DGX Insider Trading

Insider Ownership Percentage: 0.88%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $29,443,243.88

Quest Diagnostics Insider Trading History Chart

This chart shows the insider buying and selling history at Quest Diagnostics by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Quest Diagnostics Share Price & Price History

Current Price: $254.74
Price Change: ▼ Price Decrease of -0.945 (-0.37%)
As of 11/5/2026 11:29 AM ET

This chart shows the closing price history over time for DGX up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Quest Diagnostics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
10/26/2026Gary M PfeifferDirectorSell1,203$243.00$292,329.0029,802View SEC Filing Icon  
9/1/2026J. E DavisCEOSell10,000$242.72$2,427,200.00122,423View SEC Filing Icon  
8/28/2026Michael E. PrevoznikSVPSell22,677$243.11$5,513,005.4737,557View SEC Filing Icon  
7/28/2026Mark E. DelaneySVPSell1,600$235.18$376,288.0010,335View SEC Filing Icon  
6/4/2026Karthik KuppusamySVPSell8,147$200.00$1,629,400.0013,510View SEC Filing Icon  
6/1/2026J. E DavisCEOSell10,000$194.14$1,941,400.00132,423View SEC Filing Icon  
3/5/2026Catherine T. DohertyEVPSell5,558$206.21$1,146,115.1867,122View SEC Filing Icon  
3/5/2026Michael E. PrevoznikSVPSell3,878$206.21$799,682.3837,557View SEC Filing Icon  
3/5/2026Patrick PlewmanSVPSell2,855$206.21$588,729.5515,198View SEC Filing Icon  
3/4/2026Karthik KuppusamySVPSell2,628$204.86$538,372.0813,441View SEC Filing Icon  
2/19/2026Catherine T. DohertyEVPSell1,433$204.83$293,521.3968,402View SEC Filing Icon  
2/19/2026Michael E. PrevoznikSVPSell1,111$204.83$227,566.1338,371View SEC Filing Icon  
2/19/2026Patrick PlewmanSVPSell958$204.83$196,227.1415,838View SEC Filing Icon  
2/10/2026Patrick PlewmanSVPSell5,662$204.00$1,155,048.0015,381View SEC Filing Icon  
11/25/2025J. E DavisCEOSell55,093$192.22$10,589,976.46120,480View SEC Filing Icon  
11/25/2025Vicky B. GreggDirectorSell1,250$191.76$239,700.0017,037View SEC Filing Icon  
11/18/2025Mark E. DelaneySVPSell7,946$187.35$1,488,683.107,530View SEC Filing Icon  
10/22/2025Gary M PfeifferDirectorSell1,482$182.40$270,316.8029,431View SEC Filing Icon  
9/26/2025Michael E. PrevoznikSVPSell227$188.13$42,705.5138,117View SEC Filing Icon  
9/24/2025Michael E. PrevoznikSVPSell175$187.02$32,728.5038,117View SEC Filing Icon  
9/23/2025Michael E. PrevoznikSVPSell28,288$187.12$5,293,250.5638,117View SEC Filing Icon  
8/21/2025Patrick PlewmanSVPSell1,975$185.00$365,375.0015,269View SEC Filing Icon  
8/19/2025Patrick PlewmanSVPSell4,532$183.00$829,356.0017,244View SEC Filing Icon  
8/15/2025Patrick PlewmanSVPSell1,975$180.00$355,500.0017,244View SEC Filing Icon  
8/6/2025Patrick PlewmanSVPSell5,535$175.00$968,625.0019,219View SEC Filing Icon  
7/31/2025Karthik KuppusamySVPSell2,210$170.00$375,700.008,450View SEC Filing Icon  
7/30/2025Karthik KuppusamySVPSell8,269$167.40$1,384,230.6010,660View SEC Filing Icon  
5/12/2025Mark E. DelaneySVPSell874$175.72$153,579.288,372View SEC Filing Icon  
4/2/2025J. E DavisCEOSell39,191$168.46$6,602,115.86127,623View SEC Filing Icon  
4/2/2025Karthik KuppusamySVPSell2,555$170.00$434,350.0010,575View SEC Filing Icon  
3/17/2025Michael E. PrevoznikSVPSell4,643$170.00$789,310.0038,117View SEC Filing Icon  
3/5/2025Catherine T. DohertyEVPSell5,370$174.13$935,078.1068,068View SEC Filing Icon  
2/27/2025Catherine T. DohertyEVPSell824$172.61$142,230.6469,178View SEC Filing Icon  
2/27/2025Michael E. PrevoznikSVPSell528$172.61$91,138.0839,031View SEC Filing Icon  
2/20/2025Michael E. PrevoznikSVPSell604$170.99$103,277.9639,845View SEC Filing Icon  
2/19/2025Catherine T. DohertyEVPSell535$169.71$90,794.8571,356View SEC Filing Icon  
2/5/2025Mark E. DelaneySVPSell403$164.30$66,212.904,624View SEC Filing Icon  
2/5/2025Vicky B. GreggDirectorSell1,250$164.57$205,712.5016,867View SEC Filing Icon  
11/6/2024Michael J. DeppeCAOSell18,755$154.05$2,889,207.7534,941View SEC Filing Icon  
10/28/2024Karthik KuppusamySVPSell1,775$156.92$278,533.009,734View SEC Filing Icon  
8/28/2024Karthik KuppusamySVPSell1,990$153.26$304,987.4011,459View SEC Filing Icon  
7/24/2024Mark E. DelaneySVPSell420$143.08$60,093.605,019View SEC Filing Icon  
4/29/2024Karthik KuppusamySVPSell1,760$140.00$246,400.0013,435View SEC Filing Icon  
2/29/2024Michael E. PrevoznikSVPSell5,611$125.88$706,312.6838,478View SEC Filing Icon  
2/28/2024Catherine T. DohertyEVPSell5,557$126.57$703,349.4969,599View SEC Filing Icon  
2/23/2024Vicky B. GreggDirectorSell2,500$126.64$316,600.0016,329View SEC Filing Icon  
2/22/2024Catherine T. DohertyEVPSell821$126.14$103,560.9470,800View SEC Filing Icon  
2/22/2024Michael E. PrevoznikSVPSell661$126.14$83,378.5440,206View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Quest Diagnostics (NYSE:DGX)

