Paul M. Jolas - Apr 1, 2025 Form 4 Insider Report for Custom Truck One Source, Inc. (CTOS)

Role: EVP, Gen. Counsel & Secretary
Signature: By: /s/ Paul M. Jolas
Stock symbol: CTOS
Transactions as of: Apr 1, 2025
Transactions value $: -$58,632
Form type: 4
Date filed: 4/3/2025, 04:15 PM
Previous filing: Jan 3, 2025
Next filing: Apr 30, 2025
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	+33.8K	+242.3%	$0.00	47.7K	Apr 1, 2025	Direct	F1
transaction	CTOS	Common Stock	Tax liability	-$58.6K	-14K	-29.28%	$4.20	33.7K	Apr 1, 2025	Direct	F2

Showing 1 to 2 of 2 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	Restricted Stock Unit	Options Exercise	$0	-16.9K	-33.33%	$0.00	33.8K	Apr 1, 2025	Common Stock	16.9K		Direct	F1, F3
transaction	CTOS	Restricted Stock Unit	Options Exercise	$0	-16.9K	-25%	$0.00	50.6K	Apr 1, 2025	Common Stock	16.9K		Direct	F1, F4

* 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 restricted stock units.
F3	The restricted stock units vest in four equal annual installments beginning on April 1, 2024.
F4	The restricted stock units vest in four equal annual installments beginning on April 1, 2025.