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CompletedNYSE

Custom Truck One Source, Inc.CTOS

Class A CTOSCIK 0001709682

Cash in trust

$412M

$412,052,878

Trust per share

Redemption value

IPO

Aug 2017

$394M raised

Combination deadline

Not disclosed

Filings on record

579

Latest Aug 3, 2026

Business combination

Target
Not disclosed in an indexed filing
Announced
Apr 8, 2019
Closed
Aug 1, 2019

Overview

Custom Truck One Source, Inc. is a special purpose acquisition company incorporated in Delaware and registered with the SEC under CIK 0001709682. It completed its initial public offering in Aug 2017, raising $394M in gross proceeds and listing on NYSE. Class A shares trade under the ticker CTOS on NYSE. Business combination closed; the company trades under a new ticker.

News on Custom Truck One Source, Inc.

Last 90 days

Nothing in the last 90 days that names this vehicle. We attribute a story only when the release carries the ticker or the registered name, so an empty section means no press release or wire story matched — not that nothing was published. The filings below are the primary record either way.

SEC filing history

Free tier: filings older than 24 hours
  • 10-Q

    Quarterly report

    Accession 0001709682-26-000040

    Aug 3, 2026

    1mo ago

    Open filing
  • 8-K

    Regulation FD disclosure

    Items 2.02, 7.01, 9.01 · Accession 0001709682-26-000039

    Aug 3, 2026

    1mo ago

    Open filing
  • 8-K

    Submission of matters to a vote of security holders

    Items 5.07, 9.01 · Accession 0001709682-26-000034

    Jun 11, 2026

    3mo ago

    Open filing
  • ARS

    ARS

    Accession 0001709682-26-000032

    Apr 28, 2026

    4mo ago

    Open filing
  • DEFA14A

    Additional proxy soliciting material

    Accession 0001709682-26-000031

    Apr 28, 2026

    4mo ago

    Open filing
  • DEF 14A

    Definitive proxy statement

    Accession 0001709682-26-000030

    Apr 28, 2026

    4mo ago

    Open filing
  • 10-Q

    Quarterly report

    Accession 0001709682-26-000018

    Apr 27, 2026

    4mo ago

    Open filing
  • 8-K

    Regulation FD disclosure

    Items 2.02, 7.01, 9.01 · Accession 0001709682-26-000017

    Apr 27, 2026

    4mo ago

    Open filing
  • 144

    144 filing

    Accession 0001785100-26-000002

    Apr 10, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-040063

    Apr 3, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-040062

    Apr 3, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-040061

    Apr 3, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-040060

    Apr 3, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-040059

    Apr 3, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-040058

    Apr 3, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-039387

    Apr 2, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-039384

    Apr 2, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-039386

    Apr 2, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-039385

    Apr 2, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-039383

    Apr 2, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-034750

    Mar 26, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-034749

    Mar 26, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-034748

    Mar 26, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-034747

    Mar 26, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-034746

    Mar 26, 2026

    5mo ago

    Open filing
  • 4

    Statement of changes in beneficial ownership

    Accession 0001213900-26-034745

    Mar 26, 2026

    5mo ago

    Open filing
  • 8-K

    Regulation FD disclosure

    Items 7.01, 9.01 · Accession 0001709682-26-000010

    Mar 25, 2026

    5mo ago

    Open filing
  • 10-K

    Annual report

    Accession 0001709682-26-000008

    Mar 10, 2026

    6mo ago

    Open filing
  • 8-K

    Regulation FD disclosure

    Items 2.02, 7.01, 9.01 · Accession 0001709682-26-000006

    Mar 10, 2026

    6mo ago

    Open filing
  • 8-K

    Current report

    Item 5.02 · Accession 0001709682-25-000043

    Dec 23, 2025

    8mo ago

    Open filing

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Custom Truck One Source, Inc.: questions answered

What is Custom Truck One Source, Inc. (CTOS)?

