Ryan McMonagle - 01 Apr 2022 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role: President, COO
Signature: By: /s/ Adam Haubenreich, Attorney-in-fact
Issuer symbol: CTOS
Transactions as of: 01 Apr 2022
Net transactions value: -$200,927
Form type: 4
Filing time: 05 Apr 2022, 20:07:04 UTC
Previous filing: 18 Aug 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	+81,250	+40%	$0.000000	286,250	01 Apr 2022	Direct	F1
transaction	CTOS	Common Stock	Tax liability	$200,927	-24,092	-8.4%	$8.34	262,158	01 Apr 2022	Direct

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	-81,250	-25%	$0.000000	243,750	01 Apr 2022	Common Stock	81,250		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.