Quest Diagnostics Company Insiders
| DGX Stock | USD 182.74 1.50 0.81% |
Quest Diagnostics' insiders are aggressively selling. The analysis of insiders' sentiment of trading Quest Diagnostics Incorporated stock suggests that vertually all insiders are panicking at this time. Quest Diagnostics employs about 45 K people. The company is managed by 30 executives with a total tenure of roughly 213 years, averaging almost 7.0 years of service per executive, having 1500.0 employees per reported executive.
| Stephen Rusckowski CEO CEO and President Director and Member of Executive Committee |
| Daniel Stanzione Chairman Non-Executive Chairman of the Board |
Insider Sentiment 0
Mostly Selling
Selling | Buying |
Latest Trades
| 2025-10-22 | Gary M Pfeiffer | Disposed 1482 @ 182.4 | View | ||
| 2025-09-26 | Michael E Prevoznik | Disposed 227 @ 188.13 | View | ||
| 2025-09-24 | Michael E Prevoznik | Disposed 175 @ 187.02 | View | ||
| 2025-09-23 | Michael E Prevoznik | Disposed 28288 @ 187.12 | View | ||
| 2025-08-21 | Patrick Plewman | Disposed 1975 @ 185 | View | ||
| 2025-08-19 | Patrick Plewman | Disposed 4532 @ 183 | View | ||
| 2025-08-15 | Patrick Plewman | Disposed 1975 @ 180 | View | ||
| 2025-08-06 | Patrick Plewman | Disposed 5535 @ 175 | View | ||
| 2025-07-31 | Karthik Kuppusamy | Disposed 2210 @ 170 | View | ||
| 2025-07-30 | Karthik Kuppusamy | Disposed 8269 @ 167.4 | View | ||
| 2025-05-12 | Mark E Delaney | Disposed 874 @ 175.72 | View | ||
| 2025-04-02 | J. E Davis | Disposed 39191 @ 168.46 | View | ||
| 2025-03-17 | Michael E Prevoznik | Disposed 4643 @ 170 | View | ||
| 2025-03-10 | Carol D. Miller | Disposed @ 173.07 | |||
| 2025-03-05 | Catherine T Doherty | Disposed 5370 @ 174.13 | View | ||
| 2025-02-27 | Michael E Prevoznik | Disposed 528 @ 172.61 | View | ||
| 2025-02-20 | Michael E Prevoznik | Disposed 604 @ 170.99 | View | ||
| 2025-02-19 | Catherine T Doherty | Disposed 535 @ 169.71 | View |
Monitoring Quest Diagnostics' insider sentiment can offer insights into its future performance, as insiders often have access to more information about their company's operations, financial health, and upcoming initiatives than the general public. However, it's essential to note that insider trading is regulated by securities laws, and insiders are required to disclose their trades publicly to ensure transparency and prevent unfair advantages based on non-public information.
Check out Investing Opportunities to better understand how to build diversified portfolios, which includes a position in Quest Diagnostics Incorporated. Also, note that the market value of any company could be closely tied with the direction of predictive economic indicators such as signals in census. Quest Diagnostics' Workforce Through the Years
Please note that employee historical analysis has become an increasingly important factor for investors assessing the risk associated with Quest Diagnostics' future performance. Based on our forecasts, it is anticipated that Quest will maintain a workforce of slightly above 45000 employees by March 2026.Quest Diagnostics' latest congressional trading
Congressional trading in companies like Quest Diagnostics, is subject to rigorous scrutiny to prevent conflicts of interest and insider trading. This is governed by multiple SEC regulations which were established to foster transparency and deter members of Congress from leveraging non-public information for personal gain. This oversight helps maintain public trust and ensures that investments in Quest Diagnostics by those in governmental positions are based on the same information available to the general public.
