UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40655 ICOSAVAX, INC. (Exact name of Registrant as specified in its charter) Delaware 82-3640549 (State or other jurisdiction of incorporation or organization) 1930 Boren Avenue, Suite 1000 Seattle, Washington 98101 (Address of principal executive offices) (Zip Code) (I.R.S. Employer Identification No.) For the ...