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DGX Insider Trading

Insider Ownership Percentage: 0.88%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $34,789,916.25

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: $246.65
Price Change: ▲ Price Increase of +0.199 (0.08%)
As of 09/18/2026 03:59 PM 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
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
9/9/2026Sequoia Financial Advisors LLC33,797$7.16M0.0%+25.0%0.031%Search for SEC Filing on Google Icon
9/9/2026Tidal Investments LLC24,698$5.24M0.0%-33.4%0.022%Search for SEC Filing on Google Icon
9/9/2026National Pension Service46,067$9.76M0.0%-2.2%0.042%Search for SEC Filing on Google Icon
9/9/2026SVB Wealth LLC11,830$2.51M0.1%-8.1%0.011%Search for SEC Filing on Google Icon
9/9/2026Pinnacle Wealth Management Advisory Group LLC1,066$0.23M0.0%N/A0.001%Search for SEC Filing on Google Icon
9/9/2026Integrated Wealth Concepts LLC11,961$2.54M0.0%+5.2%0.011%Search for SEC Filing on Google Icon
9/9/2026NewEdge Advisors LLC12,508$2.65M0.0%+4.6%0.011%Search for SEC Filing on Google Icon
9/9/2026IFP Advisors Inc12,005$2.54M0.0%-3.7%0.011%Search for SEC Filing on Google Icon
9/9/2026Baird Financial Group Inc.17,006$3.60M0.0%+4.2%0.015%Search for SEC Filing on Google Icon
9/8/2026Arizona State Retirement System31,500$6.68M0.0%+4.2%0.029%Search for SEC Filing on Google Icon
9/8/2026Waverly Advisors LLC3,524$0.75M0.0%-31.1%0.003%Search for SEC Filing on Google Icon
9/8/2026Bank OZK15,322$3.25M1.0%+5.1%0.014%Search for SEC Filing on Google Icon
9/8/2026Empirical Finance LLC4,082$0.87M0.0%+3.2%0.004%Search for SEC Filing on Google Icon
9/8/2026Nykredit A S28,314$6M0.0%N/A0.026%Search for SEC Filing on Google Icon
8/27/2026Corient Private Wealth LP34,092$7.23M0.0%-13.3%0.031%Search for SEC Filing on Google Icon
8/26/2026Amundi498,751$105.71M0.0%+22.1%0.452%Search for SEC Filing on Google Icon
8/26/2026HighTower Advisors LLC67,692$14.35M0.0%+12.8%0.061%Search for SEC Filing on Google Icon
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al79,013$16.75M0.1%N/A0.072%Search for SEC Filing on Google Icon
8/24/2026Vancity Investment Management Ltd2,548$0.54M0.1%+90.9%0.002%Search for SEC Filing on Google Icon
8/23/2026Ameritas Advisory Services LLC211$45K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/23/2026Wedmont Private Capital3,120$0.65M0.0%+2.8%0.003%Search for SEC Filing on Google Icon
8/23/2026HB Wealth Management LLC12,123$2.57M0.0%+0.7%0.011%Search for SEC Filing on Google Icon
8/23/2026Saudi Central Bank7,691$1.63M0.0%+87.3%0.007%Search for SEC Filing on Google Icon
8/22/2026Strive Financial Group LLC279$59K0.0%-33.6%0.000%Search for SEC Filing on Google Icon
8/22/2026Munich Reinsurance Co Stock Corp in Munich24,324$5.16M0.1%+72.1%0.022%Search for SEC Filing on Google Icon
8/22/2026Raiffeisen Bank International AG239$51K0.0%+162.6%0.000%Search for SEC Filing on Google Icon
8/22/2026Syon Capital LLC3,595$0.76M0.0%+25.4%0.003%Search for SEC Filing on Google Icon
8/22/2026TD Waterhouse Canada Inc.37,951$8.20M0.0%+1.6%0.034%Search for SEC Filing on Google Icon
8/22/2026Concurrent Investment Advisors LLC5,183$1.10M0.0%+1.2%0.005%Search for SEC Filing on Google Icon
8/22/2026Prosperitas Financial LLC1,583$0.34M0.1%N/A0.001%Search for SEC Filing on Google Icon
8/22/2026NEOS Investment Management LLC17,210$3.65M0.0%+13.9%0.016%Search for SEC Filing on Google Icon
8/22/2026Power Wealth Management LLC1,000$0.21M0.1%N/A0.001%Search for SEC Filing on Google Icon
8/21/2026AXQ Capital LP1,697$0.36M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/21/2026Braidwell LP43,200$9.16M0.3%N/A0.039%Search for SEC Filing on Google Icon
8/21/2026Continuum Advisory LLC611$0.13M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/21/2026Nykredit A S33,940$7.19M0.0%N/A0.031%Search for SEC Filing on Google Icon
8/21/2026B. Metzler seel. Sohn & Co. AG10,247$2.17M0.0%+3.2%0.009%Search for SEC Filing on Google Icon
8/21/2026PFG Private Wealth Management LLC1,453$0.31M0.1%+5.1%0.001%Search for SEC Filing on Google Icon
8/20/2026Proficio Capital Partners LLC957$0.20M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026Railway Pension Investments Ltd66,000$13.99M0.2%+91.3%0.060%Search for SEC Filing on Google Icon
8/20/2026Ancora Advisors LLC137$29K0.0%-64.0%0.000%Search for SEC Filing on Google Icon
8/20/2026Benjamin Edwards Inc.7,447$1.58M0.0%-9.2%0.007%Search for SEC Filing on Google Icon
8/20/2026Cookson Peirce & Co. Inc.155,589$32.98M1.1%-0.5%0.141%Search for SEC Filing on Google Icon
8/20/2026Northwestern Mutual Wealth Management Co.26,801$5.68M0.0%+22.0%0.024%Search for SEC Filing on Google Icon
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC942,407$199.74M0.0%+11.3%0.854%Search for SEC Filing on Google Icon
8/19/2026New Mexico Educational Retirement Board5,503$1.17M0.0%+7.8%0.005%Search for SEC Filing on Google Icon
8/19/2026Royal London Asset Management Ltd.51,492$10.91M0.0%-0.2%0.047%Search for SEC Filing on Google Icon
8/19/2026Toth Financial Advisory Corp32,530$6.90M0.7%+9.3%0.029%Search for SEC Filing on Google Icon