| 2025-12-12 | Representative Julie Johnson | Acquired Under $15K | Verify | ||
| 2024-02-13 | Senator Tommy Tuberville | Acquired $15K to $50K | Verify | ||
| 2024-01-02 | Senator Thomas R Carper | Acquired Under $15K | Verify | ||
| 2020-07-07 | Representative Dean Phillips | Acquired Under $15K | Verify |
Quest Diagnostics Management Team Effectiveness
The company has Return on Asset of 0.0612 % which means that on every $100 spent on assets, it made $0.0612 of profit. This is way below average. In the same way, it shows a return on shareholders' equity (ROE) of 0.1435 %, implying that it generated $0.1435 on every 100 dollars invested. Quest Diagnostics' management efficiency ratios could be used to measure how well Quest Diagnostics manages its routine affairs as well as how well it operates its assets and liabilities. Return On Capital Employed is likely to rise to 0.10 in 2026, whereas Return On Tangible Assets are likely to drop 0.14 in 2026. At this time, Quest Diagnostics' Total Assets are fairly stable compared to the past year. Non Current Assets Total is likely to rise to about 16.6 B in 2026, whereas Non Currrent Assets Other are likely to drop slightly above 179.6 M in 2026.Common Stock Shares Outstanding is likely to rise to about 126.7 M in 2026, whereas Net Income Applicable To Common Shares is likely to drop slightly above 773.7 M in 2026. Quest Diagnostics owns a total of 111.24 Million outstanding shares. The majority of Quest Diagnostics Incorporated outstanding shares are owned by third-party entities. These institutional holders are usually referred to as non-private investors looking to secure positions in Quest Diagnostics to benefit from reduced commissions. Consequently, institutional investors are subject to a different set of regulations than regular investors in Quest Diagnostics. Please pay attention to any change in the institutional holdings of Quest Diagnostics as this could imply that something significant has changed or is about to change at the company. Please note that on December 12, 2025, Representative Julie Johnson of US Congress acquired under $15k worth of Quest Diagnostics's common stock.
Shares in Circulation | First Issued 1996-09-30 | Previous Quarter 113 M | Current Value 113 M | Avarage Shares Outstanding 157.4 M | Quarterly Volatility 33.2 M |
Quest Diagnostics Workforce Comparison
Quest Diagnostics Incorporated is rated # 3 in number of employees category among its peers. The total workforce of Health Care industry is currently estimated at about 283,572. Quest Diagnostics retains roughly 45,000 in number of employees claiming about 16% of equities under Health Care industry.
Quest Diagnostics Profit Margins
The company has Net Profit Margin of 0.09 %, which implies that it may need a different competitive strategy as even a very small decline in it revenue may erase profits and result in a net loss. This is way below average. In the same way, it shows Net Operating Margin of 0.15 %, which entails that for every 100 dollars of revenue, it generated $0.15 of operating income.| Current Value | Last Year | Change From Last Year | 10 Year Trend | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Gross Profit Margin | 0.43 | 0.38 |
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Quest Diagnostics Insider Trading History
Some recent studies suggest that insider trading raises the cost of capital for securities issuers and decreases overall economic growth. Trading by specific Quest Diagnostics insiders, such as employees or executives, is commonly permitted as long as it does not rely on Quest Diagnostics' material information that is not in the public domain. Local jurisdictions usually require such trading to be reported in order to monitor insider transactions. In many U.S. states, trading conducted by corporate officers, key employees, directors, or significant shareholders must be reported to the regulator or publicly disclosed, usually within a few business days of the trade. In these cases, Quest Diagnostics insiders must file a Form 4 with the U.S. Securities and Exchange Commission (SEC) when buying or selling shares of their own companies.
