Artificial intelligence chipmaker Nvidia disclosed in a regulatory filing Friday that it sold off three tech stocks and added stakes in two others in the fourth quarter. Nvidia stock rose on Friday.

In its form 13F-HR with the U.S. Securities and Exchange Commission, Nvidia revealed that it had sold its stakes in Nano-X Imaging (NNOX), Serve Robotics (SERV) and SoundHound AI (SOUN). It also trimmed its position in Arm Holdings.

Nvidia said it added new stakes in Nebius Group (NBIS) and WeRide (WRD).

Meanwhile, it maintained its investments in Applied Digital (APLD) and Recursion Pharmaceuticals (RXRX).

On the stock market today, Nvidia stock rose 2.6% to close at 138.85.

Shares of China-based WeRide rocketed 83.5% to end the regular session Friday at $31.50.

WeRide, which went public on Nasdaq in October, is developing autonomous driving technology. WeRide wants to build a global robotaxi empire, the Wall Street Journal reported. The company already operates driverless vehicles in 30 cities across nine countries.

Recursion Pharmaceuticals surged 23.9% to $10.53. And Applied Digital stock jumped 15.2% to $9.11.

Nebius stock rose 6.7% to close at $44.49. Nebius provides AI data center infrastructure. Its core business is an AI-centric cloud platform built for intensive AI workloads.

Elsewhere on Friday, Arm Holdings stock sank 3.2% to $159.54 on Friday. Arm is the leading supplier of semiconductor designs and intellectual property.

Nano-X Imaging, also known as Nanox, saw its stock slide 11% to $6.72. Nanox is developing medical imaging technologies based on advanced AI.

SoundHound AI stock plunged 28.1% to $10.97. SoundHound provides voice-based conversational AI technology for automakers and for fast-food restaurant drive-thrus.

Serve Robotics stock tumbled 39.6% to $13.85. Serve makes autonomous sidewalk delivery robots.