88.06% of Quest Diagnostics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at DGX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Quest Diagnostics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/5/2026Lido Advisors LLC3,054$0.71M0.0%N/A0.003%Search for SEC Filing on Google Icon
11/5/2026Keybank National Association OH6,087$1.42M0.0%+4.5%0.006%Search for SEC Filing on Google Icon
11/5/2026Narwhal Capital Management20,005$4.66M0.3%+49.9%0.018%Search for SEC Filing on Google Icon
11/5/2026Csenge Advisory Group873$0.20M0.0%N/A0.001%Search for SEC Filing on Google Icon
11/4/2026New York Life Investment Management LLC16,465$3.84M0.0%-0.4%0.015%Search for SEC Filing on Google Icon
11/4/2026Gen Wealth Partners Inc498$0.12M0.0%-24.5%0.000%Search for SEC Filing on Google Icon
11/4/2026AEGON ASSET MANAGEMENT UK Plc89,239$20.80M0.2%-17.3%0.081%Search for SEC Filing on Google Icon
11/4/2026M&G PLC770,102$179.43M0.9%-3.2%0.700%Search for SEC Filing on Google Icon
11/4/2026AlphaCore Capital LLC10,967$2.56M0.0%+17.0%0.010%Search for SEC Filing on Google Icon
11/4/2026Retirement Systems of Alabama23,146$5.40M0.0%-0.5%0.021%Search for SEC Filing on Google Icon
11/4/2026Fulcrum Asset Management LLP1,668$0.39M0.0%N/A0.002%Search for SEC Filing on Google Icon
11/4/2026Allspring Global Investments Holdings LLC18,248$4.22M0.0%+5.8%0.017%Search for SEC Filing on Google Icon
11/4/2026Brighton Jones LLC4,353$1.02M0.0%+101.5%0.004%Search for SEC Filing on Google Icon
11/4/2026Candriam S.C.A.146,410$34.25M0.2%+21.8%0.133%Search for SEC Filing on Google Icon
11/3/2026Ethic Inc.30,591$7.13M0.1%-2.1%0.028%Search for SEC Filing on Google Icon
11/3/2026Pictet Asset Management Holding SA68,137$15.88M0.0%-1.6%0.062%Search for SEC Filing on Google Icon
11/3/2026Parallel Advisors LLC4,140$0.97M0.0%+3.3%0.004%Search for SEC Filing on Google Icon
11/3/2026Alps Advisors Inc.1,188$0.28M0.0%-68.7%0.001%Search for SEC Filing on Google Icon
11/3/2026Ashton Thomas Private Wealth LLC9,565$2.23M0.0%+2.3%0.009%Search for SEC Filing on Google Icon
11/3/2026Canvas Wealth Advisors LLC1,035$0.26M0.0%-13.1%0.001%Search for SEC Filing on Google Icon
11/3/2026General American Investors Co. Inc.98,869$23.04M1.3%+249.6%0.090%Search for SEC Filing on Google Icon
11/3/2026Calamos Wealth Management LLC3,167$0.74M0.0%N/A0.003%Search for SEC Filing on Google Icon
11/3/2026Calamos Advisors LLC88,732$20.68M0.1%+101.4%0.081%Search for SEC Filing on Google Icon
11/2/2026Kestra Advisory Services LLC18,820$4.39M0.0%+4.4%0.017%Search for SEC Filing on Google Icon
11/2/2026Inscription Capital LLC1,093$0.26M0.0%-33.5%0.001%Search for SEC Filing on Google Icon
11/2/2026Commonwealth Equity Services LLC43,698$10.19M0.0%-0.8%0.040%Search for SEC Filing on Google Icon
