Icosavax, Inc. Contracts & Agreements

Employment Letter Agreement dated June 7, 2023 between Dr. Amin Khan and the Registrant (Filed With SEC on August 14, 2023)

Amendment No. 3 to Exclusive Patent License Agreement, dated May 24, 2023, between the Registrant and National Institute of Allergy and Infectious Diseases (Filed With SEC on August 14, 2023)

Amended and Restated Exclusive License Agreement, dated June 8, 2023, between the Registrant and the University of Washington (Filed With SEC on August 14, 2023)

Form of Securities Purchase Agreement (Filed With SEC on May 23, 2023)

Amendment No. 3 to Exclusive License Agreement, effective as of June 3, 2022, between University of Washington and the Registrant (Filed With SEC on August 15, 2022)

Icosavax, Inc. Annual Bonus Plan (Filed With SEC on May 16, 2022)

Description of Registered Securities (Filed With SEC on March 30, 2022)

Lease Agreement, dated December 15, 2021, by and between Boren Lofts Owner (DE) LLC (Filed With SEC on March 30, 2022)

Non-Exclusive License Agreement, dated September 16, 2021, by and between the University of Washington and the Registrant (Filed With SEC on March 30, 2022)

Employment Letter Agreement, dated August 9, 2021, by and between Elizabeth Bekiroglu and the Registrant (Filed With SEC on November 15, 2021)

Icosavax, Inc. 2021 Incentive Award Plan, form of stock option agreement thereunder, and form of restricted stock unit agreement thereunder (Filed With SEC on July 22, 2021)

Amended and Restated Employment Letter Agreement, dated July 22, 2021, by and between Thomas J. Russo and the Registrant (Filed With SEC on July 22, 2021)

Amended and Restated Employment Letter Agreement, dated July 22, 2021, by and between Charles Richardson, Ph.D. and the Registrant (Filed With SEC on July 22, 2021)

Amended and Restated Employment Letter Agreement, dated July 22, 2021, by and between Cassia Cearley, Ph.D. and the Registrant (Filed With SEC on July 22, 2021)

Amended and Restated Employment Letter Agreement, dated July 22, 2021, by and between Niranjan Kanesa-thasan, M.D. and the Registrant (Filed With SEC on July 22, 2021)

Amended and Restated Employment Letter Agreement, dated July 22, 2021, by and between Douglas Holtzman, Ph.D. and the Registrant (Filed With SEC on July 22, 2021)

Amended and Restated Employment Letter Agreement, dated July 22, 2021, by and between Adam Simpson and the Registrant (Filed With SEC on July 22, 2021)

Non-Employee Director Compensation Program (Filed With SEC on July 22, 2021)

Icosavax, Inc. 2021 Employee Stock Purchase Plan (Filed With SEC on July 22, 2021)

Specimen stock certificate evidencing the shares of common stock (Filed With SEC on July 22, 2021)

Form of Underwriting Agreement (Filed With SEC on July 22, 2021)

Icosavax, Inc. 2017 Equity Incentive Plan, as amended, and form of stock option agreement thereunder (Filed With SEC on July 7, 2021)

Amended and Restated Investors Rights Agreement, dated March 19, 2021, by and among the Registrant and certain of its stockholders (Filed With SEC on July 7, 2021)

Amended and Restated Letter Agreement, dated August 15, 2019, by and between Tadataka Yamada, M.D. and the Registrant (Filed With SEC on July 7, 2021)

Amended and Restated Employment Letter Agreement, dated May 11, 2020, by and between Adam Simpson and the Registrant, as amended (Filed With SEC on July 7, 2021)

Amended and Restated Employment Letter Agreement, dated August 15, 2019, by and between Douglas Holtzman, Ph.D. and the Registrant (Filed With SEC on July 7, 2021)

Amended and Restated Employment Letter Agreement, dated August 15, 2019, by and between Niranjan Kanesa-thasan, M.D. and the Registrant, as amended (Filed With SEC on July 7, 2021)

Amended and Restated Employment Letter Agreement, dated February 8, 2021, by and between Cassia Cearley, Ph.D. and the Registrant (Filed With SEC on July 7, 2021)

Amended and Restated Employment Letter Agreement, dated August 15, 2019, by and between Charles Richardson, Ph.D. and the Registrant (Filed With SEC on July 7, 2021)

Employment Letter Agreement, dated May 25, 2021, by and between Thomas J. Russo and the Registrant (Filed With SEC on July 7, 2021)

Form of Indemnification Agreement for Directors and Officers (Filed With SEC on July 7, 2021)

Exclusive License Agreement, dated June 29, 2018, between the Registrant and University of Washington, as amended (Filed With SEC on July 7, 2021)

License and Exclusive Option Agreement, dated July 2, 2020, between the Registrant and University of Washington, as amended (Filed With SEC on July 7, 2021)

Non-Exclusive Patent License Agreement, dated June 28, 2018, between the Registrant and National Institute of Allergy and Infectious Diseases, as amended (Filed With SEC on July 7, 2021)

Grant Agreement, dated September 24, 2020, between the Registrant and the Bill & Melinda Gates Foundation, as amended (Filed With SEC on July 7, 2021)

Global Access and Price Commitment Agreement, dated February 17, 2021, between the Registrant and the Bill & Melinda Gates Foundation (Filed With SEC on July 7, 2021)

Patent License Agreement, dated June 2, 2021, between the Registrant and the University of Texas at Austin (Filed With SEC on July 7, 2021)