Amendment: SEC Form SCHEDULE 13D/A filed by Custom Truck One Source Inc.
$CTOS
Diversified Commercial Services
Consumer Discretionary
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 1)
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Custom Truck One Source, Inc. (Name of Issuer) |
Common Stock (Title of Class of Securities) |
23204X103 (CUSIP Number) |
Mark Ein 2200 Wilson Blvd, Suite 102 #447, Arlington, VA, 22201 202-654-7001 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
10/17/2025 (Date of Event Which Requires Filing of This Statement) |
If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.
The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the
Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).
SCHEDULE 13D
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| CUSIP No. | 23204X103 |
| 1 |
Name of reporting person
Capitol Acquisition Management IV LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC, OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
0.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
0 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
SCHEDULE 13D
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| CUSIP No. | 23204X103 |
| 1 |
Name of reporting person
Capitol Acquisition Founder IV LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC, OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
0.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
0 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
SCHEDULE 13D
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| CUSIP No. | 23204X103 |
| 1 |
Name of reporting person
Mark Ein | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
5,159,319.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
2.3 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
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| CUSIP No. | 23204X103 |
| 1 |
Name of reporting person
Dyson Dryden | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
| ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
0.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
0 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
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| Item 1. | Security and Issuer | |
| (a) | Title of Class of Securities:
Common Stock | |
| (b) | Name of Issuer:
Custom Truck One Source, Inc. | |
| (c) | Address of Issuer's Principal Executive Offices:
7701 Independence Avenue, Kansas City,
MISSOURI
, 64125. | |
Item 1 Comment:
This Amendment No. 1 to Schedule 13D (this "Amendment No. 1") amends and supplements the statement on Schedule 13D filed with the United States Securities and Exchange Commission on April 14, 2021 (the "Schedule 13D"), relating to the common stock, par value $0.0001 per share (the "Common Stock"), of Custom Truck One Source, Inc., a Delaware corporation (the "Issuer"), whose principal executive office is located at 7701 Independence Ave., Kansas City, MO 64125. Capitalized terms used herein without definition shall have the meaning set forth in the Schedule 13D. | ||
| Item 4. | Purpose of Transaction | |
Item 4 of the Schedule 13D is hereby amended and supplemented with the following:
Distribution In-Kind
On October 17, 2025, Management IV distributed 3,670,279 shares of Common Stock to its members without consideration on a pro rata basis. As part of this distribution, Mr. Ein acquired 3,553,612 shares of Common Stock. | ||
| Item 5. | Interest in Securities of the Issuer | |
| (a) | Item 5 of the Schedule 13D is hereby amended and restated in its entirety as follows:
The beneficial ownership set forth herein is based on 226,559,586 shares of Common Stock outstanding as of July 28, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on July 30, 2025. | |
| (b) | Mr. Ein is the record holder of 5,139,319 shares of Common Stock and options to purchase 20,000 shares of Common Stock that are currently exercisable. | |
| (c) | Other than as described in Item 4, the Reporting Persons have not effected any other transactions in Common Stock during the past 60 days. | |
| (d) | None. | |
| (e) | The Reporting Persons have ceased to be the beneficial owners of more than five percent of the outstanding Common Stock. | |
| SIGNATURE | |
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
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