11/2/2026Collaborative Fund Advisors LLC2,658$0.62M0.3%+33.0%0.002%Search for SEC Filing on Google Icon
10/31/2026Boston Trust Walden Corp29,475$6.87M0.1%-3.1%0.027%Search for SEC Filing on Google Icon
10/31/2026Chicago Partners Investment Group LLC4,211$1.02M0.0%+19.8%0.004%Search for SEC Filing on Google Icon
10/31/2026Covestor Ltd513$0.12M0.1%-20.3%0.000%Search for SEC Filing on Google Icon
10/31/2026Caldwell Trust Co14,837$3.46M0.3%+12.7%0.013%Search for SEC Filing on Google Icon
10/31/2026Kelleher Financial Advisors540$0.13M0.0%-50.0%0.000%Search for SEC Filing on Google Icon
10/30/2026Rakuten Investment Management Inc.19,831$4.60M0.0%+9.8%0.018%Search for SEC Filing on Google Icon
10/30/2026AIA Group Ltd44,917$10.47M0.1%-12.5%0.041%Search for SEC Filing on Google Icon
10/30/2026Provenance Wealth Advisors LLC4,284$1M0.1%N/A0.004%Search for SEC Filing on Google Icon
10/30/2026Integrity Alliance LLC.7,058$1.65M0.1%-11.7%0.006%Search for SEC Filing on Google Icon
10/30/2026Eads & Heald Wealth Management1,399$0.33M0.2%-9.1%0.001%Search for SEC Filing on Google Icon
10/30/2026Gerber Kawasaki Wealth & Investment Management9,029$2.11M0.1%+60.5%0.008%Search for SEC Filing on Google Icon
10/30/2026Next Level Wealth Planning LLC108$25K0.0%N/A0.000%Search for SEC Filing on Google Icon
10/29/2026Bank Julius Baer & Co. Ltd Zurich212$49K0.0%N/A0.000%Search for SEC Filing on Google Icon
10/29/2026Greenleaf Trust3,468$0.81M0.0%-4.8%0.003%Search for SEC Filing on Google Icon
10/29/2026Sumitomo Mitsui Trust Group Inc.251,735$58.67M0.0%-2.7%0.228%Search for SEC Filing on Google Icon
10/29/2026Mirae Asset Global Investments Co. Ltd.29,825$6.95M0.0%N/A0.027%Search for SEC Filing on Google Icon
10/29/2026ProShare Advisors LLC18,253$4.25M0.0%+1.3%0.017%Search for SEC Filing on Google Icon
10/29/2026Vise Technologies Inc.4,650$1.08M0.0%+28.8%0.004%Search for SEC Filing on Google Icon
10/29/2026MGO One Seven LLC9,724$2.27M0.0%+2.7%0.009%Search for SEC Filing on Google Icon
10/29/2026State of Wyoming897$0.21M0.0%-13.9%0.001%Search for SEC Filing on Google Icon
10/28/2026Payden & Rygel62,340$14.53M1.1%-32.8%0.056%Search for SEC Filing on Google Icon
10/28/2026Lebenthal Global Advisors LLC5,979$1.39M0.2%+4.1%0.005%Search for SEC Filing on Google Icon
10/28/2026Partners Wealth Management LLC2,291$0.53M0.1%N/A0.002%Search for SEC Filing on Google Icon
10/28/2026Soltis Investment Advisors LLC2,022$0.47M0.0%N/A0.002%Search for SEC Filing on Google Icon
10/28/2026Choreo LLC2,215$0.52M0.0%+2.4%0.002%Search for SEC Filing on Google Icon
10/28/2026ICW Investment Advisors LLC11,597$2.70M1.0%-2.0%0.000%Search for SEC Filing on Google Icon
