Uber Technologies' Q1 2026 13F Shows Holdings Of 535,902,982 Grab Shares, 325,973,411 Aurora Innovation Shares, 13,715,121 Lucid Shares, 11,193,322 WeRide Shares, 7,139,208 Joby Aviation Shares, 2,070,629 Serve Robotics Shares, 135,042 Marqeta Shares