| Buy/Sell Ratio | # Purchases Trades | # Sales Trades | Total Shares Purchased | Total Shares Sold | |
|---|---|---|---|---|---|
| 2025-12-01 | 1.6667 | 10 | 6 | 8,556 | 28,930 |
| 2025-09-01 | 0.8 | 16 | 20 | 45,736 | 96,165 |
| 2025-06-01 | 0.8889 | 16 | 18 | 11,522 | 43,494 |
| 2025-03-01 | 0.7381 | 31 | 42 | 282,212 | 87,684 |
| 2024-12-01 | 0.6667 | 10 | 15 | 87,477 | 175,783 |
| 2024-09-01 | 1.0 | 7 | 7 | 33,054 | 71,616 |
| 2024-06-01 | 14.0 | 14 | 1 | 13,868 | 1,760 |
| 2024-03-01 | 0.8286 | 29 | 35 | 270,540 | 42,779 |
| 2023-09-01 | 1.3333 | 4 | 3 | 444.00 | 4,099 |
| 2023-03-01 | 1.0714 | 30 | 28 | 325,415 | 86,031 |
| 2022-12-01 | 0.4615 | 12 | 26 | 76,674 | 153,117 |
| 2022-09-01 | 0.8 | 8 | 10 | 6,686 | 31,658 |
| 2022-06-01 | 0.7826 | 18 | 23 | 446,378 | 870,746 |
| 2022-03-01 | 0.9231 | 24 | 26 | 429,415 | 111,141 |
| 2021-12-01 | 0.3333 | 2 | 6 | 37,853 | 75,130 |
| 2021-09-01 | 0.6429 | 9 | 14 | 201,285 | 400,134 |
| 2021-06-01 | 2.5 | 10 | 4 | 56,169 | 98,419 |
| 2021-03-01 | 0.9231 | 24 | 26 | 463,051 | 82,096 |
| 2020-12-01 | 0.4118 | 7 | 17 | 426,175 | 868,904 |
| 2020-09-01 | 0.6667 | 2 | 3 | 58,595 | 116,784 |
| 2020-06-01 | 1.1176 | 19 | 17 | 110,225 | 197,091 |
| 2020-03-01 | 0.4833 | 29 | 60 | 832,658 | 810,262 |
| 2019-12-01 | 0.5556 | 5 | 9 | 53,108 | 121,082 |
| 2019-09-01 | 1.5 | 3 | 2 | 5,575 | 10,000 |
| 2019-06-01 | 0.7273 | 16 | 22 | 440,723 | 933,661 |
| 2019-03-01 | 0.675 | 27 | 40 | 640,841 | 94,646 |
| 2018-12-01 | 1.0 | 2 | 2 | 1,582 | 1,775 |
| 2018-09-01 | 0.4615 | 6 | 13 | 132,909 | 270,528 |
| 2018-06-01 | 1.8571 | 13 | 7 | 245,797 | 470,394 |
| 2018-03-01 | 0.4844 | 31 | 64 | 818,373 | 615,774 |
| 2017-12-01 | 1.0 | 1 | 1 | 330.00 | 9.00 |
| 2017-09-01 | 0.6957 | 16 | 23 | 106,739 | 217,026 |
| 2017-06-01 | 0.8696 | 20 | 23 | 244,698 | 379,799 |
| 2017-03-01 | 0.6154 | 32 | 52 | 793,137 | 388,902 |
| 2016-12-01 | 0.6364 | 7 | 11 | 34,791 | 76,976 |
| 2016-09-01 | 0.4 | 8 | 20 | 15,022 | 38,521 |
| 2016-06-01 | 1.0 | 19 | 19 | 207,033 | 378,361 |
| 2016-03-01 | 0.9688 | 31 | 32 | 768,157 | 37,464 |
| 2015-12-01 | 2.0 | 2 | 1 | 2,096 | 1,188 |
| 2015-09-01 | 0.5 | 4 | 8 | 3,393 | 23,223 |
| 2015-06-01 | 6.5 | 13 | 2 | 28,727 | 7,281 |
| 2015-03-01 | 0.7353 | 25 | 34 | 691,591 | 87,591 |
| 2014-12-01 | 0.7333 | 11 | 15 | 205,270 | 408,580 |
| 2014-09-01 | 0.5882 | 10 | 17 | 86,423 | 164,420 |
