---
schema_version: "secwatch.filing_event.v1"
accession: "0001709682-25-000004"
form_type: "8-K"
ticker: "CTOS"
cik: "0001709682"
company_name: "Custom Truck One Source, Inc."
filed_at: "2025-03-04T23:59:59+00:00"
generated_at: "2026-05-25T14:32:13.553453+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# CTOS Q4 revenue $520.7M (+16.4% seq), full-year net loss $28.7M; guides 2025 revenue $1.97-2.06B

## Summary
- Q4 total revenue $520.7M (up 16.4% seq, flat YoY); Q4 net income $27.6M vs Q3 net loss $17.4M.
- Full-year 2024 revenue $1,802.3M (down 3.4% YoY); net loss $28.7M vs net income $50.7M in 2023.
- Adjusted EBITDA Q4 $102.0M (up 27.2% seq, down 13.8% YoY); full-year $339.7M (down 20.4%).
- 2025 guidance: revenue $1.97-2.06B, Adj EBITDA $370-390M, target levered FCF $50-100M and net leverage below 4x.
- Sale-leaseback of 8 properties for net cash $52.5M; gain $23.5M recorded in Q4.

## SEC filing metadata
- accession: 0001709682-25-000004
- form_type: 8-K
- ticker: CTOS
- cik: 0001709682
- company_name: Custom Truck One Source, Inc.
- filed_at: 2025-03-04T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1709682/000170968225000004/0001709682-25-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1709682/000170968225000004/ctos-20250304.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001709682-25-000004
- JSON: https://secwatch.observer/filing/0001709682-25-000004.json
- Plain text: https://secwatch.observer/filing/0001709682-25-000004.txt

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