8/19/2026Mufg Securities Americas Inc.3,334$0.71M0.0%+9.5%0.003%Search for SEC Filing on Google Icon
8/19/2026Nissay Asset Management Corp Japan14,901$3.16M0.0%+2.2%0.014%Search for SEC Filing on Google Icon
8/19/2026Braun Stacey Associates Inc.154,396$32.72M0.9%-1.6%0.140%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC224,986$47.79M0.0%+15.3%0.204%Search for SEC Filing on Google Icon
8/19/2026Prosperitas Financial LLC1,583$0.34M0.1%N/A0.001%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP87,570$18.56M0.0%-3.5%0.079%Search for SEC Filing on Google Icon
8/19/2026Archer Investment Corp232$49K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/18/2026Beacon Pointe Advisors LLC3,169$0.67M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/18/2026Livforsakringsbolaget Skandia Omsesidigt889$0.19M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/18/2026Rakuten Investment Management Inc.18,058$3.84M0.0%N/A0.016%Search for SEC Filing on Google Icon
8/18/2026Empowered Funds LLC10,624$2.25M0.0%N/A0.010%Search for SEC Filing on Google Icon
8/18/2026United Capital Financial Advisors LLC4,185$0.89M0.0%N/A0.004%Search for SEC Filing on Google Icon
8/18/2026Bank OZK15,322$3.25M1.0%N/A0.014%Search for SEC Filing on Google Icon
8/18/2026Old North State Trust LLC2,082$0.44M0.2%N/A0.002%Search for SEC Filing on Google Icon
8/18/2026Jefferies Financial Group Inc.17,375$3.68M0.0%N/A0.016%Search for SEC Filing on Google Icon
8/18/2026Public Employees Retirement System of Ohio66,246$14.04M0.0%N/A0.060%Search for SEC Filing on Google Icon
8/17/2026Capstone Investment Advisors LLC2,836$0.60M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/17/2026Proficio Capital Partners LLC957$0.20M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/17/2026Transamerica Financial Advisors LLC3,969$0.84M0.1%N/A0.004%Search for SEC Filing on Google Icon
8/17/2026Corient Private Wealth LP38,912$8.25M0.0%N/A0.035%Search for SEC Filing on Google Icon
8/17/2026Artia Global Partners LP65,122$13.80M2.5%N/A0.059%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE1,935,133$410.15M0.0%N/A1.753%Search for SEC Filing on Google Icon
8/15/2026Caisse de depot et placement du Quebec2,045$0.43M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/15/2026Man Group plc2,336$0.50M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/15/2026Roberts Glore & Co. Inc. IL11,349$2.41M0.6%N/A0.010%Search for SEC Filing on Google Icon
8/15/2026Jupiter Topco LLC10,393$2.20M0.0%N/A0.009%Search for SEC Filing on Google Icon
8/14/2026Hsbc Holdings PLC224,986$47.79M0.0%N/A0.204%Search for SEC Filing on Google Icon
8/14/2026Ancora Advisors LLC137$29K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/14/2026Canada Pension Plan Investment Board4,600$0.98M0.0%N/A0.004%Search for SEC Filing on Google Icon
8/14/2026Castleark Management LLC31,480$6.67M0.2%N/A0.029%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc717,085$151.99M0.0%N/A0.650%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company99,770$21.15M0.0%N/A0.090%Search for SEC Filing on Google Icon
8/14/2026Manning & Napier Advisors LLC3,663$0.78M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/14/2026Vega Investment Solutions7,071$1.50M0.2%N/A0.006%Search for SEC Filing on Google Icon
8/13/2026Cibc World Market Inc.7,488$1.59M0.0%N/A0.007%Search for SEC Filing on Google Icon
8/13/2026OMERS ADMINISTRATION Corp6,614$1.40M0.0%N/A0.006%Search for SEC Filing on Google Icon
8/13/2026Osmosis Investment Management UK Ltd2,358$0.50M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/13/2026Sanctuary Advisors LLC26,825$5.69M0.0%N/A0.024%Search for SEC Filing on Google Icon
8/13/2026Jericho Financial LLP1,622$0.34M0.2%N/A0.001%Search for SEC Filing on Google Icon
8/13/2026Connor Clark & Lunn Investment Management Ltd.3,113$0.66M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/13/2026Meiji Yasuda Asset Management Co Ltd.2,943$0.62M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/13/2026Te Ahumairangi Investment Management Ltd30,621$6.49M1.0%N/A0.028%Search for SEC Filing on Google Icon
8/13/2026Twin Tree Management LP2,097$0.44M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/13/2026Bank of Nova Scotia13,561$2.87M0.0%N/A0.012%Search for SEC Filing on Google Icon
8/12/2026Elevation Point Wealth Partners LLC6,487$1.38M0.0%N/A0.006%Search for SEC Filing on Google Icon
8/12/2026Daiichi Life Insurance Co. Ltd.7,033$1.49M0.0%N/A0.006%Search for SEC Filing on Google Icon
8/12/2026Commerce Bank38,935$8.25M0.0%N/A0.035%Search for SEC Filing on Google Icon
8/12/2026Northwestern Mutual Wealth Management Co.26,801$5.68M0.0%N/A0.024%Search for SEC Filing on Google Icon
8/12/2026Westpac Banking Corp294$62K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/12/2026Korea Investment CORP46,829$9.93M0.0%N/A0.042%Search for SEC Filing on Google Icon
8/12/2026EP Wealth Advisors LLC3,498$0.74M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/12/2026Callan Family Office LLC5,868$1.24M0.0%N/A0.005%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: $246.65
Low: $244.89
High: $247.63

