[Smart Ring Manufacturer Oura Secretly Files for U.S. IPO, Latest Funding Round Valued at $11 Billion] BlockBeats News, May 25: Smart ring manufacturer Oura Health Oy officially submitted a confidential draft S-1 registration statement to the U.S. Securities and Exchange Commission on May 21, planning to go public on the U.S. stock market later this year. Goldman Sachs and JPMorgan Chase will serve as the lead underwriters for this IPO. Ōura was founded in 2013 in Oulu, Finland, by three co-founders—Petteri Lahtela, Kari Kivelä, and Markku Koskela—who all hail from the R&D hubs of Nokia and global heart rate monitoring pioneer Polar. In October 2025, the company completed a Series E funding round co-led by Fidelity Investments, raising $875 million and achieving a post-money valuation of $11 billion. Previously, the company had raised over $1.5 billion in total funding. [Original Link]