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Quest Diagnostics Inc.

XNYS · SERVICES-MEDICAL LABORATORIES · SERVICES-MEDICAL LABORATORIES

2 articles20 insider tx12 holders0 supply chain2 selling intent filings0 new insiders

Research articles

Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.

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Recent insider activity

Date Insider Title Type Shares Price Value
6/4/2026 KUPPUSAMY KARTHIK SVP, Clinical Solutions OPTION_EXERCISE 3,320 $128 $424,047
6/4/2026 KUPPUSAMY KARTHIK SVP, Clinical Solutions OPTION_EXERCISE 4,827 $122 $587,953
6/4/2026 KUPPUSAMY KARTHIK SVP, Clinical Solutions SELL -8,147 $200 $1,629,400
6/4/2026 KUPPUSAMY KARTHIK SVP, Clinical Solutions OPTION_EXERCISE -3,320 $128 $424,047
6/4/2026 KUPPUSAMY KARTHIK SVP, Clinical Solutions OPTION_EXERCISE -4,827 $122 $587,953
6/1/2026 Davis J. E. CEO and President SELL -10,000 $194 $1,941,400
5/20/2026 PFEIFFER GARY M GRANT 1,142
5/20/2026 CARTER ROBERT B GRANT 1,142
5/20/2026 Gregg Vicky B GRANT 1,142
5/20/2026 Diaz Luis GRANT 1,142
5/20/2026 MAIN TIMOTHY L GRANT 1,142
5/20/2026 WENTWORTH TIMOTHY C GRANT 1,142
5/20/2026 Doi Tracey GRANT 1,142
5/20/2026 RING TIMOTHY M GRANT 1,142
5/20/2026 Lassiter Wright III GRANT 1,142
5/20/2026 MORRISON DENISE M GRANT 1,142
4/20/2026 SAMAD SAM Executive Vice President & CFO GRANT 108 $195 $21,027
4/20/2026 Plewman Patrick SVP for Diagnostic Services OTHER 49 $195 $9,540
4/20/2026 Gregg Vicky B GRANT 68 $195 $13,239
4/20/2026 CARTER ROBERT B OTHER 7 $195 $1,363

Insider Selling Intent (Form 144)

Date Filer Relationship Est. shares Filing
6/4/2026 KUPPUSAMY KARTHIK 8,147 SEC
6/1/2026 Davis J. E. 10,000 SEC

Institutional holdings

Institution Shares Value ($) Change % Filing date
Vanguard Group 14,392,082 $2,497,458,052 1/29/2026
BlackRock 10,059,403 $1,376,931,063 8/13/2024
State Street 5,382,547 $934,033,381 2/13/2026
JP Morgan Chase 4,145,896 $719,437,502 2/11/2026
Fidelity (FMR) 1,202,254 $208,627,187 2/17/2026
Citadel Advisors 504,936 $87,621,544 2/17/2026
DE Shaw 328,734 $57,045,211 2/17/2026
Millennium Management 115,616 $20,062,844 2/17/2026
Point72 100,301 $17,405,233 2/17/2026
AQR Capital 67,217 $11,664,209 2/17/2026
Two Sigma 47,984 $8,326,664 2/17/2026
Bridgewater Associates 3,518 $610,479 2/13/2026
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