---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-158356"
form_type: "8-K"
ticker: "MTZ"
cik: "0000015615"
company_name: "MASTEC INC"
filed_at: "2024-06-10T23:59:59+00:00"
generated_at: "2026-06-01T05:17:38.530000+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# MasTec issues $550M of 5.900% senior notes due 2029

## Summary
- Issued $550M aggregate principal amount of 5.900% senior unsecured notes due June 15, 2029.
- Interest payable semi-annually on June 15 and December 15, starting December 15, 2024.
- Notes are unsecured, not guaranteed by subsidiaries, structurally subordinated to secured debt.
- Company may redeem notes in whole or in part at specified redemption prices.

## SEC filing metadata
- accession: 0001193125-24-158356
- form_type: 8-K
- ticker: MTZ
- cik: 0000015615
- company_name: MASTEC INC
- filed_at: 2024-06-10T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/15615/000119312524158356/0001193125-24-158356-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/15615/000119312524158356/d765599d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-158356
- JSON: https://secwatch.observer/filing/0001193125-24-158356.json
- Plain text: https://secwatch.observer/filing/0001193125-24-158356.txt

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