Cameron Winklevoss, co-founder and president of Gemini Trust Co., left, and Tyler Winklevoss, co-founder and chief executive officer of Gemini Trust Co., on stage during the Bitcoin 2025 conference in Las Vegas, Nevada, US, on Tuesday, May 27, 2025. Bridget Bennett | Bloomberg | Getty ImagesGemini, the cryptocurrency exchange and custodian founded by Cameron and Tyler Winklevoss, has confidentially filed for an IPO in the U.S., according to a press release on Friday. The number of shares and the...