Custom Truck One Source, Inc. is a special purpose acquisition company incorporated in Delaware and registered with the SEC under CIK 0001709682. It completed its initial public offering in Aug 2017, raising $394M in gross proceeds and listing on NYSE. Class A shares trade under the ticker CTOS on NYSE. Business combination closed; the company trades under a new ticker.

How much does Custom Truck One Source, Inc. hold in trust?

Approximately $412,052,878, as at the most recent filing on record. Trust balances move: shareholders redeem at extension votes and at the combination vote, and sponsors pay contributions in to extend. Treat the figure as a point-in-time disclosure, not a running balance.

When must Custom Truck One Source, Inc. complete a merger?

No combination deadline appears in the filings we have indexed. The date is stated in the charter and repeated in each quarterly report; where our parser could not establish it with confidence we leave it blank rather than infer one.

What happens if Custom Truck One Source, Inc. does not find a target in time?

The charter requires the vehicle to redeem 100% of the public shares and return the trust, pro rata, to public shareholders. That is the mechanism working as designed rather than a default. Founder shares and warrants are worthless in that outcome, which is why the sponsor's incentive is to get a deal done or to buy more time. Across the market, deadline lapsed without a deal; trust returned to public shareholders.

Can I redeem shares in Custom Truck One Source, Inc., and at what price?

Public shareholders may elect to redeem in connection with a combination vote and at each extension vote, at the pro-rata trust value on the relevant record date. Redemption is a right attached to the public shares only; warrants and rights carry no claim on the trust. The mechanics and the deadline for electing are set out in the proxy statement for the vote in question.

What tickers does Custom Truck One Source, Inc. trade under?

Class A shares trade as CTOS on NYSE. Units trade first and separate into their component securities roughly 52 days after the IPO; only the Class A shares carry the redemption right against the trust.

Is the trust value the same as the share price for Custom Truck One Source, Inc.?

No. Trust per share is a disclosed, contractual figure: what a redeeming holder receives. The market price is whatever the shares change hands at, which can sit above the trust when a deal is well received or below it when the market doubts one will close. We do not have a current quote for this vehicle, so no spread is shown.

Is Custom Truck One Source, Inc. tradeable, and where?

Yes. CTOS returned a live quote of $9.19 on NYSE. Quotes here are delayed and refreshed on a schedule rather than streamed, so treat the figure as indicative and confirm on your own venue. Units and warrants trade under their own symbols and are quoted separately.

Is Custom Truck One Source, Inc. a good investment?

That is not a question this site answers. Custom Truck One Source, Inc. is covered here as reference data: what the company filed, when it filed it, and what the numbers in those filings say. The Edge, FOMO and Potential scores on this page are derived measures with a published formula, not ratings of investment merit: they describe the setup, and every component is shown so you can take them apart. We publish no price targets and no recommendations, and nothing here should be read as advice. The figures are a starting point for your own work, and each one carries the accession number of the filing it came from.

Where does this Custom Truck One Source, Inc. data come from?

Filings Custom Truck One Source, Inc. submitted to the SEC under CIK 0001709682: the registration statement and final prospectus for the structure, quarterly and annual reports for the trust, current reports and proxy statements for deals, votes and extensions. Trust economics are taken from the registrant's own XBRL tags rather than parsed from prose, which is why they are exact. Every filing in the history above is listed with its accession number, which identifies the document uniquely on EDGAR; Pro accounts open it directly from the row.

Compiled by the SPACListing research desk

Last reconciled Sep 17, 2026

Every figure on this page is read from documents the registrants filed with the U.S. Securities and Exchange Commission, principally the IPO prospectus (Form 424B4), quarterly and annual reports, current reports and proxy statements, the registrant's own XBRL tags for trust economics. Nothing is sourced from press coverage, from the companies themselves, or from a third-party aggregator. Where a filing does not disclose something, the field is left blank rather than estimated.

Read the full methodology · What is in the dataset · Report a correction

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The context around this vehicle: who else the sponsor has launched, which banks priced it, and where it sits in the wider market.