10/28/2026Motley Fool Asset Management LLC1,713$0.40M0.0%-6.3%0.000%Search for SEC Filing on Google Icon
10/28/2026North Dakota State Investment Board3,382$0.79M0.0%+2.1%0.000%Search for SEC Filing on Google Icon
10/28/2026VestGen Advisors LLC1,482$0.35M0.0%-4.8%0.000%Search for SEC Filing on Google Icon
10/28/2026Simplify Asset Management Inc.49,538$11.55M0.2%-0.4%0.000%Search for SEC Filing on Google Icon
10/27/2026Conning Inc.162,916$37.97M1.2%-12.8%0.148%Search for SEC Filing on Google Icon
10/27/2026Great Lakes Retirement Inc.9,889$2.31M0.2%+0.8%0.009%Search for SEC Filing on Google Icon
10/27/2026Generali Asset Management SPA SGR14,838$3.46M0.1%-2.0%0.013%Search for SEC Filing on Google Icon
10/27/2026Asset Management One Co. Ltd.58,053$13.53M0.0%+4.1%0.053%Search for SEC Filing on Google Icon
10/27/2026Schwartz Investment Counsel Inc.90,900$21.19M0.7%-5.2%0.082%Search for SEC Filing on Google Icon
10/26/2026Oppenheimer & Co. Inc.38,847$9.05M0.1%-0.4%0.035%Search for SEC Filing on Google Icon
10/26/2026Park Avenue Securities LLC8,966$2.09M0.0%-6.7%0.008%Search for SEC Filing on Google Icon
10/26/2026Gratus Wealth Advisors LLC2,017$0.47M0.1%-2.0%0.002%Search for SEC Filing on Google Icon
10/24/2026Apollon Wealth Management LLC9,046$2.11M0.0%+37.6%0.008%Search for SEC Filing on Google Icon
10/24/2026Kingswood Wealth Advisors LLC3,878$0.90M0.0%+1.4%0.004%Search for SEC Filing on Google Icon
10/24/2026Sigma Planning Corp4,342$1.11M0.0%+3.4%0.004%Search for SEC Filing on Google Icon
10/23/2026Radnor Capital Management LLC2,507$0.58M0.1%+99.4%0.002%Search for SEC Filing on Google Icon
10/23/2026Signaturefd LLC3,201$0.75M0.0%+47.9%0.003%Search for SEC Filing on Google Icon
10/23/2026Citizens Financial Group Inc. RI1,850$0.43M0.0%+60.0%0.002%Search for SEC Filing on Google Icon
10/23/2026Simplicity Wealth LLC25,650$5.98M0.2%+15.6%0.023%Search for SEC Filing on Google Icon
10/23/2026Sowell Financial Services LLC5,360$1.33M0.0%+11.3%0.005%Search for SEC Filing on Google Icon
10/23/2026Tectonic Advisors LLC4,031$0.94M0.0%+11.0%0.004%Search for SEC Filing on Google Icon
10/23/2026Manchester Capital Management LLC198$46K0.0%+92.2%0.000%Search for SEC Filing on Google Icon
10/23/2026Farmers & Merchants Investments Inc.4,102$1.01M0.0%+9.0%0.004%Search for SEC Filing on Google Icon
10/23/2026Wedbush Securities Inc.5,465$1.27M0.0%+280.3%0.005%Search for SEC Filing on Google Icon
10/23/2026Sterling Capital Management LLC7,235$1.69M0.0%+25.4%0.007%Search for SEC Filing on Google Icon
10/23/2026Kennebec Savings Bank4,538$1.06M0.8%+30.3%0.004%Search for SEC Filing on Google Icon
10/23/2026WASHINGTON TRUST Co960$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
10/22/2026Yousif Capital Management LLC25,173$5.87M0.1%+67.3%0.023%Search for SEC Filing on Google Icon
