# Custom Truck One Source, Inc.: Form DEF 14A, filed Apr 29, 2026

- Company: [Custom Truck One Source, Inc.](/companies/ctos.md) (CIK 1709682)
- Form: DEF 14A
- Filed: 2026-04-29
- Accepted by EDGAR: Apr 28, 2026, 19:05 ET
- Period: 2025-12-31
- Accession: 0001709682-26-000030
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/1709682/000170968226000030/ctos-20260428.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1709682/000170968226000030/

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1709682/000170968226000030/ctos-20260428.htm

Filed Apr 29, 2026.
Source: SEC EDGAR, the filing index for accession 0001709682-26-000030. Last ingested by Listed: Oct 26, 2026, 16:16 ET. No prices; not investment advice.