Mastec Inc.

MTZ·NYSE·$390.75Share Price as of 11/2·$31BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/29/26 10-QQ2 ended 06/30/2607/30/26 10-QQ1 ended 03/31/2604/30/26 10-KFY 202502/26/26 10-QQ3 ended 09/30/2510/30/25

Disclosures

8-KCurrent report10/29/26 8-KCurrent report08/17/26 8-KCurrent report08/10/26 8-KCurrent report07/31/26 8-KCurrent report07/30/26

Prospectuses and Registrations

424B5Prospectus supplement08/10/26 424B5Prospectus supplement08/06/26 FWPFree writing prospectus08/06/26 424B7Prospectus07/31/26 S-3ASRAutomatic shelf registration02/28/25

Proxies

DEF 14ADefinitive proxy04/09/26 DEFA14AAdditional proxy materials04/09/26 DEF 14ADefinitive proxy04/10/25 DEFA14AAdditional proxy materials04/10/25 DEF 14ADefinitive proxy04/04/24

Ownership

Form 4Insider transaction08/18/26 Form 4Insider transaction08/18/26 Form 4Insider transaction08/18/26 Form 4Insider transaction08/18/26 Form 4Insider transaction08/18/26

Other

DD07/24/26 11-KEmployee stock purchase plan report06/26/26 ARSAnnual report to shareholders04/09/26 D/AD/A10/08/25 11-KEmployee stock purchase plan report06/26/25