10/22/2026OLD Second National Bank of Aurora650$0.15M0.0%+44.4%0.001%Search for SEC Filing on Google Icon
10/22/2026Compass Wealth Management LLC295$69K0.0%N/A0.000%Search for SEC Filing on Google Icon
10/22/2026Brookstone Capital Management2,366$0.55M0.0%+82.4%0.002%Search for SEC Filing on Google Icon
10/22/2026Investment House LLC2,603$0.61M0.0%+4.0%0.002%Search for SEC Filing on Google Icon
10/22/2026E. Ohman J or Asset Management AB5,560$1.30M0.0%+40.8%0.005%Search for SEC Filing on Google Icon
10/22/2026SBI Securities Co. Ltd.441$0.11M0.0%+17.9%0.000%Search for SEC Filing on Google Icon
10/22/2026Marion Wealth Management14,584$3.40M0.7%+1.3%0.013%Search for SEC Filing on Google Icon
10/21/2026Axxcess Wealth Management LLC2,181$0.51M0.0%+38.8%0.002%Search for SEC Filing on Google Icon
10/21/2026Sawyer & Company Inc3,711$0.87M0.3%N/A0.003%Search for SEC Filing on Google Icon
10/21/2026Sowell Financial Services LLC5,360$1.33M0.0%+11.3%0.005%Search for SEC Filing on Google Icon
10/21/2026Quadrant Capital Group LLC3,477$0.81M0.0%+51.5%0.003%Search for SEC Filing on Google Icon
10/21/2026Pinnacle Associates Ltd.13,633$3.28M0.0%+7.1%0.012%Search for SEC Filing on Google Icon
10/21/2026Nisa Investment Advisors LLC23,604$5.50M0.0%+42.1%0.021%Search for SEC Filing on Google Icon
10/21/2026Integrated Advisors Network LLC1,769$0.41M0.0%+41.4%0.002%Search for SEC Filing on Google Icon
10/21/2026Robeco Institutional Asset Management B.V.122,316$31.20M0.0%+8.7%0.111%Search for SEC Filing on Google Icon
10/21/2026Diversify Advisory Services LLC4,724$1.10M0.0%+19.7%0.004%Search for SEC Filing on Google Icon
10/20/2026Prime Capital Investment Advisors LLC3,416$0.80M0.0%+257.7%0.003%Search for SEC Filing on Google Icon
10/20/2026Willis Investment Counsel117,200$27.32M1.2%-22.6%0.106%Search for SEC Filing on Google Icon
10/20/2026Commonwealth Financial Services LLC1,226$0.29M0.1%-22.8%0.001%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Quest Diagnostics logo
Quest Diagnostics Incorporated provides diagnostic testing and services in the United States and internationally. The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It offers diagnostic information services primarily under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, retailers, pharmaceutical companies and insurers, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile phlebotomists, nurses, and other health and wellness professionals. The company also provides risk assessment services for the life insurance industry; and healthcare organizations and clinicians information technology solutions. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey.
Read More on Quest Diagnostics

