Fredrick M. Ross Jr. - 01 Apr 2023 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role: Chief Executive Officer, Director
Signature: By: /s/ Adam Haubenreich, Attorney-in-fact
Issuer symbol: CTOS
Transactions as of: 01 Apr 2023
Net transactions value: -$263,262
Form type: 4
Filing time: 04 Apr 2023, 20:20:55 UTC
Previous filing: 09 Mar 2023
Next filing: 03 Jan 2024
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	+87,500	+103%	$0.000000	172,822	01 Apr 2023	Direct	F1
transaction	CTOS	Common Stock	Tax liability	$263,262	-38,772	-22%	$6.79	134,050	01 Apr 2023	Direct	F2
holding	CTOS	Common Stock						2,000,000	01 Apr 2023	By Frederick M. Ross, Jr. 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	-87,500	-33%	$0.000000	175,000	01 Apr 2023	Common Stock	87,500		Direct	F1, F3

* 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	Shares withheld to satisfy tax obligations arising out of vesting of the Reporting Person's performance stock units.
F3	The restricted stock units vest in four equal annual installments beginning on April 1, 2022.