---
schema_version: "secwatch.filing_event.v1"
accession: "0001709682-26-000006"
form_type: "8-K"
ticker: "CTOS"
cik: "0001709682"
company_name: "Custom Truck One Source, Inc."
filed_at: "2026-03-10T23:59:59+00:00"
generated_at: "2026-05-15T16:45:58.354729+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# CTOS reports record Q4 revenue $528M, full-year Adj EBITDA $384M, issues strong FY2026 guidance

## Summary
- Q4 revenue $528.2M (record), up 1.4% YoY; full-year revenue $1,944M, up 7.9%.
- Q4 net income $20.9M; full-year net loss $31.1M; Adjusted EBITDA Q4 $120.7M (+18.4%), full-year $383.6M (+12.9%).
- Fleet utilization 83.6% (highest in ~3 years); total OEC $1.64B record; inventory down >$100M in Q4.
- FY2026 guidance: revenue $2,005-2,120M (3-9% growth), Adj EBITDA $410-435M (7-13% growth).
- Net leverage 4.3x; targeting below 4x by end-2026, below 3x in 2027; new 2-segment reporting from Q1 2026.

## SEC filing metadata
- accession: 0001709682-26-000006
- form_type: 8-K
- ticker: CTOS
- cik: 0001709682
- company_name: Custom Truck One Source, Inc.
- filed_at: 2026-03-10T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1709682/000170968226000006/0001709682-26-000006-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1709682/000170968226000006/ctos-20260310.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001709682-26-000006
- JSON: https://secwatch.observer/filing/0001709682-26-000006.json
- Plain text: https://secwatch.observer/filing/0001709682-26-000006.txt

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