Quest Diagnostics Incorporated (DGX) Institutional Ownership & Insider Trading

1,104 institutions reported holding Quest Diagnostics Incorporated shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 30 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-09-30 · read by EquiReason

DGXQuest Diagnostics IncorporatedFollow DGX — free

Diagnostics & Research · Healthcare

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Market cap: 26.6B
P/E TTM: 24.1
Dividend yield: 1.4%
52-week: —
Next earnings: 8 Feb, in 107 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

1,104 institutions held 95.4% of the shares. Across filers that reported both quarters, shares held changed +1.0%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	1,104	105	+1.0%	358	85	284	54
Mar 26	1,056	102	-2.2%	290	85	324	60
Dec 25	1,030	106	-4.5%	281	86	288	69
Sep 25	979	109	+2.1%	301	77	279	57
Jun 25	965	107	+3.8%	307	80	281	54
Mar 25	939	102	+4.0%	269	111	282	42
Dec 24	868	99	-0.4%	263	50	245	46
Sep 24	825	96	-1.9%	247	69	259	53

Quest Diagnostics Incorporated — questions

Who owns Quest Diagnostics Incorporated stock?: 1,104 institutions reported Quest Diagnostics Incorporated shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (8.4%), VANGUARD CAPITAL MANAGEMENT LLC (6.6%), VANGUARD PORTFOLIO MANAGEMENT LLC (5.6%).
Are Quest Diagnostics Incorporated insiders buying or selling?: 30 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Quest Diagnostics Incorporated's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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