Adam K. Simpson - Aug 1, 2023 Form 4 Insider Report for Icosavax, Inc. (ICVX)

Role: Chief Executive Officer, Director
Signature: /s/ Elizabeth Bekiroglu, Attorney-in-Fact
Stock symbol: ICVX
Transactions as of: Aug 1, 2023
Transactions value $: $2,520
Form type: 4
Date filed: 8/1/2023, 08:54 PM
Previous filing: Aug 1, 2023
Next filing: Dec 22, 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ICVX	Common Stock	Options Exercise	$2.52K	+3K	+1.23%	$0.84^*	247K	Aug 1, 2023	Direct
holding	ICVX	Common Stock						532K	Aug 1, 2023	By family trust
holding	ICVX	Common Stock						129K	Aug 1, 2023	By family trust
holding	ICVX	Common Stock						129K	Aug 1, 2023	By family trust

Showing 1 to 4 of 4 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	ICVX	Stock Option (Right to Buy)	Options Exercise	$0	-3K	-9.64%	$0.00	28.1K	Aug 1, 2023	Common Stock	3K	$0.84	Direct	F1

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

Explanation of Responses:

Id	Content
F1	25% of the shares subject to the option vested on 2/21/2021, and 1/48th of the shares subject to the option vest monthly thereafter.