Quest Diagnostics insider trading
Every open-market purchase and sale by Quest Diagnostics's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.
| Date | Insider | Trade | Shares | Price | Value | 1M after | 3M after | 6M after |
|---|
Does following Quest Diagnostics’s insiders pay?
From February 5, 2010 to March 6, 2026, 27 insiders reported 4 open-market purchases and 134 sales not made under a pre-set plan in Quest Diagnostics. Twelve months after each purchase was reported, the shares were −1.8% against the S&P 500 on average (median −3.4%), over 4 purchases with a full year of prices; 50% beat the index. After sales, the shares moved −3.3% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on May 10, 2012 into $19,188 by November 2, 2026, +4.6% a year. It held shares 16% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $19,726 (+4.8% a year), and held throughout $71,450 (+14.6%).
| Insider | Role | Purchases | 12 months after their purchases | Beat the S&P 500 | Sales | 12 months after their sales | Latest report |
|---|---|---|---|---|---|---|---|
| Hagemann Robert | SVP & Chief Financial Officer | 0 | — | — | 22 | −5.5% (22) | January 30, 2012 |
| Bongiorno Thomas F | VP and Corporate Controller | 0 | — | — | 12 | −7.1% (12) | February 4, 2015 |
| Wilensky Gail R | Director | 0 | — | — | 10 | −2.3% (10) | July 28, 2021 |
| Ziegler John B | Director | 0 | — | — | 10 | −3.5% (10) | February 24, 2017 |
| Baldwin John C Md | Director | 0 | — | — | 9 | −9.1% (9) | August 13, 2015 |
| Britell Jenne K | Director | 0 | — | — | 9 | +2.3% (9) | April 26, 2017 |
| Doherty Catherine T. | SVP, Group Exec. Clin. Fran. | 0 | — | — | 7 | −1.7% (7) | May 11, 2021 |
| Pfeiffer Gary M | Director | 0 | — | — | 7 | +1.3% (7) | October 24, 2025 |
| Prevoznik Michael E | SVP & General Counsel | 0 | — | — | 7 | −5.0% (7) | September 3, 2024 |
| Miller Joan Elizabeth | SVP-Oncology & Neurology Srvcs | 0 | — | — | 6 | −7.7% (6) | February 27, 2012 |
| Mohapatra Surya N | Chairman, President & CEO | 0 | — | — | 5 | −10.5% (5) | January 30, 2012 |
| Leiden Jeffrey M | Director | 0 | — | — | 4 | −7.2% (4) | May 30, 2018 |
| Stanzione Daniel | Director | 0 | — | — | 4 | −1.2% (4) | February 12, 2015 |
| Buehler William F | Director | 0 | — | — | 3 | −4.5% (3) | February 14, 2014 |
| Gregg Vicky B | Director | 0 | — | — | 3 | +17.5% (2) | November 28, 2025 |
| Guinan Mark | Executive Vice President & CFO | 1 | +11.7% (1) | 100% | 2 | +4.2% (2) | June 17, 2019 |
| Kuppusamy Karthik | SVP, Clinical Solutions | 0 | — | — | 3 | −1.3% (2) | March 6, 2026 |
| Rusckowski Stephen H | Chairman, President and CEO | 2 | −20.4% (2) | 0% | 1 | +6.9% (1) | June 17, 2019 |
| Cunningham Everett | SVP, Commercial | 0 | — | — | 2 | +25.9% (2) | May 11, 2016 |
| Delaney Mark E | SVP & Chief Commercial Officer | 0 | — | — | 2 | +8.0% (2) | February 7, 2025 |
| Cohen Jon R | SVP and Chief Medical Officer | 0 | — | — | 1 | +5.5% (1) | November 18, 2014 |
| Gsk PLC | Director | 0 | — | — | 1 | −3.6% (1) | February 2, 2011 |
| Klug Robert A | VP, Corporate Controller | 0 | — | — | 1 | −19.6% (1) | February 27, 2018 |
| Main Timothy L | Director | 1 | +21.9% (1) | 100% | 0 | — | February 7, 2014 |
| Plewman Patrick | SVP for Diagnostic Services | 0 | — | — | 1 | +4.2% (1) | February 21, 2025 |
| Ring Timothy M | Director | 0 | — | — | 1 | −23.7% (1) | November 2, 2022 |
| Simmons Wayne R. | Vice President, Operations | 0 | — | — | 1 | −2.4% (1) | May 13, 2011 |
When several insiders traded Quest Diagnostics
Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Quest Diagnostics in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 11 selling crowds, −1.4%. One company's history is too short to judge by; the test across every company is the better guide.
| Month | Crowd | 3 months on, vs S&P 500 | 6 months | 12 months |
|---|---|---|---|---|
| February 28, 2025 | 3 selling | +1.3% | −3.2% | +6.9% |
| September 30, 2024 | 3 selling | −5.1% | +10.2% | +0.8% |
| February 28, 2017 | 3 selling | +8.7% | +6.4% | −9.4% |
| May 31, 2016 | 3 selling | +5.2% | +9.3% | +26.2% |
| November 28, 2014 | 3 selling | +6.8% | +12.6% | +4.1% |
| March 31, 2014 | 3 selling | −3.3% | +0.7% | +23.0% |
| July 31, 2013 | 3 selling | −3.3% | −16.6% | −9.6% |
| May 31, 2012 | 3 selling | −1.0% | −7.1% | −15.7% |
| November 30, 2011 | 6 selling | −11.4% | −9.2% | −16.0% |
| February 28, 2011 | 9 selling | +1.0% | −4.0% | −1.5% |
| April 30, 2010 | 3 selling | −10.9% | −14.8% | −17.7% |