# Butterfly funding: rounds and investors > Butterfly has raised $253M across 4 rounds since 2014. Investors include Precursor Ventures, Daphni and Gates Foundation. Every round with its source. Source: https://millionrounds.com/company/butterfly (Millionrounds; every figure on the page links to its filing or article) United States · [Series D startup](https://millionrounds.com/companies) # Who invested in *Butterfly* 4 rounds we have observed, with the 6 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 **$253M** raised across 4 rounds since 2014, from 5 sources **$300K** Seed **$300K** Seed **$2.4M** Seed **$250M** Series D - **Latest round:** Series D, $250M Sept 2018 - **Step-up i:** 104.2× - **Investors:** 6 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. 2015 2016 2017 2018 **$300K** Seed **$300K** Seed **$2.4M** Seed **$250M** Series D - **First round:** Seed, $300K - **Biggest round:** $250M - **Usual gap between rounds:** 12 months ## The rounds - **Sept 2018** Series D **$250M** *3 new* [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) Fidelity/ Fosun Pharma Jamie Dinan Reported by VentureBeat - **Oct 2017** Seed **$2.4M** *3 new* [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) [Daphni](https://millionrounds.com/fund/daphni) [Tectonic Ventures](https://millionrounds.com/fund/tectonic-ventures) Reported by FinSMEs and 1 other - **Apr 2015** Seed **$300K** No investor was named in the report. From a historical funding record SEC filing: $3.1M sold, first sale Apr 2015 - **Oct 2014** Seed **$300K** No investor was named in the report. From a historical funding record ## 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. **Seed** 2014 **Seed** 2015 **Seed** 2017 **Series D** 2018 [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) [Daphni](https://millionrounds.com/fund/daphni) [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) [Tectonic Ventures](https://millionrounds.com/fund/tectonic-ventures) Fidelity/ Fosun Pharma Jamie Dinan ## Everyone who backed them [Precursor Ventures](https://millionrounds.com/fund/precursor-ventures) VC firm **1** round [Daphni](https://millionrounds.com/fund/daphni) VC firm **1** round [Gates Foundation](https://millionrounds.com/fund/bill-and-melinda-gates-foundation) Institutional LP **1** round [Tectonic Ventures](https://millionrounds.com/fund/tectonic-ventures) VC firm **1** round Fidelity/ Fosun Pharma no record of our own yet **1** round Jamie Dinan no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=butterfly). ## Quick answers about Butterfly ### Who invested in Butterfly? Butterfly's investors include Precursor Ventures, Daphni, Gates Foundation, Tectonic Ventures and Fidelity/ Fosun Pharma, and 1 more on record. ### How much has Butterfly raised? Butterfly has raised $253M across 4 rounds since 2014. ### When did Butterfly last raise? Butterfly's most recent round was a Series D of $250M in Sept 2018. ### What was Butterfly's biggest round? Its most recent round, $250M in Sept 2018, is also its largest on record. ### Who backed Butterfly first? Butterfly's first round on record, in Oct 2017, was backed by Precursor Ventures, Daphni and Tectonic Ventures. ### What stage is Butterfly at? Butterfly's latest named round is a Series D, in Sept 2018. ### Where is Butterfly based? Butterfly is based in the United States. ## Companies like Butterfly 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