| 2014-06-01 | 1.1667 | 14 | 12 | 69,984 | 93,506 |
| 2014-03-01 | 0.931 | 27 | 29 | 718,279 | 269,116 |
| 2013-12-01 | 0.4286 | 6 | 14 | 56,247 | 119,566 |
| 2013-09-01 | 0.8 | 8 | 10 | 183,792 | 181,685 |
| 2013-06-01 | 1.4737 | 28 | 19 | 241,052 | 347,934 |
| 2013-03-01 | 0.7143 | 25 | 35 | 561,099 | 76,957 |
| 2012-12-01 | 0.6667 | 2 | 3 | 47,446 | 93,573 |
| 2012-09-01 | 0.5833 | 14 | 24 | 272,457 | 526,735 |
| 2012-06-01 | 1.25 | 30 | 24 | 403,796 | 246,935 |
| 2012-03-01 | 0.6531 | 32 | 49 | 865,372 | 1,070,734 |
| 2011-12-01 | 0.7 | 14 | 20 | 292,360 | 509,980 |
| 2011-09-01 | 0.4 | 2 | 5 | 34,175 | 69,850 |
| 2011-06-01 | 0.5294 | 9 | 17 | 85,923 | 369,672 |
| 2011-03-01 | 0.5641 | 22 | 39 | 609,985 | 579,316 |
| 2010-06-01 | 6.0 | 6 | 1 | 29,001 | 1,173 |
| 2010-03-01 | 0.8 | 16 | 20 | 545,439 | 366,685 |
| 2009-12-01 | 0.4 | 2 | 5 | 18,407 | 62,637 |
| 2009-09-01 | 0.6667 | 6 | 9 | 234,236 | 358,472 |
| 2009-03-01 | 0.9565 | 22 | 23 | 360,097 | 150,876 |
| 2008-12-01 | 0.6667 | 4 | 6 | 120,232 | 201,935 |
| 2008-03-01 | 2.3333 | 7 | 3 | 248,579 | 6,287 |
| 2007-06-01 | 2.75 | 11 | 4 | 37,381 | 2,092 |
| 2007-03-01 | 1.1351 | 42 | 37 | 687,049 | 339,277 |
| 2006-12-01 | 1.5 | 6 | 4 | 103,482 | 204,000 |
| 2006-06-01 | 1.7273 | 19 | 11 | 209,261 | 273,253 |
| 2006-03-01 | 1.8571 | 13 | 7 | 576,413 | 127,414 |
| 2005-09-01 | 1.6667 | 10 | 6 | 46,667 | 59,999 |
| 2005-06-01 | 1.0 | 8 | 8 | 53,015 | 67,700 |
| 2005-03-01 | 1.2222 | 11 | 9 | 266,899 | 219,476 |
| 2004-12-01 | 0.4516 | 14 | 31 | 276,225 | 572,270 |
| 2004-09-01 | 0.4048 | 17 | 42 | 335,140 | 687,500 |
| 2004-06-01 | 0.6667 | 28 | 42 | 372,751 | 668,767 |
| 2004-03-01 | 0.5676 | 21 | 37 | 511,883 | 594,113 |
| 2003-12-01 | 0.6471 | 11 | 17 | 132,988 | 293,520 |
| 2003-09-01 | 0.875 | 7 | 8 | 21,513 | 27,052 |
Quest Diagnostics Notable Stakeholders
A Quest Diagnostics stakeholder refers to an individual interested in an outcome of the business. Different stakeholders have different interests, and companies such as Quest Diagnostics often face trade-offs trying to please all of them. Quest Diagnostics' stakeholders can have a positive or negative influence on the entity's direction, and there are a lot of executives involved in getting Quest Diagnostics' stock to the level that pleases all shareholders. Keeping track of the stakeholders is a great way to stay on top of things affecting its ongoing price.
