Custom Truck One Source, Inc. — Director's Dealing 2023

Apr 4, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Custom Truck One Source, Inc. (CTOS)
CIK: 0001709682
Period of Report: 2023-03-31

Reporting Person: Jackson Mary M. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-03-31	Common Stock	M	14315	—	Acquired	14315	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-03-31	Restricted Stock Unit	$	M	14315	Disposed		Common Stock (14315)	Direct
2023-04-01	Restricted Stock Unit	$	A	18640	Acquired		Common Stock (18640)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F2: The restricted stock units vested in full on March 31, 2023.

F3: The restricted stock units will vest on March 31, 2024 and have no expiration date.