Joe P. Ross - 01 Apr 2022 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role: President - Sales
Signature: By: /s/ Adam Haubenreich, Attorney-in-fact
Issuer symbol: CTOS
Transactions as of: 01 Apr 2022
Net transactions value: -$123,649
Form type: 4
Filing time: 05 Apr 2022, 20:12:49 UTC
Previous filing: 12 Jul 2021
Next filing: 04 Aug 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CTOS	Common Stock	Options Exercise	$0	+50,000	+3771%	$0.000000	51,326	01 Apr 2022	Direct	F1
transaction	CTOS	Common Stock	Tax liability	$123,649	-14,826	-29%	$8.34	36,500	01 Apr 2022	Direct
holding	CTOS	Common Stock						282,449	01 Apr 2022	By Joseph P. Ross Holding Company, LLC

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CTOS	Restricted Stock Unit	Options Exercise	$0	-50,000	-25%	$0.000000	150,000	01 Apr 2022	Common Stock	50,000		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
F2	The restricted stock units vest in four equal annual installments beginning on April 1, 2022.