# Rhythm Pharmaceuticals funding: rounds and investors > Rhythm Pharmaceuticals has raised $311M across 10 rounds since 2010. Investors include New Enterprise Associates, MPM Capital and Third Rock Ventures. Source: https://millionrounds.com/company/rhythm-pharmaceuticals (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Rhythm Pharmaceuticals* 10 rounds we have observed, with the 9 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 Funding summary Updated 26 Oct 2026 **$311M** raised across 10 rounds since 2010, from 10 sources **$21M** Series A **$19M** Series A **$9.5M** Venture **$25M** Series B **$8.0M** Series B **$11M** Series B **$1.4M** Grant **$40M** Series A **$1.0M** Grant **$175M** Round - **Latest round:** Round, $175M Jul 2025 - **Step-up i:** 175× - **Investors:** 9 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. 2010 2012 2014 2016 2018 2020 2022 2024 **$21M** Series A **$19M** Series A **$9.5M** Venture **$25M** Series B **$40M** Series A **$1.0M** Grant **$175M** Round - **First round:** Series A, $21M - **Biggest round:** $175M - **Usual gap between rounds:** 8 months ## The rounds - **Jul 2025** Round **$175M** *2 returning* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [OrbiMed](https://millionrounds.com/fund/orbimed) Source recorded - **Sept 2015** Grant **$1.0M** No investor was named in the report. From a historical funding record SEC filing: $40M sold, first sale Aug 2015 - **Aug 2015** Series A **$40M** *3 new* *5 returning* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [OrbiMed](https://millionrounds.com/fund/orbimed) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Deerfield](https://millionrounds.com/fund/deerfield) [MPM Capital](https://millionrounds.com/fund/mpm-bioimpact) [Third Rock Ventures](https://millionrounds.com/fund/third-rock-ventures) [Pfizer](https://millionrounds.com/fund/pfizer) [Ipsen](https://millionrounds.com/fund/ipsen) From a historical funding record SEC filing: $40M sold, first sale Aug 2015 - **Sept 2013** Grant **$1.4M** *1 new* [Michael J. Fox Foundation](https://millionrounds.com/fund/michael-j-fox-fou) Reported by bizjournals.com - **Jul 2013** Series B **$11M** No investor was named in the report. Reported by biospace.com - **Nov 2012** Series B **$8.0M** *1 new* *4 returning* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [MPM Capital](https://millionrounds.com/fund/mpm-bioimpact) [Third Rock Ventures](https://millionrounds.com/fund/third-rock-ventures) [Pfizer](https://millionrounds.com/fund/pfizer) [Ipsen](https://millionrounds.com/fund/ipsen) Reported by pehub.com SEC filing: $23M sold, first sale May 2012 - **Jun 2012** Series B **$25M** *2 new* *2 returning* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [MPM Capital](https://millionrounds.com/fund/mpm-bioimpact) [Third Rock Ventures](https://millionrounds.com/fund/third-rock-ventures) [Ipsen](https://millionrounds.com/fund/ipsen) Reported by rhythmtx.com SEC filing: $9.5M sold, first sale May 2012 - **Jun 2012** Venture **$9.5M** No investor was named in the report. Reported by masshightech.com SEC filing: $9.5M sold, first sale May 2012 - **Sept 2010** Series A **$19M** No investor was named in the report. Reported by genengnews.com SEC filing: $18M sold, first sale Mar 2010 - **Mar 2010** Series A **$21M** *2 new* [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [MPM Capital](https://millionrounds.com/fund/mpm-bioimpact) Reported by fiercebiotech.com SEC filing: $10M sold, first sale Mar 2010 ## Founders and team From Rhythm Pharmaceuticals's own website and the SEC filings it signed: 8 on the team. - **Keith Gottesdiener** Mr. Gottesdiener is the Chief Executive Officer of the Issuer. i - **Jennifer Lee** Executive Vice President, Head of North America - **Jim Flaherty** Senior Vice President and General Counsel - **Yann Mazabraud** Executive Vice President, Head of International - **Bart T. Henderson** Mr. Henderson is the President and Treasurer of the Issuer. i - **Alicia Fiscus** Chief Regulatory Officer - **Hunter Smith** Chief Financial Officer - **Joe Shulman** Chief Technical Officer On the board, as filed i *Christophe Jean* *David J. McGirr* *David P. Meeker* *Edward T. Mathers* *Jonathan T. Silverstein* *Neil Exter* *Todd T. Foley* ## 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. **Venture** 2012 **Series B** 2012 **Series B** 2012 **Series B** 2013 **Grant** 2013 **Series A** 2015 **Grant** 2015 **Round** 2025 [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) [MPM Capital](https://millionrounds.com/fund/mpm-bioimpact) [Third Rock Ventures](https://millionrounds.com/fund/third-rock-ventures) [Ipsen](https://millionrounds.com/fund/ipsen) [OrbiMed](https://millionrounds.com/fund/orbimed) [Pfizer](https://millionrounds.com/fund/pfizer) [Wellington Management](https://millionrounds.com/fund/wellington-management) [Deerfield](https://millionrounds.com/fund/deerfield) [Michael J. Fox Foundation](https://millionrounds.com/fund/michael-j-fox-fou) ## Everyone who backed them [New Enterprise Associates](https://millionrounds.com/fund/new-enterprise-associates) VC firm **5** rounds [MPM Capital](https://millionrounds.com/fund/mpm-bioimpact) Private equity **4** rounds [Third Rock Ventures](https://millionrounds.com/fund/third-rock-ventures) VC firm **3** rounds [Ipsen](https://millionrounds.com/fund/ipsen) Corporate VC **3** rounds [OrbiMed](https://millionrounds.com/fund/orbimed) Private equity **2** rounds [Pfizer](https://millionrounds.com/fund/pfizer) Corporate VC **2** rounds [Wellington Management](https://millionrounds.com/fund/wellington-management) VC firm **1** round [Deerfield](https://millionrounds.com/fund/deerfield) VC firm **1** round [Michael J. Fox Foundation](https://millionrounds.com/fund/michael-j-fox-fou) Accelerator **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=rhythm-pharmaceuticals). ## Quick answers about Rhythm Pharmaceuticals ### Who invested in Rhythm Pharmaceuticals? Rhythm Pharmaceuticals's investors include New Enterprise Associates, MPM Capital, Third Rock Ventures, Ipsen and OrbiMed, and 4 more on record. ### How much has Rhythm Pharmaceuticals raised? Rhythm Pharmaceuticals has raised $311M across 10 rounds since 2010. ### When did Rhythm Pharmaceuticals last raise? Rhythm Pharmaceuticals's most recent round was an Undisclosed round of $175M in Jul 2025. ### What was Rhythm Pharmaceuticals's biggest round? Its most recent round, $175M in Jul 2025, is also its largest on record. ### Who backed Rhythm Pharmaceuticals first? Rhythm Pharmaceuticals's first round on record, in Mar 2010, was backed by New Enterprise Associates and MPM Capital. ### What stage is Rhythm Pharmaceuticals at? Rhythm Pharmaceuticals's latest named round is an Undisclosed round, in Jul 2025. ### Where is Rhythm Pharmaceuticals based? Rhythm Pharmaceuticals is based in the United States. ## Companies like Rhythm Pharmaceuticals 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