---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-354111"
form_type: "8-K"
ticker: "MTZ"
cik: "0000015615"
company_name: "MASTEC INC"
filed_at: "2026-08-17T20:24:01+00:00"
generated_at: "2026-08-17T20:25:07.452291+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# MasTec completes $650M offering of 5.850% senior notes due 2036

## Summary
- Issued $650M aggregate principal of 5.850% senior unsecured notes due Sept 30, 2036 on Aug 17, 2026.
- Interest payable semi-annually Mar 30 and Sep 30, first payment Mar 30, 2027.
- Notes are senior unsecured, not guaranteed by subsidiaries, structurally subordinated to subsidiary obligations.
- Company may redeem notes at specified prices; customary events of default and remedies apply.

## SEC filing metadata
- accession: 0001193125-26-354111
- form_type: 8-K
- ticker: MTZ
- cik: 0000015615
- company_name: MASTEC INC
- filed_at: 2026-08-17T20:24:01+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/15615/000119312526354111/0001193125-26-354111-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/15615/000119312526354111/d299977d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-354111
- JSON: https://secwatch.observer/filing/0001193125-26-354111.json
- Plain text: https://secwatch.observer/filing/0001193125-26-354111.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.