Elon Musk defends his old tweets in securities fraud trial in San Francisco
Alex Spiro, attorney to Elon Musk, center, departs court in San Francisco, California, US, on Tuesday, Jan. 17, 2023.
Benjamin Fanjoy | Bloomberg | Getty Images
Tesla CEO Elon Musk appeared in a San Francisco federal court on Friday to defend tweets he posted to his tens of millions of followers in August 2018.
The tweets said he had “funding secured” to take his electric vehicle company private for $420 per share, and that “investor support” for such a deal was “confirmed.”
Tesla’s stock trading initially halted after the tweets, then shares were highly volatile for weeks. Musk later said that he had been in discussions with Saudi Arabia’s sovereign wealth fund and felt sure that funding would come through at his proposed price. A deal never materialized.
The SEC charged Musk and Tesla with civil securities fraud after the tweets. Musk and Tesla each paid $20 million fines to the agency, and struck a revised settlement agreement that required Musk to temporarily relinquish his role as chairman of the board at Tesla.
His 2018 tweets also triggered a shareholder class action lawsuit from Tesla investors. They alleged that Musk’s tweets misled them and said relying on his statements to make trades cost them significant amounts of money.
The shareholders’ trades in question took place during a 10-day period before Musk seemed to admit a take-private deal was not going to happen in 2018.
Musk said under oath on Friday that it’s difficult to link Tesla’s stock price to his tweets.
“There have been many cases where I thought that if I were to tweet something, the stock price would go down,” Musk said. “For example, at one point I tweeted that I thought that, in my opinion, the stock price was too high…and it went went higher, which was, which is, you know, counterintuitive.”
A big increase in trading volume after he tweeted
It’s rare for top executives at publicly traded companies to discuss their stock price because any commentary can influence price movements.
Daniel Taylor, director of the Wharton Forensics Analytics Lab and professor at the University of Pennsylvania, analyzed every trade in Tesla stock occurring on Aug. 7, 2018, the day that Musk tweeted. He calculated the total trading volume every minute from the time the market opened through the time of Musk’s tweets about a buyout.
Taylor found that the trading volume the minute Musk tweeted, at 12:48 p.m. ET that day, was over $350 million, and the trading volume for Tesla shares the next minute was over $250 million. By comparison, the average volume five minutes before Musk tweeted was $32 million per minute. The minute before Musk tweeted, trading volume was $24 million.
“It is generally true that correlation is not causation,” Taylor told CNBC on Friday, after Musk’s first day on the witness stand. “However, I am unaware of any alternative explanation for a 10-fold increase in trading volume the same minute that Elon Musk tweeted.”
Musk also testified about his low opinion of short sellers on Friday.
“I believe short selling should be made illegal,” Musk said, referring to short sellers as “bad people on Wall Street” who “steal” from other investors. He said they also plant stories in the media to “get the stock to go down” and will “do anything in their power to make a company die.”
Tesla was among the most heavily shorted stocks in August 2018, when Musk made the statements about taking Tesla private. Tesla’s share price surged about 10% during trading that day. Short sellers face enormous losses when shares in a given company climb higher.
Some of the plaintiffs in the trial that’s underway claim that Musk’s “funding secured” tweets were intended to put upward price pressure on Tesla’s stock driving a so-called “short squeeze.”
Musk’s testimony is not yet complete and the court plans to hear from him again on Monday.
WATCH: Musk testifies over tweets
Chief executive officer of Google Sundar Pichai.
Marek Antoni Iwanczuk | Sopa Images | Lightrocket | Getty Images
Google on Friday made the latest a splash in the AI talent wars, announcing an agreement to bring in Varun Mohan, co-founder and CEO of artificial intelligence coding startup Windsurf.
As part of the deal, Google will also hire other senior Windsurf research and development employees. Google is not investing in Windsurf, but the search giant will take a nonexclusive license to certain Windsurf technology, according to a person familiar with the matter. Windsurf remains free to license its technology to others.
