---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-242403"
form_type: "8-K"
ticker: "MTZ"
cik: "0000015615"
company_name: "MASTEC INC"
filed_at: "2022-09-12T23:59:59+00:00"
generated_at: "2026-06-23T11:00:37.113148+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# MasTec extends exchange offer for IEA 6.625% Senior Notes to Oct 14; 25.8% tendered

## Summary
- Consent deadline and early tender date moved to Sept 23; expiration extended to Oct 14, 2022.
- Holders of 25.8% of outstanding IEA notes tendered as of Sept 9, 2022.
- Exchange offer is conditioned on closing of MasTec-IEA merger, expected in Oct 2022.
- Offering up to $300M of new 6.625% MasTec Senior Notes due 2029 in exchange for IEA notes.
- Proposed amendments to IEA note indenture require majority consent; early tender premium available.

## SEC filing metadata
- accession: 0001193125-22-242403
- form_type: 8-K
- ticker: MTZ
- cik: 0000015615
- company_name: MASTEC INC
- filed_at: 2022-09-12T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/15615/000119312522242403/0001193125-22-242403-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/15615/000119312522242403/d335392d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-242403
- JSON: https://secwatch.observer/filing/0001193125-22-242403.json
- Plain text: https://secwatch.observer/filing/0001193125-22-242403.txt

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