Fredrick M. Ross Jr. - Dec 31, 2024 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role: Director
Signature: /s/ Paul M. Jolas, Attorney-in-fact
Stock symbol: CTOS
Transactions as of: Dec 31, 2024
Transactions value $: -$137,210
Form type: 4
Date filed: 1/3/2025, 05:34 PM
Previous filing: Apr 3, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CTOS	Common Stock	Options Exercise	$0	+31.6K	+11.3%	$0.00	311K	Dec 31, 2024	Direct	F1
transaction	CTOS	Common Stock	Tax liability	-$137K	-28.5K	-9.17%	$4.81	283K	Dec 31, 2024	Direct	F2
holding	CTOS	Common Stock						2M	Dec 31, 2024	By Frederick M. Ross, Jr. Holding Company, LLC

Showing 1 to 3 of 3 entries

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	Performance Stock Unit	Options Exercise	$0	-15.8K	-11.4%	$0.00	123K	Dec 31, 2024	Common Stock	15.8K		Direct	F1, F3
transaction	CTOS	Performance Stock Unit	Options Exercise	$0	-15.8K	-11.4%	$0.00	123K	Dec 31, 2024	Common Stock	15.8K		Direct	F1, F3

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

Explanation of Responses:

Id	Content
F1	Each performance 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	Each performance stock unit represents a contingent right to receive one share of the Issuer's common stock. The performance stock units will vest based on the attainment of certain performance conditions.