---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-136151"
form_type: "8-K"
ticker: "MTZ"
cik: "0000015615"
company_name: "MASTEC INC"
filed_at: "2023-05-05T23:59:59+00:00"
generated_at: "2026-06-15T16:43:22.226545+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# MasTec Q1 revenue $2.58B +32% YoY; GAAP loss $1.05/sh; backlog record $13.9B; FY adj. EPS guide $4.35-4.85

## Summary
- Q1 revenue $2.58B (+32% YoY); GAAP net loss $80.5M ($1.05/sh) vs loss $35M ($0.47/sh) in Q1 2022.
- Adjusted EBITDA $102.5M (4.0% margin); adjusted diluted loss $0.54/sh, $0.03 better than guidance.
- Record 18-month backlog $13.9B (+31% YoY, +7% sequentially) driven by non-Oil & Gas segments.
- FY2023 guidance: rev $13.0-13.2B, adj. EBITDA $1.10-1.15B, adj. EPS $4.35-4.85; Q2 guide: rev ~$3.0B, adj. EPS $0.86; S&P affirmed investment grade.

## SEC filing metadata
- accession: 0001193125-23-136151
- form_type: 8-K
- ticker: MTZ
- cik: 0000015615
- company_name: MASTEC INC
- filed_at: 2023-05-05T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/15615/000119312523136151/0001193125-23-136151-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/15615/000119312523136151/d494180d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-136151
- JSON: https://secwatch.observer/filing/0001193125-23-136151.json
- Plain text: https://secwatch.observer/filing/0001193125-23-136151.txt

## Key facts
- Earnings Releases
  MASTEC INC reported first quarter 2023 results: revenue $2.58 billion, net income net loss of $80.5 million, EPS $1.05 per diluted share.
  - Period: first quarter 2023
  - Revenue: $2.58 billion
  - Net income: net loss of $80.5 million
  - EPS: $1.05 per diluted share
  - Result: reported results
  source text: MasTec, Inc. (NYSE: MTZ) today announced 2023 first quarter financial results and updated its full year 2023 guidance range expectation. First quarter 2023 revenue was up 32.2% to $2.58 billion, compared to $1.95 billion for the first quarter of 2022. GAAP net loss was $80.5 million, or $1.05 per diluted share
  evidence_url: https://www.sec.gov/Archives/edgar/data/15615/000119312523136151/0001193125-23-136151-index.htm

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