(Reuters) - Nvidia ( NVDA ) reduced its stake in British chip firm Arm Holdings by about 44% and exited its holdings in Serve Robotics ( SERV ) and SoundHound AI ( SOUN ) in the fourth quarter, a regulatory filing showed on Friday.

The Santa Clara, California-based company reported new holdings in the quarter ended December 31, including 1.7 million shares in China's self-driving startup WeRide Inc ( WRD ), sending its shares up by 96% in premarket trading.

Shares of Nebius Group ( NBIS ) rose 6% after Nvidia ( NVDA ) reported 1.2 million shares in AI cloud firm.

The artificial intelligence chip designer cut its stake in Arm by 43.8% to 1.1 million shares.

Nvidia ( NVDA ) also exited its holdings in Serve Robotics ( SERV ), known for its sidewalk delivery robots, sending shares down 31%.

It also dissolved its stake in Israel-based medtech company Nano-X Imaging Ltd ( NNOX ), sending its stock down by 4% in premarket trading.

Shares of voice assistant maker SoundHound AI ( SOUN ) fell 10%.