Mark E. Delaney

Companies

• Quest DiagnosticsSVP & Chief Commercial Officer Nov 22, 2022 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• QDQuest Diagnostics DGX10,335 shares²$2.4M at $234.83Jul 28, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jul 28, 2026Sold 1,600 shares at $235.18 of Quest Diagnostics²
• Jul 22, 2026L 34 shares at $206.81 of Quest Diagnostics³
• Apr 20, 2026L 37 shares at $194.70 of Quest Diagnostics⁴
• Mar 4, 2026Shares withheld for tax 2,326 shares at $204.86 of Quest Diagnostics⁵
• Mar 4, 2026Granted 5,682 shares at $204.86 of Quest Diagnostics⁵
• Mar 2, 2026Shares withheld for tax 188 shares at $204.86 of Quest Diagnostics⁶
• Feb 18, 2026Shares withheld for tax 230 shares at $206.99 of Quest Diagnostics⁷
• Feb 18, 2026Shares withheld for tax 205 shares at $210.01 of Quest Diagnostics⁷
• Feb 18, 2026Granted 1,586 shares of Quest Diagnostics⁷
• Jan 28, 2026L 15 shares at $183.51 of Quest Diagnostics⁷
• Nov 18, 2025Sold 7,946 shares at $187.35 of Quest Diagnostics⁸
• Nov 18, 2025Exercised options 100 shares at $143.33 of Quest Diagnostics⁸
• Nov 18, 2025Exercised options 7,846 shares at $144.47 of Quest Diagnostics⁸
• Oct 21, 2025Granted 15 shares at $189.08 of Quest Diagnostics⁹
• Jul 21, 2025L 17 shares at $167.49 of Quest Diagnostics¹⁰
• May 13, 2025Sold 874 shares at $175.31 of Quest Diagnostics¹¹
• May 12, 2025Sold 874 shares at $175.72 of Quest Diagnostics¹¹
• Apr 21, 2025L 25 shares at $164.42 of Quest Diagnostics¹²
• Mar 26, 2025Shares withheld for tax 256 shares at $166.71 of Quest Diagnostics¹³
• Mar 4, 2025Shares withheld for tax 1,823 shares at $173.74 of Quest Diagnostics¹⁴
• Mar 4, 2025Granted 5,317 shares at $173.74 of Quest Diagnostics¹⁴
• Feb 26, 2025Shares withheld for tax 214 shares at $171.75 of Quest Diagnostics¹⁵
• Feb 19, 2025Shares withheld for tax 242 shares at $169.71 of Quest Diagnostics¹⁶
• Feb 12, 2025Granted 1,815 shares of Quest Diagnostics¹⁷
• Feb 5, 2025Sold 403 shares at $164.30 of Quest Diagnostics¹⁸