Custom Truck One Source SEC Filings
NYSE: CTOSConsumer DiscretionaryDiversified Commercial ServicesUSD
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At close: Oct 9, 4:00 PM ET · Delayed 15 min
Custom Truck One Source filing overview
This page lists 60 recent SEC filings by Custom Truck One Source (CTOS), including 37 4, 12 8-K, 5 10-Q, 2 DEF 14A. The latest annual report (10-K) was filed on Mar 10, 2026 for the period ending Dec 31, 2025. The most recent quarterly report (10-Q) was filed on Aug 3, 2026.
The latest current report (8-K), used to disclose material events such as earnings releases and executive changes, was filed on Aug 3, 2026. Form 10-K is the audited annual report, 10-Q the quarterly report, 8-K covers material events, and Form 4 reports insider transactions. All documents link directly to SEC EDGAR.
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CTOS SEC filings
| Filed | Form | Description | Document |
|---|---|---|---|
| Aug 3, 2026 | 8-K | Results of Operations and Financial Condition; Regulation FD Disclosure | View on EDGAR |
| Aug 3, 2026 | 10-Q | Quarterly report | View on EDGAR |
| Jun 11, 2026 | 8-K | Submission of Matters to a Vote of Security Holders | View on EDGAR |
| Apr 29, 2026 | DEF 14A | Definitive proxy statement | View on EDGAR |
| Apr 27, 2026 | 8-K | Results of Operations and Financial Condition; Regulation FD Disclosure | View on EDGAR |
| Apr 27, 2026 | 10-Q | Quarterly report | View on EDGAR |
| Apr 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 26, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 26, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 26, 2026 | 4 | OWNERSHIP DOCUMENT | View on EDGAR |
| Mar 26, 2026 | 4 | OWNERSHIP DOCUMENT | View on EDGAR |
| Mar 26, 2026 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 26, 2026 | 4 | OWNERSHIP DOCUMENT | View on EDGAR |
| Mar 25, 2026 | 8-K | Regulation FD Disclosure | View on EDGAR |
| Mar 10, 2026 | 8-K | Results of Operations and Financial Condition; Regulation FD Disclosure | View on EDGAR |
| Mar 10, 2026 | 10-K | Annual report | View on EDGAR |
| Dec 23, 2025 | 8-K | Departure or Appointment of Directors or Officers; Compensatory Arrangements | View on EDGAR |
| Oct 27, 2025 | 8-K | Results of Operations and Financial Condition | View on EDGAR |
| Oct 27, 2025 | 10-Q | Quarterly report | View on EDGAR |
| Oct 21, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Oct 21, 2025 | SCHEDULE 13D/A | Beneficial ownership report (activist) (amendment) | View on EDGAR |
| Jul 30, 2025 | 8-K | Results of Operations and Financial Condition; Regulation FD Disclosure | View on EDGAR |
| Jul 30, 2025 | 10-Q | Quarterly report | View on EDGAR |
| Jun 12, 2025 | 8-K | Submission of Matters to a Vote of Security Holders | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 30, 2025 | 8-K | Results of Operations and Financial Condition; Regulation FD Disclosure | View on EDGAR |
| Apr 30, 2025 | 10-Q | Quarterly report | View on EDGAR |
| Apr 28, 2025 | DEF 14A | Definitive proxy statement | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 3, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Apr 2, 2025 | 4 | Statement of changes in beneficial ownership | View on EDGAR |
| Mar 4, 2025 | 8-K | Results of Operations and Financial Condition; Regulation FD Disclosure | View on EDGAR |
| Mar 4, 2025 | 10-K | Annual report | View on EDGAR |
| Feb 3, 2025 | 8-K | Other Events | View on EDGAR |
| Feb 3, 2025 | SCHEDULE 13D/A | Beneficial ownership report (activist) (amendment) | View on EDGAR |