Quest Diagnostics Incorporated

Estimated for Congress, as filed for insiders · by filing month · past 24 months

CD Catherine T. Doherty Executive Vice President 10 filings · 0 buys, 10 sales MP Michael E Prevoznik SVP & General Counsel 9 filings · 0 buys, 9 sales PP Patrick Plewman SVP for Diagnostic Services 7 filings · 0 buys, 7 sales JD J. E. Davis CEO and President 5 filings · 0 buys, 5 sales KK Karthik Kuppusamy SVP, Clinical Solutions 4 filings · 0 buys, 4 sales MD Mark E Delaney SVP & Chief Commercial Officer 3 filings · 0 buys, 3 sales CM Carol Devine Miller Representative (Spouse) 2 filings · 0 buys, 2 sales VG Vicky B Gregg Director 2 filings · 0 buys, 2 sales

All 13 filers

JJ Julie Johnson Representative (Joint) 2 filings · 1 buy, 2 sales GP Gary M Pfeiffer Director 2 filings · 0 buys, 2 sales AA Alan Armstrong Senator (Joint) 1 filing · 1 buy, 0 sales GC Gilbert Cisneros Representative 1 filing · 0 buys, 1 sale JL Julia Letlow Representative 1 filing · 1 buy, 1 sale

Catherine T. DohertySALE Executive Vice President $5.5M
22,105 sh across 7 lots
Exec Nov 3
Filed Nov 5 · 7:05 PM ET Gary M PfeifferSALE Director $292K
1,203 sh × $243.00
Exec Oct 26
Filed Oct 28 · 6:05 PM ET J. E. DavisSALE CEO and President $2.4M
10,000 sh × $242.72
Exec Sep 1
Filed Sep 3 · 5:05 PM ET Michael E PrevoznikSALE SVP & General Counsel $5.5M
22,677 sh across 3 lots
Exec Aug 28
Filed Aug 31 · 4:37 PM ET Carol Devine MillerSALE Representative (Spouse) $33K
$15K–50K bracket
Exec Mar 10 2025
Filed Aug 13 Julie JohnsonPURCHASE Representative (Joint) $8K
$1K–15K bracket
Exec Oct 30 2025
Filed Aug 5 † Julie JohnsonSALE Representative (Joint) $8K
$1K–15K bracket
Exec Oct 30 2025
Filed Aug 5 † Mark E DelaneySALE SVP & Chief Commercial Officer $376K
1,600 sh × $235.18
Exec Jul 28
Filed Jul 29 · 5:04 PM ET Alan ArmstrongPURCHASE Senator $16K
2 lots · $2K–30K bracket
Exec Mar 27
Filed Jul 21 † Karthik KuppusamySALE SVP, Clinical Solutions $1.6M
8,147 sh × $200.00
Exec Jun 4
Filed Jun 8 · 5:30 PM ET J. E. DavisSALE CEO and President $1.9M
10,000 sh × $194.14
Exec Jun 1
Filed Jun 2 · 5:30 PM ET Karthik KuppusamySALE SVP, Clinical Solutions $538K
2,628 sh × $204.86
Exec Mar 4
Filed Mar 6 · 5:30 PM ET Patrick PlewmanSALE SVP for Diagnostic Services $589K
2,855 sh × $206.21
Exec Mar 5
Filed Mar 6 · 5:30 PM ET Michael E PrevoznikSALE SVP & General Counsel $800K
3,878 sh × $206.21
Exec Mar 5
Filed Mar 6 · 5:30 PM ET Catherine T. DohertySALE EVP, Regional Businesses $1.1M
5,558 sh × $206.21
Exec Mar 5
Filed Mar 6 · 5:30 PM ET J. E. DavisSALE CEO and President $2.1M
10,000 sh × $212.52
Exec Mar 2
Filed Mar 4 · 5:30 PM ET Michael E PrevoznikSALE SVP & General Counsel $109K
526 sh × $207.73
Exec Mar 3
Filed Mar 4 · 5:30 PM ET Catherine T. DohertySALE EVP, Regional Businesses $131K
632 sh × $207.73
Exec Mar 3
Filed Mar 4 · 5:30 PM ET Catherine T. DohertySALE EVP, Regional Businesses $294K
1,433 sh × $204.83
Exec Feb 19
Filed Feb 20 · 5:30 PM ET Michael E PrevoznikSALE SVP & General Counsel $228K
1,111 sh × $204.83
Exec Feb 19
Filed Feb 20 · 5:30 PM ET Patrick PlewmanSALE SVP for Diagnostic Services $196K
958 sh × $204.83
Exec Feb 19
Filed Feb 20 · 5:30 PM ET Catherine T. DohertySALE EVP, Regional Businesses $5.3M
25,814 sh across 4 lots
Exec Feb 13
Filed Feb 17 · 5:30 PM ET Patrick PlewmanSALE SVP for Diagnostic Services $1.2M
5,662 sh × $204.00
Exec Feb 10
Filed Feb 12 · 5:30 PM ET Julia LetlowSALE Representative $8K
$1K–15K bracket
Exec Jul 24 2025
Filed Jan 13 † Julia LetlowPURCHASE Representative $8K
$1K–15K bracket
Exec Apr 28 2025
Filed Jan 13 †