QUEST DIAGNOSTICS INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Davis J. E. | CEO and President | Sale | 41,004 | $192.27 | $7,883,839 | 125,227 | Nov 25, 2025 |
| Gregg Vicky B | — | Sale | 1,250 | $191.76 | $239,700 | 17,037 | Nov 25, 2025 |
| DELANEY MARK E | SVP & Chief Commercial Officer | Option Exercise | 100 | $143.33 | $14,333 | 15,476 | Nov 18, 2025 |
| Davis J. E. | CEO and President | Tax Withholding | 7,143 | $175.57 | $1,254,097 | 120,480 | Nov 5, 2025 |
| PFEIFFER GARY M | — | Sale | 1,482 | $182.40 | $270,317 | 29,431 | Oct 22, 2025 |
| SAMAD SAM | Executive Vice President & CFO | Award / Grant | 68 | $189.08 | $12,857 | 25,741 | Oct 21, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | Award / Grant | 46 | $189.08 | $8,698 | 15,333 | Oct 21, 2025 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Award / Grant | 15 | $189.08 | $2,836 | 8,379 | Oct 21, 2025 |
| Gregg Vicky B | — | Award / Grant | 70 | $189.08 | $13,236 | 18,287 | Oct 21, 2025 |
| DELANEY MARK E | SVP & Chief Commercial Officer | Award / Grant | 15 | $189.08 | $2,836 | 7,530 | Oct 21, 2025 |
| CARTER ROBERT B | — | Award / Grant | 6 | $189.09 | $1,135 | 2,698 | Oct 21, 2025 |
| PREVOZNIK MICHAEL E | SVP & General Counsel | Sale | 144 | $188.66 | $27,167 | 38,117 | Sep 26, 2025 |
| PREVOZNIK MICHAEL E | SVP & General Counsel | Option Exercise | 175 | $103.57 | $18,125 | 38,292 | Sep 23, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | Sale | 1,975 | $185.00 | $365,375 | 15,269 | Aug 21, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | Sale | 4,532 | $183.00 | $829,356 | 17,244 | Aug 19, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | Sale | 1,975 | $180.00 | $355,500 | 17,244 | Aug 15, 2025 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Tax Withholding | 123 | $175.91 | $21,637 | 8,338 | Aug 13, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | Option Exercise | 3,560 | $86.63 | $308,403 | 24,745 | Aug 6, 2025 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Option Exercise | 5,224 | $112.17 | $585,976 | 15,884 | Jul 30, 2025 |
| SAMAD SAM | Executive Vice President & CFO | L | 72 | $167.50 | $12,060 | 25,673 | Jul 21, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | L | 80 | $167.49 | $13,399 | 21,185 | Jul 21, 2025 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | 27 | $167.50 | $4,523 | 10,660 | Jul 21, 2025 |
| Lassiter Wright III | — | L | 7 | $167.51 | $1,173 | 9,044 | Jul 21, 2025 |
| Gregg Vicky B | — | L | 79 | $167.50 | $13,233 | 18,217 | Jul 21, 2025 |
| DELANEY MARK E | SVP & Chief Commercial Officer | L | 17 | $167.49 | $2,847 | 7,515 | Jul 21, 2025 |
| CARTER ROBERT B | — | L | 7 | $167.51 | $1,173 | 2,692 | Jul 21, 2025 |
| SAMAD SAM | Executive Vice President & CFO | Tax Withholding | 850 | $169.01 | $143,659 | 25,601 | Jul 16, 2025 |
| CARTER ROBERT B | — | Award / Grant | 1,203 | — | — | 2,685 | May 15, 2025 |
| Diaz Luis | — | Award / Grant | 1,203 | — | — | 4,054 | May 15, 2025 |
| Gregg Vicky B | — | Award / Grant | 1,203 | — | — | 18,138 | May 15, 2025 |
| Doi Tracey | — | Award / Grant | 1,203 | — | — | 6,490 | May 15, 2025 |
| MAIN TIMOTHY L | — | Award / Grant | 1,203 | — | — | 26,297 | May 15, 2025 |
| MORRISON DENISE M | — | Award / Grant | 1,203 | — | — | 10,742 | May 15, 2025 |
| Lassiter Wright III | — | Award / Grant | 1,203 | — | — | 9,037 | May 15, 2025 |
| RING TIMOTHY M | — | Award / Grant | 1,203 | — | — | 29,507 | May 15, 2025 |
| PFEIFFER GARY M | — | Award / Grant | 1,203 | — | — | 30,669 | May 15, 2025 |
| DELANEY MARK E | SVP & Chief Commercial Officer | Sale | 874 | $175.31 | $153,221 | 7,498 | May 12, 2025 |
| SAMAD SAM | Executive Vice President & CFO | L | 74 | $164.42 | $12,167 | 26,451 | Apr 21, 2025 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | L | 27 | $164.42 | $4,439 | 10,612 | Apr 21, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | L | 81 | $164.42 | $13,318 | 21,087 | Apr 21, 2025 |
| Gregg Vicky B | — | Award / Grant | 68 | $164.42 | $11,181 | 16,935 | Apr 21, 2025 |
| DELANEY MARK E | SVP & Chief Commercial Officer | L | 25 | $164.42 | $4,111 | 9,246 | Apr 21, 2025 |
| Davis J. E. | CEO and President | Sale | 750 | $167.86 | $125,895 | 131,322 | Apr 2, 2025 |
| KUPPUSAMY KARTHIK | SVP, Clinical Solutions | Sale | 2,555 | $170.00 | $434,350 | 10,575 | Apr 2, 2025 |
| Plewman Patrick | SVP for Diagnostic Services | Tax Withholding | 162 | $166.71 | $27,007 | 20,988 | Mar 26, 2025 |
| DELANEY MARK E | SVP & Chief Commercial Officer | Tax Withholding | 256 | $166.71 | $42,678 | 9,221 | Mar 26, 2025 |
| PREVOZNIK MICHAEL E | SVP & General Counsel | Sale | 4,643 | $170.00 | $789,310 | 38,117 | Mar 17, 2025 |
| Doherty Catherine T. | EVP, Regional Businesses | Sale | 5,370 | $174.13 | $935,078 | 68,068 | Mar 5, 2025 |
| DEPPE MICHAEL J | SVP, Corp. Controller & CAO | Tax Withholding | 867 | $173.74 | $150,633 | 34,365 | Mar 4, 2025 |
| Doherty Catherine T. | EVP, Regional Businesses | Tax Withholding | 394 | $173.74 | $68,454 | 68,784 | Mar 4, 2025 |