# Fesarius Therapeutics funding: rounds and investors > Fesarius Therapeutics has raised $21M across 2 rounds since 2023. Investors include National Institutes of Health, New York Ventures and Jefferson Life... Source: https://millionrounds.com/company/fesarius-therapeutics (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Fesarius Therapeutics* 2 rounds we have observed, with the 7 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 5 months ago Funding summary Updated 26 Oct 2026 **$21M** raised across 2 rounds since 2023, from 3 sources **$800K** Grant **$20M** Series A - **Latest round:** Series A, $20M Jun 2026 - **Led by:** Jefferson Life Sciences - **Step-up i:** 25× - **Investors:** 7 (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. 2024 2025 2026 **$800K** Grant **$20M** Series A - **First round:** Grant, $800K - **Biggest round:** $20M - **Between rounds:** 2.8 years ## The rounds - **Jun 2026** Series A **$20M** *5 new* *2 returning* [Jefferson Life Sciences](https://millionrounds.com/fund/jefferson-life-sciences) Lead [National Institutes of Health](https://millionrounds.com/fund/national-institutes-of-health) [Surge](https://millionrounds.com/fund/peak-xv-partners) [New York Ventures](https://millionrounds.com/fund/new-york-ventures) [Johnson & Johnson Robotics and Digital Solutions](https://millionrounds.com/fund/johnson-and-johnson-robotics-and-digital-solutions) [American Society of Plastic Surgeons](https://millionrounds.com/fund/american-society-of-plastic-surgeons) [NY Ventures](https://millionrounds.com/fund/ny-ventures) Reported by Jefferson Life Sciences and 1 other - **Aug 2023** Grant **$800K** *2 new* [National Institutes of Health](https://millionrounds.com/fund/national-institutes-of-health) [New York Ventures](https://millionrounds.com/fund/new-york-ventures) Source recorded ## Founders and team From Fesarius Therapeutics's own website: 1 founder, 4 on the team. **Hannah Nguyen** Founder & CEO - **Tom Roueche** President & CEO, Director - **Tim O'Brien** VP Sales & Marketing - **David W. Anderson** Director - **William G. Mavity** Director Advisers *Dr. Jason Spector* ## 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. **Grant** 2023 **Series A** 2026 [National Institutes of Health](https://millionrounds.com/fund/national-institutes-of-health) [New York Ventures](https://millionrounds.com/fund/new-york-ventures) [Jefferson Life Sciences](https://millionrounds.com/fund/jefferson-life-sciences) L [Surge](https://millionrounds.com/fund/peak-xv-partners) [Johnson & Johnson Robotics and Digital Solutions](https://millionrounds.com/fund/johnson-and-johnson-robotics-and-digital-solutions) [American Society of Plastic Surgeons](https://millionrounds.com/fund/american-society-of-plastic-surgeons) [NY Ventures](https://millionrounds.com/fund/ny-ventures) ## Everyone who backed them [National Institutes of Health](https://millionrounds.com/fund/national-institutes-of-health) Government **2** rounds [New York Ventures](https://millionrounds.com/fund/new-york-ventures) VC firm **2** rounds [Jefferson Life Sciences](https://millionrounds.com/fund/jefferson-life-sciences) Family office **1** round, led 1 [Surge](https://millionrounds.com/fund/peak-xv-partners) Accelerator **1** round [Johnson & Johnson Robotics and Digital Solutions](https://millionrounds.com/fund/johnson-and-johnson-robotics-and-digital-solutions) Corporate VC **1** round [American Society of Plastic Surgeons](https://millionrounds.com/fund/american-society-of-plastic-surgeons) VC firm **1** round [NY Ventures](https://millionrounds.com/fund/ny-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=fesarius-therapeutics). ## Quick answers about Fesarius Therapeutics ### Who invested in Fesarius Therapeutics? Fesarius Therapeutics's investors include National Institutes of Health, New York Ventures, Jefferson Life Sciences, Surge and Johnson & Johnson Robotics and Digital Solutions, and 2 more on record. Jefferson Life Sciences led its latest round. ### How much has Fesarius Therapeutics raised? Fesarius Therapeutics has raised $21M across 2 rounds since 2023. ### When did Fesarius Therapeutics last raise? Fesarius Therapeutics's most recent round was a Series A of $20M in Jun 2026, led by Jefferson Life Sciences. ### What was Fesarius Therapeutics's biggest round? Its most recent round, $20M in Jun 2026, is also its largest on record. ### Who backed Fesarius Therapeutics first? Fesarius Therapeutics's first round on record, in Aug 2023, was backed by National Institutes of Health and New York Ventures. ### What stage is Fesarius Therapeutics at? Fesarius Therapeutics's latest named round is a Series A, in Jun 2026. ### Where is Fesarius Therapeutics based? Fesarius Therapeutics is based in the United States. ### Who led Fesarius Therapeutics's rounds? Jefferson Life Sciences led the Series A in 2026. ## Companies like Fesarius Therapeutics In the same sector, and raised in the last eighteen months. 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