** Shares of Voice AI platform SoundHound AI SOUN.O, sidewalk delivery robots maker Serve Robotics SERV.O and Nano-X Imaging NNOX.O fall premarket after AI giant Nvidia NVDA.O dissolves stake in the companies

** SOUN down 10.8%, SERV falls 27.2% and NNOX down 3.8% in trading before the bell

** NVDA discloses stake of 1.7 mln shares in China's self-driving technology startup WeRide WRD.O and 1.2 mln shares in AI cloud firm Nebius Group NBIS.O

** U.S.-listed shares of WRD more than doubled to $36.78, while NBIS up 6% to $44.22 in premarket trading

** Nvidia cut its stake in Arm holdings ARM.O by 43.8% to 1.1 mln

(Reporting by Harshita Mary Varghese in Bengaluru)

((HarshitaMary.Varghese@thomsonreuters.com))