0001950047-23-005964.txt : 20231213 0001950047-23-005964.hdr.sgml : 20231213 20231213162645 ACCESSION NUMBER: 0001950047-23-005964 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231213 DATE AS OF CHANGE: 20231213 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Icosavax, Inc. CENTRAL INDEX KEY: 0001786255 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-40655 FILM NUMBER: 231484314 BUSINESS ADDRESS: STREET 1: 1930 BOREN AVE., SUITE 1000 CITY: SEATTLE STATE: WA ZIP: 98101 BUSINESS PHONE: (206) 737-0085 MAIL ADDRESS: STREET 1: 1930 BOREN AVE., SUITE 1000 CITY: SEATTLE STATE: WA ZIP: 98101 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Cearley Cassia CENTRAL INDEX KEY: 0001874017 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 1616 EASTLAKE AVENUE E. STREET 2: SUITE 208 CITY: SEATTLE STATE: WA ZIP: 98102 144 1 primary_doc.xml 144 0001874017 XXXXXXXX LIVE 0001786255 ICOSAVAX INC 001-40655 1930 BOREN AVE., SUITE 1000 Seattle WA 98101 2067370085 CASSIA CEARLEY Officer COMMON Morgan Stanley Smith Barney LLC Executive Financial Services

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35000 548800.00 50090341 12/13/2023 NASDAQ Common 02/18/2021 Previously Exercised Stock Options Issuer N 10143 02/18/2021 Cash Common 11/15/2021 Previously Exercised Stock Options Issuer N 22598 11/15/2021 Cash Common 03/18/2022 Previously Exercised Stock Options Issuer N 2259 03/18/2022 Cash Y 12/13/2023 02/03/2023 /s/ Cassia Cearley