One billionaire recently increased his stake in Nvidia stock by more than 400%

Recent U.S. Securities and Exchange Commission filings have revealed the stocks the richest people in the world have been buying and selling in the past few months. Amazon $AMZN executive chairman Jeff Bezos sold about $6 billion worth of the online retailer’s stock in February. Warren Buffet trimmed his stake in Apple $AAPL by about 1% in the last quarter of 2023. And activist investor Carl Icahn revealed he has a nearly 10% stake in the budget airline JetBlue.
Here are some highlights of recent stock transactions made by the world’s wealthiest people.

Amazon $AMZN executive chairman Jeff Bezos has sold off about $6 billion in shares of Amazon this February, shrinking his stake in the company by about 2%. But he doesn’t seem finished yet. In a prior filing, Bezos proposed the sale of 50 million Amazon shares (pdf) worth an estimated $8.4 billion.

Warren Buffett’s holding company Berkshire Hathaway $BRK.B sold off about 1% of its stake in Apple $AAPL in the last quarter of 2023. Berkshire Hathaway now has a 5.9% stake in the tech giant worth about $176 billion, according to the Wall Street Journal. He also slashed his stake in HP $HPQ by 78%. In contrast, Buffett has increased his stake in Chevron $CVX by 18% to more than $18 billion, according to Forbes. The holding company also grew its stake in Occidental $OXY Petroleum by almost 9% to about $14.5 million and in satellite radio company SiriusXM to about $220 million.

Activist investor Carl Icahn revealed this week that he holds a 9.91% stake in the budget airline JetBlue. In an SEC filing he described JetBlue stock as undervalued, making it “an attractive investment opportunity.”

The Bill & Melinda Gates Foundation Trust reduced its stake in Microsoft $MSFT about 3% to about $14 billion, in the last quarter of 2023. During the same period it also trimmed its stake in Berkshire Hathaway $BRK.B Class B stock by 12% to $7 billion.

Bridgewater Associates, the investment firm founded by Ray Dalio, increased its stake in the computer chip company Nvidia $NVDA by 458%, in the last three months of 2023. It also bought 500,000 new shares of Google $GOOGL parent company, Alphabet.

Bill Ackman’s hedge fund management company, Pershing Square $SQ, grew its stake in the real estate company Howard Hughes Holdings by 12% or 2 million shares. He also decreased his stakes in Lowe’s and Chipotle $CMG by 82% and 13%, respectively.

Mexican Billionaire Carlos Slim bought $300 million stock in two American energy companies. Slim’s firm, Control Empresarial de Capitales, bought $230 million shares of Talos Energy and $75 million in PBF Energy in January.