By Danielle Haynes The Tesla logo is on display at a Tesla dealership showroom on March 14 in New York City. The company closed at a record-high $489 on Tuesday. File Photo by John Angelillo/UPI | License Photo Dec. 16 (UPI) -- Tesla shares closed at a record-high $489.88 on Tuesday, days after CEO Elon Musk announced the company had been testing driverless vehicles in Texas. Shares rose 3.1% for the day and were up 21% for the year, CNBC reported. This came after Tesla's worst quarter since 2022 when it dropped 36% in the first quarter of this year. Techstock² reported that in addition to the roboatxi announcement, Tesla saw a boost on the stock market in response to a fresh round of filings with the Securities Exchange Commission. The filings showed that WT Wealth Management increased its Tesla stake by 178.7%, Carter Financial Group opened a new Tesla position, Orion Portfolion solutions increased its holdings of Tesla by 14.8%, National Wealth Management Group increased its stake by 26.3% and Momentum Wealth Planning purchased a new stake of 9,802 shares worth about $3.11 million. Tesla also invested $1.2 billion in a battery cell plant in Berlin. With Tuesday's bounce, Tesla's market cap reached $1.63 trillion, making it the seventh-most valuable company in trading behind Nvidia, Apple, Alphabet, Microsoft, Amazon and Meta, CNBC reported.