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Quest Diagnostics Inc

DGX
Exchange
NYSE
Industry
Services-Medical Laboratories
SEC CIK
0001022079

In the last 90 days, Quest Diagnostics Inc insiders filed 0 open-market purchases and 3 sales; 1,112 institutions reported holding it in 13F filings for Q2 2026, worth $22.2B in total; no superinvestor holds it.

Members of Congress who traded DGX

Since 2020, newest trade first. Options and trades reported under an earlier ticker are included.

Trades
27
Filings
23
Members
11
Buys / sells
12 / 15
Estimated volume
$356.5K
Sum of range midpoints
Members of Congress who traded DGX
MemberTradesBuys / sellsEst. volumeLast tradedLast filed
Alan ArmstrongRepublican · Senate · OK22 / 0$16.0KMar 30, 2026Jul 21, 2026
Julie JohnsonDemocrat · House · TX31 / 2$24.0KNov 3, 2025Aug 5, 2026
Julia LetlowRepublican · House · LA21 / 1$16.0KJul 24, 2025Jan 13, 2026
Carol D. MillerRepublican · House · WV42 / 2$81.0KMar 10, 2025Aug 13, 2026
Gilbert Ray Cisneros, Jr.Democrat · House · CA10 / 1$8.00KJan 24, 2025Feb 11, 2025
Earl BlumenauerDemocrat · House · OR42 / 2$32.0KApr 4, 2024May 4, 2024
Tommy TubervilleRepublican · Senate · AL21 / 1$40.5KJan 3, 2024Feb 14, 2024
Thomas R. CarperDemocrat · Senate · DE21 / 1$16.0KDec 11, 2023Jan 3, 2024
Kathy E. ManningDemocrat · House · NC21 / 1$16.0KAug 3, 2022Sep 14, 2022
Sara JacobsDemocrat · House · CA10 / 1$75.0KApr 9, 2021May 28, 2021
Dean PhillipsDemocrat · House · MN41 / 3$32.0KJun 1, 2020Jul 7, 2020

Trades

Every reported trade in Quest Diagnostics Inc, newest filings first.

Congress trades
MemberAssetTypeOwnerTradedFiledDelayAmountSource
Dean PhillipsDemocrat · House · MNDGXQuest Diagnostics IncorporatedBuySelfJan 17, 2020Feb 7, 202021 days$1K-$15KFiling
Dean PhillipsDemocrat · House · MNDGXQuest Diagnostics IncorporatedSell (partial)SelfFeb 10, 2020Mar 12, 202031 days$1K-$15KFiling
Earl BlumenauerDemocrat · House · ORDGXQuest Diagnostics IncorporatedBuySpouseMar 2, 2020Apr 16, 202045 days$1K-$15KFiling
Dean PhillipsDemocrat · House · MNDGXQuest Diagnostics IncorporatedSell (partial)SelfApr 2, 2020May 7, 202035 days$1K-$15KFiling
Dean PhillipsDemocrat · House · MNDGXQuest Diagnostics IncorporatedSell (partial)SelfJun 1, 2020Jul 7, 202036 days$1K-$15KFiling
Thomas R. CarperDemocrat · Senate · DEDGXQuest Diagnostics IncorporatedBuySpouseApr 2, 2020May 17, 2021Amended32 days$1K-$15KFiling
Sara JacobsDemocrat · House · CADGXQuest Diagnostics IncorporatedSellSelfApr 9, 2021May 28, 202149 daysLate$50K-$100KFiling
Tommy TubervilleRepublican · Senate · ALDGXQuest Diagnostics IncorporatedBuyJointMar 29, 2021Jul 23, 2021116 daysLate$1K-$15KFiling
Earl BlumenauerDemocrat · House · ORDGXQuest Diagnostics IncorporatedBuySelfFeb 24, 2022Apr 1, 202236 days$1K-$15KFiling
Earl BlumenauerDemocrat · House · ORDGXQuest Diagnostics IncorporatedSellSelfMar 14, 2022Apr 1, 202218 days$1K-$15KFiling
Kathy E. ManningDemocrat · House · NCDGXQuest Diagnostics IncorporatedBuyJointJul 20, 2022Aug 10, 202221 days$1K-$15KFiling
Carol D. MillerRepublican · House · WVDGXQuest Diagnostics IncorporatedBuySpouseJul 28, 2021Sep 2, 2022401 daysLate$15K-$50KFiling
Kathy E. ManningDemocrat · House · NCDGXQuest Diagnostics IncorporatedSellJointAug 3, 2022Sep 14, 202242 days$1K-$15KFiling
Carol D. MillerRepublican · House · WVDGXQuest Diagnostics IncorporatedBuySelfNov 14, 2022Dec 13, 202229 days$1K-$15KFiling
Thomas R. CarperDemocrat · Senate · DEDGXQuest Diagnostics IncSell (partial)SpouseDec 11, 2023Jan 3, 202423 days$1K-$15KFiling
Tommy TubervilleRepublican · Senate · ALDGXQuest Diagnostics Incorporated Common StockSell (partial)JointJan 3, 2024Feb 14, 202442 days$15K-$50KFiling
Earl BlumenauerDemocrat · House · ORDGXQuest Diagnostics Incorporated Common StockSellSpouseApr 4, 2024May 4, 202430 days$1K-$15KFiling
Gilbert Ray Cisneros, Jr.Democrat · House · CADGXQuest Diagnostics Incorporated Common StockSell (partial)SelfJan 24, 2025Feb 11, 202518 days$1K-$15KFiling
Carol D. MillerRepublican · House · WVDGXQuest Diagnostics Incorporated Common StockSellSelfMar 10, 2025Apr 11, 202532 days$1K-$15KFiling
Julie JohnsonDemocrat · House · TXDGXQuest Diagnostics Incorporated Common StockSellJointNov 3, 2025Dec 11, 202538 days$1K-$15KFiling
Julia LetlowRepublican · House · LADGXQuest Diagnostics Incorporated Common StockBuySelfApr 28, 2025Jan 13, 2026260 daysLate$1K-$15KFiling
Julia LetlowRepublican · House · LADGXQuest Diagnostics Incorporated Common StockSellSelfJul 24, 2025Jan 13, 2026173 daysLate$1K-$15KFiling
Alan ArmstrongRepublican · Senate · OKDGXQuest Diagnostics Incorporated Common StockBuySelfMar 27, 2026Jul 21, 2026116 daysLate$1K-$15KFiling
Alan ArmstrongRepublican · Senate · OKDGXQuest Diagnostics Incorporated Common StockBuySelfMar 30, 2026Jul 21, 2026113 daysLate$1K-$15KFiling
Julie JohnsonDemocrat · House · TXDGXQuest Diagnostics Incorporated Common StockSellJointOct 30, 2025Aug 5, 2026279 daysLate$1K-$15KFiling
Julie JohnsonDemocrat · House · TXDGXQuest Diagnostics Incorporated Common StockBuyJointOct 30, 2025Aug 5, 2026279 daysLate$1K-$15KFiling
Carol D. MillerRepublican · House · WVDGXQuest Diagnostics Incorporated Common StockSellSpouseMar 10, 2025Aug 13, 2026Amended521 daysLate$15K-$50KFiling

Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.