Custom Truck One Source, Inc. — Director's Dealing 2024

Apr 3, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Custom Truck One Source, Inc. (CTOS)
CIK: 0001709682
Period of Report: 2024-04-01

Reporting Person: Rich Thomas R. (President - Rentals)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-04-01	Common Stock	M	100000	—	Acquired	242729	Direct
2024-04-01	Common Stock	F	44151	$5.88	Disposed	198578	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-04-01	Restricted Stock Unit	$	M	50000	Disposed		Common Stock (50000)	Direct
2024-04-01	Restricted Stock Unit	$	M	50000	Disposed		Common Stock (50000)	Direct

Footnotes

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

F2: Shares withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units.

F3: The restricted stock units vest in four equal annual installments beginning on April 1, 2022.

F4: The restricted stock units vest in four equal annual installments beginning on April 1, 2024.