June 3 Reuters Sunshine Silver Mining Refining Company raised 270 million in its U.S. initial public offering on Wednesday, joining a growing number of companies rushing to seize buoyant investor enthusiasm for fresh listings. The Kellogg, Idahobased company sold 20 million shares at 13.50 apiece, at the lower end of its indicated range. The move comes amid a revival in U.S. IPO activity in 2026, with highprofile names such as Elon Musk39;s SpaceX and AI giant Anthropic gearing up to debut in th