“We’re excited to welcome some top AI coding talent from Windsurf’s team to Google DeepMind to advance our work in agentic coding,” a Google spokesperson wrote in an email. “We’re excited to continue bringing the benefits of Gemini to software developers everywhere.”
The deal between Google and Windsurf comes after the AI coding startup had been in talks with OpenAI for a $3 billion acquisition deal, CNBC reported in April. OpenAI did not immediately respond to a request for comment.
The move ratchets up the talent war in AI particularly among prominent companies. Meta has made lucrative job offers to several employees at OpenAI in recent weeks. Most notably, the Facebook parent added Scale AI founder Alexandr Wang to lead its AI strategy as part of a $14.3 billion investment into his startup.
Douglas Chen, another Windsurf co-founder, will be among those joining Google in the deal, Jeff Wang, the startup’s new interim CEO and its head of business for the past two years, wrote in a post on X.
“Most of Windsurf’s world-class team will continue to build the Windsurf product with the goal of maximizing its impact in the enterprise,” Wang wrote.
Windsurf has become more popular this year as an option for so-called vibe coding, which is the process of using new age AI tools to write code. Developers and non-developers have embraced the concept, leading to more revenue for Windsurf and competitors, such as Cursor, which OpenAI also looked at buying. All the interest has led investors to assign higher valuations to the startups.
This isn’t the first time Google has hired select people out of a startup. It did the same with Character.AI last summer. Amazon and Microsoft have also absorbed AI talent in this fashion, with the Adept and Inflection deals, respectively.
Microsoft is pushing an agent mode in its Visual Studio Code editor for vibe coding. In April, Microsoft CEO Satya Nadella said AI is composing as much of 30% of his company’s code.
The Verge reported the Google-Windsurf deal earlier on Friday.
Technology
Nvidia’s Jensen Huang sells more than $36 million in stock, catches Warren Buffett in net worth
Jensen Huang, CEO of Nvidia, holds a motherboard as he speaks during the Viva Technology conference dedicated to innovation and startups at Porte de Versailles exhibition center in Paris, France, on June 11, 2025.
Gonzalo Fuentes | Reuters
Nvidia CEO Jensen Huang unloaded roughly $36.4 million worth of stock in the leading artificial intelligence chipmaker, according to a U.S. Securities and Exchange Commission filing.
The sale, which totals 225,000 shares, comes as part of Huang’s previously adopted plan in March to unload up to 6 million shares of Nvidia through the end of the year. He sold his first batch of stock from the agreement in June, equaling about $15 million.
Last year, the tech executive sold about $700 million worth of shares as part of a prearranged plan. Nvidia stock climbed about 1% Friday.
Huang’s net worth has skyrocketed as investors bet on Nvidia’s AI dominance and graphics processing units powering large language models.
The 62-year-old’s wealth has grown by more than a quarter, or about $29 billion, since the start of 2025 alone, based on Bloomberg’s Billionaires Index. His net worth last stood at $143 billion in the index, putting him neck-and-neck with Berkshire Hathaway‘s Warren Buffett at $144 billion.
Shortly after the market opened Friday, Fortune‘s analysis of net worth had Huang ahead of Buffett, with the Nvidia CEO at $143.7 billion and the Oracle of Omaha at $142.1 billion.
The company has also achieved its own notable milestones this year, as it prospers off the AI boom.
On Wednesday, the Santa Clara, California-based chipmaker became the first company to top a $4 trillion market capitalization, beating out both Microsoft and Apple. The chipmaker closed above that milestone Thursday as CNBC reported that the technology titan met with President Donald Trump.
Brooke Seawell, venture partner at New Enterprise Associates, sold about $24 million worth of Nvidia shares, according to an SEC filing. Seawell has been on the company’s board since 1997, according to the company.
Huang still holds more than 858 million shares of Nvidia, both directly and indirectly, in different partnerships and trusts.
WATCH: Nvidia hits $4 trillion in market cap milestone despite curbs on chip exports
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