# Icosavax funding: rounds and investors > Icosavax has raised $119M across 2 rounds since 2019. Investors include Adams Street Partners, Qiming Venture Partners USA and RA Capital Management. Source: https://millionrounds.com/company/icosavax (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Icosavax* 2 rounds we have observed, with the 8 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Biotech Healthcare Funding summary Updated 26 Oct 2026 **$119M** raised across 2 rounds since 2019, from 2 sources **$51M** Series A **$68M** Round - **Latest round:** Round, $68M May 2023 - **Step-up i:** 1.3× - **Investors:** 8 (1 led) See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2020 2021 2022 2023 **$51M** Series A **$68M** Round - **First round:** Series A, $51M - **Biggest round:** $68M - **Between rounds:** 3.6 years ## The rounds - **May 2023** Round **$68M** *4 new* *1 returning* [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [Sanofi](https://millionrounds.com/fund/sanofi) Source recorded - **Oct 2019** Series A **$51M** *4 new* [Qiming Venture Partners USA](https://millionrounds.com/fund/qiming-venture-partners-usa) Lead [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) [Nano Dimension](https://millionrounds.com/fund/nanodimension) [Sanofi Ventures](https://millionrounds.com/fund/sanofi-ventures) Reported by FinSMEs SEC filing: $30M sold, first sale Aug 2019 ## Founders and team From the SEC filings it signed: 6 on the team. - **Adam K. Simpson** President and Chief Executive Officer i - **Charles A. Richardson** Senior Vice President, Technical Operations i - **Cassia A. Cearley** Treasurer, Chief Business Officer i - **Douglas A. Holtzman** Chief Scientific Officer and Secretary i - **Niranjan A. Kanesa-thasan** Chief Medical Officer i - **Tadataka Yamada** Chairman of the Board i On the board, as filed i *Eric A. Moessinger* *Jason A. Hafler* *Mark A. McDade* *Peter A. Kolchinsky* *Terry A. Gould* ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series A** 2019 **Round** 2023 [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) [Qiming Venture Partners USA](https://millionrounds.com/fund/qiming-venture-partners-usa) L [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [Sanofi](https://millionrounds.com/fund/sanofi) [Nano Dimension](https://millionrounds.com/fund/nanodimension) [Sanofi Ventures](https://millionrounds.com/fund/sanofi-ventures) ## Everyone who backed them [Adams Street Partners](https://millionrounds.com/fund/adams-street-partners) VC firm **2** rounds [Qiming Venture Partners USA](https://millionrounds.com/fund/qiming-venture-partners-usa) VC firm **1** round, led 1 [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Private equity **1** round [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) Private equity **1** round [Vivo Capital](https://millionrounds.com/fund/vivo-capital) Private equity **1** round [Sanofi](https://millionrounds.com/fund/sanofi) Investment firm **1** round [Nano Dimension](https://millionrounds.com/fund/nanodimension) Growth equity **1** round [Sanofi Ventures](https://millionrounds.com/fund/sanofi-ventures) Corporate VC **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=icosavax). ## Quick answers about Icosavax ### Who invested in Icosavax? Icosavax's investors include Adams Street Partners, Qiming Venture Partners USA, RA Capital Management, Cormorant Asset Management and Vivo Capital, and 3 more on record. ### How much has Icosavax raised? Icosavax has raised $119M across 2 rounds since 2019. ### When did Icosavax last raise? Icosavax's most recent round was an Undisclosed round of $68M in May 2023. ### What was Icosavax's biggest round? Its most recent round, $68M in May 2023, is also its largest on record. ### Who backed Icosavax first? Icosavax's first round on record, in Oct 2019, was backed by Qiming Venture Partners USA, Adams Street Partners and Nano Dimension and 1 others. ### What stage is Icosavax at? Icosavax's latest named round is an Undisclosed round, in May 2023. ### Where is Icosavax based? Icosavax is based in the United States. ### Who led Icosavax's rounds? Qiming Venture Partners USA led the Series A in 2019. ## Companies like Icosavax In the same sector, and raised in the last eighteen months. [**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app