source:[1] UBS Puts AST SpaceMobile Stock on Hold. The Shares Fall to Earth. (https://finance.yahoo.com/m/f9d6304c-175f-342 ...)[2] AST SpaceMobile (ASTS) Stock Downgraded by UBS as SpaceX Competition Intensifies (https://vertexaisearch.cloud.google.com/groun ...)[3] Iridium Communications stock rating downgraded by Raymond James on SpaceX deal (https://vertexaisearch.cloud.google.com/groun ...)