Joe P. Ross - Feb 27, 2024 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role: President - Sales
Signature: By: /s/ Paul M. Jolas, Attorney-in-fact
Stock symbol: CTOS
Transactions as of: Feb 27, 2024
Transactions value $: $0
Form type: 4
Date filed: 3/26/2024, 04:15 PM
Previous filing: Jan 3, 2024
Next filing: Apr 3, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CTOS	Common Stock	Award	$0	+18.1K	+19.8%	$0.00	109K	Feb 27, 2024	Direct	F1
holding	CTOS	Common Stock						282K	Feb 27, 2024	By Joseph P. Ross Holding Company, LLC

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents an award of performance stock units originally granted to the reporting person on March 7, 2023. On February 27, 2024, the compensation committee of the Issuer's board of directors certified the performance level applicable to the performance stock units, resulting in the satisfaction of the performance vesting condition with respect to the shares reported herein. Such shares remain subject to a time-based vesting condition, which will be satisfied on December 31, 2024.

Content

Represents an award of performance stock units originally granted to the reporting person on March 7, 2023. On February 27, 2024, the compensation committee of the Issuer's board of directors certified the performance level applicable to the performance stock units, resulting in the satisfaction of the performance vesting condition with respect to the shares reported herein. Such shares remain subject to a time-based vesting condition, which will be satisfied on December 31, 2024.

Remarks:

Exhibit 24 - Power of Attorney.