8-K

Custom Truck One Source, Inc. (CTOS)

8-K 2025-06-12 For: 2025-06-12
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Added on April 04, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): June 12, 2025

CUSTOM TRUCK ONE SOURCE, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware 001-38186 84-2531628
(State or other jurisdiction<br>of incorporation) (Commission<br>File Number) (IRS Employer<br>Identification No.)
7701 Independence Avenue<br><br>Kansas City, Missouri 64125
(Address of principal executive offices) (Zip Code)

(816) 241-4888

(Registrant’s telephone number, including area code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class Trading Symbol(s) Name of Each Exchange on Which Registered
Common Stock, $0.0001 par value CTOS New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07. Submission of Matters to a Vote of Security Holders.

On June 12, 2025, the Company held an annual meeting of stockholders to vote on the following proposals, as described in more detail in the Company's Proxy Statement:

Proposal One: To elect four Class C directors to serve until the 2028 annual meeting of stockholders and until their successors are duly elected and qualified. In accordance with the voting results listed below, each of the nominees was elected as a Class C director.

Nominee For Withheld Broker Non-Votes
Fred Ross 174,693,602 22,674,449 12,495,142
Georgia Nelson 175,482,751 21,885,300 12,495,142
Mary Jackson 175,493,807 21,874,244 12,495,142
Ryan McMonagle 175,984,814 21,383,237 12,495,142

Proposal Two: To ratify the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for fiscal year ending December 31, 2025. In accordance with the voting results listed below, the appointment of Ernst & Young LLP was ratified by stockholders.

For Against Abstain
209,310,495 65,654 487,044

Item 9.01. Financial Statements and Exhibits.

(d)    Exhibits.

Exhibit No. Description
104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: June 12, 2025 Custom Truck One Source, Inc.
/s/ Christopher J. Eperjesy
Christopher J. Eperjesy<br>Chief Financial Officer