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

Role: Chief Operating Officer
Signature: /s/ Adi Osovsky, as Attorney-in-Fact
Issuer symbol: ITOS
Transactions as of: 28 Mar 2023
Net transactions value: +$118,667
Form type: 4
Filing time: 29 Mar 2023, 20:00:11 UTC
Previous filing: 10 Mar 2023
Next filing: 07 Dec 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ITOS	Common Stock	Options Exercise	$118,667	+40,226	+75%	$2.95^*	93,898	28 Mar 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	-40,226	-27%	$0.000000	107,864	28 Mar 2023	Common Stock	40,226	$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.