# Axsome Therapeutics funding: rounds and investors > Axsome Therapeutics has raised $577M across 5 rounds since 2013. Investors include Blackstone Group and Hercules Capital. Every round with its source. Source: https://millionrounds.com/company/axsome-therapeutics (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Axsome Therapeutics* 5 rounds we have observed, with the 2 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. Pharma Funding summary Updated 26 Oct 2026 **$577M** raised across 5 rounds since 2013, from 5 sources **$1.2M** Debt **$2.0M** Debt **$1.3M** Debt **$2.5M** Venture **$570M** Debt - **Latest round:** Debt, $570M May 2025 - **Step-up i:** 231.7× - **Investors:** 2 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. 2013 2015 2017 2019 2021 2023 2025 **$1.2M** Debt **$2.0M** Debt **$1.3M** Debt **$570M** Debt - **First round:** Debt, $1.2M - **Biggest round:** $570M - **Usual gap between rounds:** 15 months ## The rounds - **May 2025** Debt **$570M** *2 new* [Blackstone Group](https://millionrounds.com/fund/blackstone-group) [Hercules Capital](https://millionrounds.com/fund/hercules-capital) Source recorded - **May 2015** Venture **$2.5M** No investor was named in the report. From a historical funding record SEC filing: $2.5M sold, first sale May 2015 - **Jan 2015** Debt **$1.3M** No investor was named in the report. From a historical funding record SEC filing: $1.3M sold, first sale Dec 2014 - **Sept 2014** Debt **$2.0M** No investor was named in the report. From a historical funding record SEC filing: $2.0M sold, first sale Sept 2014 - **Jul 2013** Debt **$1.2M** No investor was named in the report. Reported by sec.gov SEC filing: $1.2M sold, first sale Jun 2013 ## Founders and team From the SEC filings it signed: 1 on the team. - **Herriot Tabuteau** Executive Officer, Director i ## 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. **Debt** 2013 **Debt** 2014 **Debt** 2015 **Venture** 2015 **Debt** 2025 [Blackstone Group](https://millionrounds.com/fund/blackstone-group) [Hercules Capital](https://millionrounds.com/fund/hercules-capital) ## Everyone who backed them [Blackstone Group](https://millionrounds.com/fund/blackstone-group) Private equity **1** round [Hercules Capital](https://millionrounds.com/fund/hercules-capital) Venture debt **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=axsome-therapeutics). ## Quick answers about Axsome Therapeutics ### Who invested in Axsome Therapeutics? Axsome Therapeutics's investors include Blackstone Group and Hercules Capital. ### How much has Axsome Therapeutics raised? Axsome Therapeutics has raised $577M across 5 rounds since 2013. ### When did Axsome Therapeutics last raise? Axsome Therapeutics's most recent round was a Debt of $570M in May 2025. ### What was Axsome Therapeutics's biggest round? Its most recent round, $570M in May 2025, is also its largest on record. ### Who backed Axsome Therapeutics first? Axsome Therapeutics's first round on record, in May 2025, was backed by Blackstone Group and Hercules Capital. ### What stage is Axsome Therapeutics at? Axsome Therapeutics's latest named round is a Debt, in May 2025. ### Where is Axsome Therapeutics based? Axsome Therapeutics is based in the United States. ## Companies like Axsome Therapeutics In the same sector, and raised in the last eighteen months. [**Matchpoint Therapeutics** $220M · Oct 2026](https://millionrounds.com/company/matchpoint-therapeutics)[**Rx Bandz** Oct 2026](https://millionrounds.com/company/rx-bandz)[**Hera Biotech** $1.8M · Sept 2026](https://millionrounds.com/company/hera-biotech)[**GevRx Nutraceuticals** $300K · Sept 2026](https://millionrounds.com/company/gevrx-nutraceuticals)[**RegCell** $81M · Sept 2026](https://millionrounds.com/company/regcell)[**ClearSight Therapeutics** $307K · Sept 2026](https://millionrounds.com/company/clearsight-therapeutics) ## 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