Oura publicly files for initial public offering, looks to raise $2.2 billionPhoto Oura Files for IPO, Seeking $2.2 Billion at $15.62 Billion Valuation Used in Oura Files Publicly for IPO, Aims to Raise $2.2 Billion enOura Files Publicly for IPO, Aiming to Raise $2.2 Billion enOura Files Publicly for IPO, Aims to Raise $2.2 Billion enOura Files for IPO, Seeking $2.2 Billion and $15.62 Billion Valuation enOura Files for IPO, Seeking $2.2 Billion at $15.62 Billion Valuation en