Oura Health files for a U.S. IPO, valued at $11 billion following an $875 million funding round.

ChainCatcher report: On May 21, smart ring manufacturer Oura Health Oy officially submitted a confidential draft of its S-1 registration statement to the U.S. Securities and Exchange Commission, planning to list on the U.S. stock market later this year, with Goldman Sachs and JPMorgan Chase serving as lead underwriters for the IPO. Founded in 2013 in Oulu, Finland, Oura’s three co-founders—Petteri Lahtela, Kari Kivelä, and Markku Koskela—all come from the R&D hubs of Nokia and Polar, a global pioneer in heart rate monitoring. In October 2025, the company completed its Series E financing, co-led by Fidelity Investments, raising $875 million and achieving a post-money valuation of $11 billion. Prior to this, the company had raised over $1.5 billion in total funding.