The first high-flying AI stock Warren Buffett secretly owns is industry-leading networking-solutions provider Broadcom (NASDAQ: AVGO). New England Asset Management closed out the third quarter with 19,855 shares of Broadcom, which has a present-day value of nearly $4.5 million.

When I make reference to Buffett's favorite stock, I'm talking about none other than Berkshire Hathaway itself. Buffett has authorized the repurchase of $77.8 billion worth of Berkshire stock since 2018, which is more than twice the amount the conglomerate invested in Apple.

According to Warren Buffett, true leadership isn’t about all that—it’s about setting the tone, staying consistent, and leading with purpose. Buffett, a master of decision-making and long-term vision,

The Oracle of Omaha has more than enough justification to add to the roughly $78 billion he's spent buying shares of his favorite stock since mid-July 2018.

Warren Buffett is widely considered the greatest investor. From 1965 through 2023, his conglomerate, Berkshire Hathaway, delivered an astounding 4,384,748% total return to shareholders, or nearly 20% on an annualized basis.

Warren Buffett’s Berkshire Hathaway has sold $133 billion worth of stocks in the first nine months of 2024. The company reduced its stakes in Apple, American Express, and Bank of America, which made up a large portion of its portfolio.