | — | SEC ↗ |
PREVOZNIK MICHAEL EFirst filing | SVP & General Counsel | Sale | 175 | $33K | Sep 25 | — | SEC ↗ |
Congress trading DGX 45 all-time
- RRep. Carol Devine MillerSale$15,001 - $50,0002025-03-10
- DRep. Julie JohnsonPurchase$1,001 - $15,0002025-10-30
- DRep. Julie JohnsonSale$1,001 - $15,0002025-10-30
- RSen. Alan ArmstrongPurchase$1,001 - $15,0002026-03-27
- RSen. Alan ArmstrongPurchase$1,001 - $15,0002026-03-27
- RRep. Julia LetlowOther$1,001 - $15,0002025-07-24
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does DGX have?
QUEST DIAGNOSTICS INC (DGX) has 59 SEC Form 4 filings (117 transaction rows) in the rolling 365-day window, disclosed by 8 distinct insiders. Most recent filing: Sep 3, 2026.
When was the most recent SEC Form 4 filing for DGX?
The most recent Form 4 filing for DGX on Tracefour is dated Sep 3, 2026.
Who is the most active insider at DGX?
The most active SEC Form 4 filer at DGX in the rolling window is SVP & General Counsel PREVOZNIK MICHAEL E, with 7 filings.
What is the net insider flow at DGX over the last 6 months?
Over the trailing 180 days, insiders at DGX have net sold $11.9M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at DGX in the current window?
Inside the rolling window, insiders at DGX bought $0 and sold $42.6M based on SEC Form 4 filings.
Can I get alerts for DGX insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at QUEST DIAGNOSTICS INC (DGX). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
QUEST DIAGNOSTICS INC is in the Healthcare sector.