Earlier this month, we went through the portfolio moves that Warren Buffett, the legendary investor, chair and CEO of investing conglomerate Berkshire Hathaway Inc (NYSE: BRK.A)(NYSE: BRK.B).
Berkshire did report some of its latest financials for the quarter ending 30 September 2025 more than two weeks ago. However, this report only told us that Buffett was a net seller of stocks over the quarter. We didn't know exactly which stocks he, or his two investing lieutenants, had actually been buying and selling.
Well, today, that veil has been lifted. Thanks to the company's most recent '13F' filing, we get to have a good look at what's been happening in the Berkshire portfolio.
Image source: The Motley Fool
What has Buffett been buying at Berkshire?
Well, as we've already established, Buffett did a whole lot more selling than buying. Many of Berkshire's top holdings were trimmed. This includes a significant US$10.6 billion sell-down of Apple shares, representing about 15% of Berkshire's position.
Even so, the iPhone-maker remains Berkshire's largest holding, with the company retaining a US$64.9 billion stake. That's roughly 21% of Berkshire's portfolio.
Berkshire also offloaded meaningful chunks of Bank of America, Verisign and D.R. Horton.
Although Buffett, or his underlings, were net sellers of stocks, they were still picking up some shares.
As my Fool colleague Kevin reported earlier today, the most significant new position for Berkshire was in Google-owner Alphabet Inc (NASDAQ: GOOG)(NASDAQ: GOOGL). The filing shows that Berkshire initiated its first-ever position in Alphabet over the September quarter. The company recorded a US$4.34 billion position, or just over 17.8 million Class A shares, in Alphabet, as of 30 September.
Who really bought Alphabet stock?
This is a significant development for Berkshire, as Buffett has always shown, and discussed, a reluctance to invest in tech stocks. He famously pined about missing out on Alphabet's success back in 2019, and only initiated a small position in Amazon that same year.
Even the purchase was reportedly initiated by one of Buffett's lieutenants, Todd Combs or Ted Weschler. It's possible, even perhaps likely, that one of those two managers is responsible for the Alphabet purchase. Or perhaps it was a call made by the incoming CEO, Greg Abel. Abel is due to take the reins of Berkshire in January when Buffett sadly is scheduled to step back from the CEO role he has held since the 1960s.
We probably won't find out for a while, if at all.
Some other stocks Berkshire added to over the quarter just gone include Chubb, Domino's Pizza and Sirius XM.
Berkshire's five largest positions remain, in order: Apple, American Express, Bank of America, Coca-Cola and Chevron.
