Company Analysis

Custom Truck One Source, Inc. (CTOS)

NYSE: CTOS · Services-Equipment Rental & Leasing, NEC · Kansas City, MO · filing with the SEC since 2017
Grade3.5
◀ Past 3.7● Present 3.7▶ Future 3.0

Filings

286 filings since 2017 beside 295 insider forms · Accelerated filer · read from EDGAR on Nov 13, 2026
Due nextAccelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Accelerated filers have 75 days after the fiscal year ends. by Mar 16, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 26 days after the quarter ended. The proxy statement was last filed Apr 29, 2026.

Filings a yearinsider forms included
97581166753774731
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 3 times in the last 36 months, the newest Dec 23, 2025.Listing warning from its exchange (8-K item 3.01): 1 time in the last 36 months, the newest Mar 15, 2024.SEC letters: 14 in the last 36 months, the newest Apr 3, 2025.
Insider forms 295

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Oct 26, 2026 10-Q Quarterly report Sep 30, 2026
Oct 26, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Aug 3, 2026 10-Q Quarterly report Jun 30, 2026
Aug 3, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Jun 11, 2026 8-K items 5.07, 9.01 Shareholder vote · Current report
Apr 29, 2026 ARS Annual report to shareholders Dec 31, 2025
Apr 29, 2026 DEFA14A Extra proxy material
Apr 29, 2026 DEF 14A Proxy statement Dec 31, 2025
Apr 27, 2026 10-Q Quarterly report Mar 31, 2026
Apr 27, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Mar 25, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Mar 10, 2026 10-K Annual report Dec 31, 2025
Mar 10, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Dec 23, 2025 8-K item 5.02 Officer or director change · Current report Dec 19, 2025
Oct 27, 2025 10-Q Quarterly report Sep 30, 2025
Oct 27, 2025 8-K items 2.02, 9.01 Results released · Current report
Oct 21, 2025 SCHEDULE 13D/A Activist holder update, amended
Jul 30, 2025 10-Q Quarterly report Jun 30, 2025
Jul 30, 2025 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Jun 12, 2025 8-K items 5.07, 9.01 Shareholder vote · Current report
Apr 30, 2025 10-Q Quarterly report Mar 31, 2025
Apr 30, 2025 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Apr 28, 2025 DEFA14A Extra proxy material
Apr 28, 2025 DEF 14A Proxy statement Dec 31, 2024
Apr 28, 2025 ARS Annual report to shareholders Dec 31, 2024
Apr 3, 2025 UPLOAD SEC comment letter
Mar 4, 2025 10-K Annual report Dec 31, 2024
Mar 4, 2025 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Feb 3, 2025 SCHEDULE 13D/A Activist holder update, amended
Feb 3, 2025 8-K item 8.01 Other event · Current report Jan 30, 2025
Feb 3, 2025 SCHEDULE 13D/A Activist holder update, amended
Dec 23, 2024 SCHEDULE 13D/A Activist holder update, amended
Dec 12, 2024 CORRESP Reply to the SEC
Dec 10, 2024 SC 13D/A Activist holder update, amended
Nov 26, 2024 UPLOAD SEC comment letter
Oct 30, 2024 10-Q Quarterly report Sep 30, 2024
Oct 30, 2024 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Sep 9, 2024 SC 13D/A Activist holder update, amended
Aug 20, 2024 8-K item 5.02 Officer or director change · Current report Aug 15, 2024
Aug 16, 2024 CORRESP Reply to the SEC
40 of 286 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton CTOS · research, not advice