Quest Diagnostics Inc.

DGX·NYSE·$192.98Share Price as of 11/2·$21BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/23/26 10-QQ2 ended 06/30/2607/23/26 10-QQ1 ended 03/31/2604/22/26 10-KFY 202502/26/26 10-QQ3 ended 09/30/2510/21/25

Disclosures

8-KCurrent report10/22/26 8-KCurrent report10/22/26 8-KCurrent report10/06/26 8-KCurrent report07/23/26 8-KCurrent report05/21/26

Prospectuses and Registrations

424B2Prospectus for primary offering04/28/26 424B2Prospectus for primary offering04/27/26 FWPFree writing prospectus04/27/26 S-3ASRAutomatic shelf registration06/20/25 424B2Prospectus for primary offering08/16/24

Proxies

DEF 14ADefinitive proxy04/06/26 DEFA14AAdditional proxy materials04/06/26 DEFA14AAdditional proxy materials04/11/25 DEF 14ADefinitive proxy04/04/25 DEFA14AAdditional proxy materials04/04/25

Ownership

Form 4Insider transaction10/28/26 144Proposed sale of securities10/26/26 Form 4Insider transaction10/23/26 Form 4Insider transaction10/23/26 Form 4Insider transaction10/23/26

Other

11-KEmployee stock purchase plan report06/18/26 11-KEmployee stock purchase plan report06/20/25 11-KEmployee stock purchase plan report06/21/24 11-KEmployee stock purchase plan report06/22/23 11-KEmployee stock purchase plan report06/23/22