50 Day Range

MA: $233.26
Low: $201.64
High: $247.49

52 Week Range

Now: $246.65
Low: $171.18
High: $248.70

Volume

1,924,761 shs

Average Volume

940,780 shs

Market Capitalization

$27.22 billion

P/E Ratio

26.18

Dividend Yield

1.40%

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. BlackRock Inc. — 8.40%
  2. Bank of America Corp DE — 1.75%
  3. UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC — 0.85%
  4. Legal & General Group Plc — 0.65%
  5. Bank of New York Mellon Corp — 0.57%
  6. Deutsche Bank AG — 0.53%
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. Tidal Investments LLC
  2. Diversified Management Inc.
  3. Corient Private Wealth LP
  4. Wellington Management Group LLP
  5. Braun Stacey Associates Inc.
  6. Waverly Advisors LLC
  7. National Pension Service
  8. SVB Wealth LLC
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. BlackRock Inc.
  2. Bank of America Corp DE
  3. Legal & General Group Plc
  4. Bank of New York Mellon Corp
  5. Deutsche Bank AG
  6. M.D. Sass LLC
  7. Advisors Capital Management LLC
  8. Mitsubishi UFJ Asset Management Co. Ltd.

Quest Diagnostics Active Insiders

Stephen H Rusckowski
Stephen H Rusckowski (Age 67)
CEO
J. E Davis
J. E Davis (Age 63)
CEO
2 recent trades
Mark Guinan
Mark Guinan (Age 63)
CFO
Michael J Deppe (Age 59)
CAO
Gail R Wilensky
Gail R Wilensky
Director
Daniel Stanzione
Daniel Stanzione
Director
Timothy M Ring
Timothy M Ring
Director
Vicky B Gregg
Vicky B Gregg
Director
Gary M Pfeiffer
Gary M Pfeiffer
Director
Catherine T Doherty
Catherine T Doherty
SVP
Michael E Prevoznik
Michael E Prevoznik (Age 64)
SVP
1 recent trades
Karthik Kuppusamy
Karthik Kuppusamy
SVP
1 recent trades
Mark E Delaney
Mark E Delaney
SVP
1 recent trades
Patrick Plewman
Patrick Plewman
SVPfor Diagnostic Services