| Stephen Rusckowski | CEO and President Director and Member of Executive Committee | Profile | |
| Daniel Stanzione | Non-Executive Chairman of the Board | Profile | |
| Michael Prevoznik | Senior Vice President General Counsel | Profile | |
| Catherine Doherty | Senior Vice President, Group Executive - Clinical Franchise Solutions and Marketing | Profile | |
| Gabrielle Wolfson | Senior Vice President and Chief Information and Digital Officer | Profile | |
| Carrie Manner | Senior Vice President - Advanced Diagnostics | Profile | |
| Michael Deppe | Vice President Corporate Controller and Chief Accounting Officer and Principal Accounting Officer | Profile | |
| Mark Guinan | Chief Financial Officer, Executive Vice President | Profile | |
| James Davis | Executive Vice President, General Diagnostics | Profile | |
| Sam Samad | Executive CFO | Profile | |
| Gail Wilensky | Independent Director | Profile | |
| Wright Lassiter | Independent Director | Profile | |
| Gary Pfeiffer | Independent Director | Profile | |
| Vicky Gregg | Independent Director | Profile | |
| Helen Torley | Independent Director | Profile | |
| Shawn Bevec | Executive Director Investor Relations | Profile | |
| Timothy Main | Independent Director | Profile | |
| Denise Morrison | Independent Director | Profile | |
| Timothy Ring | Lead Independent Director | Profile | |
| Patrick Plewman | Senior Services | Profile | |
| Garry Clark | Senior Officer | Profile | |
| Kristin Esq | Senior Officer | Profile | |
| Murali Balakumar | Senior Officer | Profile | |
| Cecilia McKenney | Senior Officer | Profile | |
| Tracey Doi | Independent Director | Profile | |
| Karthik Kuppusamy | Senior Solutions | Profile | |
| Manuel Mendez | Senior Vice President Chief Commercial Officer | Profile | |
| Dermot Shorten | MA Strategy | Profile | |
| Gary Samuels | Senior Officer | Profile | |
| Michael JD | Senior Counsel | Profile |
About Quest Diagnostics Management Performance
The success or failure of an entity such as Quest Diagnostics often depends on how effective the management is. Quest Diagnostics management team is responsible for propelling the future growth in the right direction and administering and controlling the business activities and accounting for the results. Ineffective management usually contributes to failure in the company's future performance for all stakeholders equally, but most importantly, for investors. So it is important to measure the effectiveness of Quest management before purchasing its stock. In many ways, it's all about finding the answer to one important question - Are they doing the right thing right now? How would we assess whether the Quest management is utilizing all available resources in the best possible way? Also, how well is the company doing relative to others in its sector and the market as a whole? The answer can be found by analyzing a few important fundamental indicators such as return on assets and return on equity.
| Last Reported | Projected for Next Year | ||
| Return On Tangible Assets | 0.16 | 0.14 | |
| Return On Capital Employed | 0.09 | 0.10 | |
| Return On Assets | 0.05 | 0.04 | |
| Return On Equity | 0.12 | 0.08 |
Please note, the imprecision that can be found in Quest Diagnostics' accounting process means that the reasonable investor should take a skeptical approach toward the financial statement analysis of Quest Diagnostics Incorporated. Check Quest Diagnostics' Beneish M Score to see the likelihood of Quest Diagnostics' management manipulating its earnings.
Quest Diagnostics Workforce Analysis
Traditionally, organizations such as Quest Diagnostics use manpower efficiency calculations for various incentive schemes, employee appraisal, or as an initiative to improve the processes. However, it can also be used by investors to make long-term investment decisions. The trends in the profit per employee or revenue per employee are measured by net income or revenue divided by the current number of full-time employees over a given time interval. Because workforce needs differ across sectors, these ratios could be used to compare Quest Diagnostics within its industry.Quest Diagnostics Manpower Efficiency
Return on Quest Diagnostics Manpower
| Revenue Per Employee | 219.4K | |
| Revenue Per Executive | 329.1M | |
| Net Income Per Employee | 20.5K | |
| Net Income Per Executive | 30.7M | |
| Working Capital Per Employee | 5K | |
| Working Capital Per Executive | 7.4M |
Additional Tools for Quest Stock Analysis
When running Quest Diagnostics' price analysis, check to measure Quest Diagnostics' market volatility, profitability, liquidity, solvency, efficiency, growth potential, financial leverage, and other vital indicators. We have many different tools that can be utilized to determine how healthy Quest Diagnostics is operating at the current time. Most of Quest Diagnostics' value examination focuses on studying past and present price action to predict the probability of Quest Diagnostics' future price movements. You can analyze the entity against its peers and the financial market as a whole to determine factors that move Quest Diagnostics' price. Additionally, you may evaluate how the addition of Quest Diagnostics to your portfolios can decrease your overall portfolio volatility.