Today's Range

Now: $254.74
Low: $254.29
High: $259.00

50 Day Range

MA: $238.93
Low: $226.94
High: $255.59

52 Week Range

Now: $254.74
Low: $171.18
High: $259.00

Volume

143,258 shs

Average Volume

977,280 shs

Market Capitalization

$28.03 billion

P/E Ratio

25.37

Dividend Yield

1.39%

Beta

0.55

Who are the company insiders with the largest holdings of Quest Diagnostics?

Quest Diagnostics' top insider shareholders include:
  1. Stephen H Rusckowski (CEO)
  2. Stephen H Rusckowski (Chairman)
  3. Stephen H Rusckowski (CEO)
  4. Mark Guinan (CFO)
  5. Mark Guinan (Insider)
  6. Catherine T Doherty (SVP)
  7. J E Davis (CEO)
  8. Jon R Cohen (SVP)
  9. J E Davis (EVP)
  10. Michael E Prevoznik (SVP)
Learn More about top insider investors at Quest Diagnostics.

Who are the major institutional investors of Quest Diagnostics?

Quest Diagnostics' top institutional shareholders include:
  1. M&G PLC — 0.70%
  2. Sumitomo Mitsui Trust Group Inc. — 0.23%
  3. Eastern Bank — 0.19%
  4. Conning Inc. — 0.15%
  5. Candriam S.C.A. — 0.13%
  6. Robeco Institutional Asset Management B.V. — 0.11%
Learn More about top institutional investors of Quest Diagnostics stock.

Which institutional investors are selling Quest Diagnostics stock?

In the last quarter, DGX stock was sold by these institutional investors:
  1. Willis Investment Counsel
  2. Payden & Rygel
  3. M&G PLC
  4. Conning Inc.
  5. AEGON ASSET MANAGEMENT UK Plc
  6. Sumitomo Mitsui Trust Group Inc.
  7. AIA Group Ltd
  8. Schwartz Investment Counsel Inc.
In the previous year, company insiders that have sold Quest Diagnostics company stock include:
  1. J E Davis (CEO)
  2. Catherine T Doherty (EVP)
  3. Michael E Prevoznik (SVP)
  4. Gary M Pfeiffer (Director)
  5. Vicky B Gregg (Director)
  6. Patrick Plewman (SVP)
  7. Karthik Kuppusamy (SVP)
  8. Mark E Delaney (SVP)
Learn More investors selling Quest Diagnostics stock.

Which institutional investors are buying Quest Diagnostics stock?

During the last quarter, DGX stock was bought by institutional investors including:
  1. General American Investors Co. Inc.
  2. Calamos Advisors LLC
  3. Mirae Asset Global Investments Co. Ltd.
  4. Candriam S.C.A.
  5. Eastern Bank
  6. CWA Asset Management Group LLC
  7. Community Financial Services Group LLC
  8. Yousif Capital Management LLC