Matthew Call - Mar 28, 2023 Form 4 Insider Report for iTeos Therapeutics, Inc. (ITOS)

Role: Chief Operating Officer
Signature: /s/ Adi Osovsky, as Attorney-in-Fact
Stock symbol: ITOS
Transactions as of: Mar 28, 2023
Transactions value $: $118,667
Form type: 4
Date filed: 3/29/2023, 08:00 PM
Previous filing: Mar 10, 2023
Next filing: Dec 7, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ITOS	Common Stock	Options Exercise	$119K	+40.2K	+74.95%	$2.95^*	93.9K	Mar 28, 2023	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	ITOS	Stock Option (right to buy)	Options Exercise	$0	-40.2K	-27.16%	$0.00	108K	Mar 28, 2023	Common Stock	40.2K	$2.95	Direct	F1

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

Explanation of Responses:

Id	Content
F1	One-fourth of the shares subject to the stock option vest on the one-year anniversary of the vesting commencement date. Thereafter, 1/48 of the shares subject to the stock option vest on a monthly basis following the one-year anniversary of the vesting commencement date, subject to the reporting person's continuous service relationship with the Issuer through each applicable vesting date.