# AN2 Therapeutics funding: rounds and investors > AN2 Therapeutics has raised $80M across 2 rounds since 2026. Investors include RA Capital Management, Janus Henderson Investors and Vivo Capital. Source: https://millionrounds.com/company/an2-therapeutics (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *AN2 Therapeutics* 2 rounds we have observed, with the 5 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 Raised 2 months ago Funding summary Updated 26 Oct 2026 **$80M** raised across 2 rounds since 2026, from 2 sources **$40M** Round **$40M** Grant - **Latest round:** Grant, $40M Sept 2026 - **Investors:** 5 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. 2027 **$40M** Round **$40M** Grant - **First round:** Round, $40M - **Biggest round:** $40M - **Between rounds:** 5 months ## The rounds - **Sept 2026** Grant **$40M** *5 new* [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [TCG](https://millionrounds.com/fund/tcg) [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) Source recorded - **Mar 2026** Round **$40M** No investor was named in the report. Filed with the SEC (Form D); no report of this raise yet SEC filing: $40M sold, first sale Mar 2026 ## Founders and team From AN2 Therapeutics's own website: 3 founders, 3 on the team. **Eric Easom** Co-founder, President, CEO, and Chair **Maggie FitzPatrick** Fitzpatrick & Co, Founder & CEO **Joseph S. Zakrzewski** Co-founder and Director - **Josh Eizen** Chief Legal and Operating Officer - **Lucy Day** Chief Financial Officer - **Vince Hernandez** Head of Research ## 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. **Round** 2026 **Grant** 2026 [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) [Vivo Capital](https://millionrounds.com/fund/vivo-capital) [TCG](https://millionrounds.com/fund/tcg) [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) ## Everyone who backed them [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) Private equity **1** round [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) Private equity **1** round [Vivo Capital](https://millionrounds.com/fund/vivo-capital) Private equity **1** round [TCG](https://millionrounds.com/fund/tcg) Private equity **1** round [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=an2-therapeutics). ## Also claim to have backed them These 2 firms list AN2 Therapeutics as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Adjuvant Capital](https://millionrounds.com/fund/adjuvant-capital) VC firm Per its own site [Flucas Ventures](https://millionrounds.com/fund/flucas-ventures) Angel network Per its own site ## Quick answers about AN2 Therapeutics ### Who invested in AN2 Therapeutics? AN2 Therapeutics's investors include RA Capital Management, Janus Henderson Investors, Vivo Capital, TCG and TCG Crossover. ### How much has AN2 Therapeutics raised? AN2 Therapeutics has raised $80M across 2 rounds since 2026. ### When did AN2 Therapeutics last raise? AN2 Therapeutics's most recent round was a Grant of $40M in Sept 2026. ### What was AN2 Therapeutics's biggest round? Its most recent round, $40M in Sept 2026, is also its largest on record. ### Who backed AN2 Therapeutics first? AN2 Therapeutics's first round on record, in Sept 2026, was backed by RA Capital Management, Janus Henderson Investors and Vivo Capital and 2 others. ### What stage is AN2 Therapeutics at? AN2 Therapeutics's latest named round is a Grant, in Sept 2026. ### Where is AN2 Therapeutics based? AN2 Therapeutics is based in the United States. ## Companies like AN2 Therapeutics 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)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio) ## 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