Siena Secondary Fund acquired a stake in Finnish scaleup Oura Ring

23 August 2023

Siena Secondary Fund, an investment fund founded in early 2021, which focuses on secondary market transactions in high-growth late-stage startups by providing liquidity to early investors, (ex-)employees and founders, made its first deal in Finland, acquiring a stake in Oura Ring - the world's leading sleep-tracking healthtech company.

Oura Ring is a pioneering health and wellness technology company known for its smart ring technology. The Oura Ring monitors sleep, activity, and overall well-being, providing users with actionable insights to optimise their health and performance. Oura Ring is trusted by more than 1 million consumers worldwide from housewives to celebrities like Prince Harry, Kim Kardashian, Shaquille O’ Neal and many others. During the COVID outbreak, the device was used by the NBA for early detection of the virus. Several independent reviews across the world consider Oura Ring as the best sleep-tracking device in the industry.

In 2021, Oura raised a series C round of $100 million and a follow-up round in spring 2022 at a valuation of 2.5B USD which has helped to accelerate its growth.

"We are thrilled to be part of the Oura Ring journey, a company at the forefront of revolutionising personal health and wellness," said Rain Tamm, General Partner of Siena Secondary Fund. "Being a dedicated user of the product for several years myself, I believe that Oura Ring's commitment to data-driven insights and its exceptional product offering aligns perfectly with our vision for the future of healthcare technology. This investment signifies our belief in the company's ability to drive positive change in people's lives."

Siena Secondary Fund has raised funds from over 80 investors from successful old and new economy entrepreneurs across Europe and has acquired stakes in several well-known scale-ups such as Bolt, Testlio, Starship Technologies, Veriff, Kry, TransferGo, Printify and Booksy.


Additional information:
Siena Secondary Fund -
Oura Ring-

Rando Rannus,
General Partner
Mob +37256619970

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