Insider Transactions Reported by 23 Insiders of QUEST DIAGNOSTICS INC

Symbol
DGX on NYSE
Location
Secaucus, NJ

Insiders trading volume in the past year

QUEST DIAGNOSTICS INC executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
STEPHEN RUSCKOWSKI Director $47.9M 06 Mar 2023
E. Davis CEO and President, Director $23.2M -$17.2M -42.5% 25 Nov 2025
Catherine T. Doherty EVP, Regional Businesses $13.8M -$1.45M -9.51% 05 Mar 2025
MARK GUINAN Executive Vice President & CFO $13.1M 07 Mar 2022
MICHAEL E. PREVOZNIK SVP & General Counsel $8.21M -$6.46M -44% 26 Sep 2025
TIMOTHY M. RING Director $7.95M 01 Oct 2025
MANNER CARRIE EGLINTON SVP, Advanced Diagnostics $7.59M 07 Mar 2022
SAM SAMAD Executive Vice President & CFO $6.37M 21 Oct 2025
MICHAEL J. DEPPE SVP, Corp. Controller & CAO $6.24M 03 Mar 2025
GARY M. PFEIFFER Director $5.37M -$270K -4.79% 22 Oct 2025
TIMOTHY L. MAIN Director $4.65M 15 May 2025
GAIL R. WILENSKY Director $4.16M 17 May 2023
Vicky B. Gregg Director $3.27M -$445K -12% 25 Nov 2025
Patrick Plewman SVP for Diagnostic Services $2.9M -$2.57M -47% 21 Oct 2025
MARK E. DELANEY SVP & Chief Commercial Officer $2.48M -$1.86M -42.8% 18 Nov 2025
KARTHIK KUPPUSAMY SVP, Clinical Solutions $1.96M -$2.19M -52.8% 21 Oct 2025
DENISE M. MORRISON Director $1.9M 15 May 2025
Wright Lassiter III Director $1.57M 01 Oct 2025
MARK A. GARDNER SVP of Molecular Gen & Oncol $1.54M 24 Sep 2024
Tracey Doi Director $1.15M 15 May 2025
Helen Torley Director $769K 25 May 2021
Luis Diaz Director $716K 15 May 2025
ROBERT B. CARTER Director $510K 21 Oct 2025

Recent Insider Transactions by Companies or Individuals for QUEST DIAGNOSTICS INC

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.