Company Analysis

Quest Diagnostics Inc. (DGX)

NYSE: DGX · Services-Medical Laboratories · Secaucus, NJ · filing with the SEC since 1996
Grade5.2
◀ Past 6.5● Present 5.5▶ Future 3.6

Filings

257 filings since 2017 beside 739 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends. by Mar 1, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 22 days after the quarter ended. The proxy statement was last filed Apr 6, 2026.

Filings a yearinsider forms included
10494688282114143124
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 3 times in the last 36 months, the newest Oct 6, 2026.
Insider forms 739

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 10, 2026 SCHEDULE 13G Large holder notice
Oct 23, 2026 10-Q Quarterly report Sep 30, 2026
Oct 22, 2026 8-K items 2.02, 9.01 Results released · Current report
Oct 22, 2026 8-K item 8.01 Other event · Current report Oct 21, 2026
Oct 6, 2026 8-K item 5.02 Officer or director change · Current report
Aug 14, 2026 SCHEDULE 13G/A Large holder update, amended
Jul 23, 2026 10-Q Quarterly report Jun 30, 2026
Jul 23, 2026 8-K items 2.02, 9.01 Results released · Current report
Jun 18, 2026 11-K Employee plan annual report Dec 31, 2025
May 21, 2026 8-K item 5.07 Shareholder vote · Current report May 20, 2026
May 8, 2026 8-K items 1.01, 9.01 Major agreement signed · Current report May 6, 2026
May 1, 2026 8-K items 8.01, 9.01 Other event · Current report Apr 27, 2026
Apr 30, 2026 SCHEDULE 13G Large holder notice
Apr 29, 2026 SCHEDULE 13G Large holder notice
Apr 28, 2026 424B2 Offering prospectus, notes or structured products
Apr 27, 2026 FWP Offering communication
Apr 27, 2026 424B2 Offering prospectus, notes or structured products
Apr 22, 2026 10-Q Quarterly report Mar 31, 2026
Apr 21, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 6, 2026 DEFA14A Extra proxy material
Apr 6, 2026 DEF 14A Proxy statement May 20, 2026
Mar 27, 2026 SCHEDULE 13G/A Large holder update, amended
Mar 12, 2026 8-K items 5.02, 7.01, 9.01 Officer or director change; Investor disclosure (Regulation FD) · Current report Mar 9, 2026
Feb 26, 2026 10-K Annual report Dec 31, 2025
Feb 10, 2026 8-K items 2.02, 8.01, 9.01 Results released; Other event · Current report
Jan 12, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Oct 21, 2025 8-K items 2.02, 9.01 Results released · Current report
Oct 21, 2025 10-Q Quarterly report Sep 30, 2025
Aug 14, 2025 SCHEDULE 13G/A Large holder update, amended
Jul 23, 2025 10-Q Quarterly report Jun 30, 2025
Jul 22, 2025 8-K items 2.02, 9.01 Results released · Current report
Jun 20, 2025 11-K Employee plan annual report Dec 31, 2024
Jun 20, 2025 S-3ASR Shelf registration
May 22, 2025 8-K item 5.07 Shareholder vote · Current report May 15, 2025
May 14, 2025 SCHEDULE 13G Large holder notice
Apr 23, 2025 10-Q Quarterly report Mar 31, 2025
Apr 22, 2025 8-K items 2.02, 9.01 Results released · Current report
Apr 17, 2025 SCHEDULE 13G/A Large holder update, amended
Apr 11, 2025 DEFA14A Extra proxy material
Apr 4, 2025 DEFA14A Extra proxy material
40 of 257 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton DGX · research, not advice