Insider holders · CIK 0001022079
QUEST DIAGNOSTICS INC · DGX
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Stephen H RusckowskiChairman, President and CEO | 213,049 | — | 213,049 | Mar 5, 2019 · 4:34 pm EST | Form 4 |
| J. E. DavisCEO and President | 122,423 | — | 122,423 | Sep 3, 2026 · 5:05 pm EDT | Form 4 |
| Catherine T. DohertySVP, Group Exec. Clin. Fran. | 73,416 | 3,925 | 77,341 | Mar 5, 2019 · 4:29 pm EST | Form 4 |
| Mark GuinanExecutive Vice President & CFO | 66,017 | — | 66,017 | Mar 5, 2019 · 4:30 pm EST | Form 4 |
| Michael E PrevoznikSVP & General Counsel | 36,557 | 5,780 | 42,337 | Aug 31, 2026 · 4:37 pm EDT | Form 4 |
| Everett CunninghamSVP, Commercial | 38,311 | 721 | 39,032 | Mar 5, 2019 · 4:26 pm EST | Form 4 |
| Daniel StanzioneDirector | 36,319 | — | 36,319 | May 17, 2018 · 5:35 pm EDT | Form 4 |
| Sam SamadExecutive Vice President & CFO | 33,478 | — | 33,478 | Jul 27, 2026 · 4:33 pm EDT | Form 4 |
| Jon R CohenSVP & Group Exec. Diag. Sol. | 31,757 | — | 31,757 | Mar 12, 2018 · 4:33 pm EDT | Form 4 |
| Timothy L MainDirector | 22,460 | 5,000 | 27,460 | Jul 27, 2026 · 4:33 pm EDT | Form 4 |
| Gail R WilenskyDirector | 26,604 | — | 26,604 | Feb 25, 2019 · 8:08 pm EST | Form 4 |
| Manner Carrie EglintonSVP, Advanced Diagnostics | 22,793 | — | 22,793 | Feb 27, 2019 · 6:27 pm EST | Form 4 |
| Jenne K BritellDirector | 6,025 | 14,479 | 20,504 | Jun 6, 2018 · 5:12 pm EDT | Form 4 |
| Vicky B GreggDirector | 18,386 | — | 18,386 | Jul 27, 2026 · 4:34 pm EDT | Form 4 |
| Gary M PfeifferDirector | 17,462 | — | 17,462 | May 17, 2018 · 5:29 pm EDT | Form 4 |
| John B ZieglerDirector | 16,557 | — | 16,557 | Feb 24, 2017 · 4:32 pm EST | Form 4 |
| Timothy M RingDirector | 16,496 | — | 16,496 | May 17, 2018 · 5:32 pm EDT | Form 4 |
| Patrick PlewmanSVP for Diagnostic Services | 15,293 | — | 15,293 | Jul 27, 2026 · 4:34 pm EDT | Form 4 |
| Karthik KuppusamySVP, Clinical Solutions | 13,557 | 1,691 | 15,248 | Jul 27, 2026 · 4:35 pm EDT | Form 4 |
| Thomas F BongiornoVP and Corporate Controller | 11,837 | 3,165 | 15,002 | Mar 3, 2015 · 6:26 pm EST | Form 4 |
| John C Baldwin M.D.Director | 12,949 | — | 12,949 | Aug 13, 2015 · 4:49 pm EDT | Form 4 |
| Mark E DelaneySVP & Chief Commercial Officer | 10,335 | — | 10,335 | Jul 29, 2026 · 5:04 pm EDT | Form 4 |
| Wright Lassiter IIIDirector | 10,323 | — | 10,323 | Jul 27, 2026 · 4:33 pm EDT | Form 4 |
| Robert A KlugVP, Corporate Controller | 6,261 | — | 6,261 | Mar 5, 2019 · 4:31 pm EST | Form 4 |
| Jeffrey M LeidenDirector | 6,000 | — | 6,000 | May 30, 2018 · 4:38 pm EDT | Form 4 |
| Robert B CarterDirector | 3,864 | — | 3,864 | Jul 27, 2026 · 4:35 pm EDT | Form 4 |
| Helen TorleyDirector | 1,644 | — | 1,644 | May 17, 2018 · 5:43 pm EDT | Form 4 |
| Denise M MorrisonDirector | 484 | — | 484 | Feb 20, 2019 · 6:44 pm EST | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.