MTZ offering history
Every offering-related filing in MASTEC INC’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Jun 22, 2012.
| Date | Filing | What it means | |
|---|---|---|---|
| Aug 10, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 6, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 6, 2026 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jul 31, 2026 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Jul 7, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Feb 28, 2025 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Jun 6, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 5, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 5, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Dec 15, 2022 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Oct 7, 2022 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Sep 8, 2022 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Sep 8, 2022 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| May 27, 2022 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Jan 21, 2022 | 424B7 → | UPDATE | Resale prospectus — existing holders registering to sell |
| Dec 21, 2021 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Dec 19, 2019 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Aug 16, 2016 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Mar 8, 2013 | 424B2 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Mar 7, 2013 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Mar 1, 2013 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
Two honest limits. (1) A 424B takedown can price shares or notes— EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.
MTZ offering FAQ
When did MTZ last execute an offering?
Per SEC filings, MASTEC INC's most recent priced offering document is a 424B5 filed 2026-08-10. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did MTZ last announce or register an offering?
The most recent registration is a S-3ASR filed 2025-02-28. A registration is capacity to sell shares — not a sale.
Does an offering always mean dilution?
Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.