Warren Buffett's Berkshire Hathaway boosts stake in Google parent Alphabet by whopping 83%

Warren Buffett’s Berkshire Hathaway said Friday it boosted the size of its investment in Alphabet by 83% in the second quarter, making the parent of Google and YouTube its third-largest stock holding.

Berkshire said in a regulatory filing that it owned nearly 106 million Alphabet shares worth about $37.8 billion as of June 30, up from 57.8 million shares three months earlier. The stake included a $10 billion investment announced in June, to help Alphabet expand its AI infrastructure.

Apple remained Berkshire’s largest stock investment, worth $66 billion at the end of June, followed by American Express at $51.3 billion. Bank of America and Coca-Cola ranked fourth and fifth.

Berkshire also said it eliminated its year-and-a-half investment in alcoholic beverages producer Constellation Brands, while adding to investments in Delta Air Lines and Macy’s that it began in the first quarter.

The changes were disclosed in a filing describing Berkshire’s U.S.-listed stock holdings as of June 30, which comprised most of its $323.8 billion equity portfolio.

Berkshire bought $23.5 billion and sold $3.7 billion of stocks in the second quarter, ending a 14-quarter stretch when it sold more stocks than it bought. Chief Executive Greg Abel has begun reducing the enormous cash pile that his predecessor Warren Buffett left him when the legendary investor stepped down at year end.

Berkshire’s cash stake fell to $364.7 billion on June 30 from $380.2 billion on March 31, a decline also reflecting $4.5 billion of stock buybacks. Buffett remains Berkshire’s chairman. He told CNBC last month it was his idea to invest in Alphabet, a stake Berkshire began building in last year’s third quarter. Buffett also said he and Abel consult on how Omaha, Nebraska-based Berkshire allocates capital.

The Delta investment grew 44% in the second quarter to 57.3 million shares worth nearly $5.4 billion, while the Macy’s investment more than doubled to about 7.3 million shares worth $173 million.

Berkshire also bought more shares of home builder Lennar and disclosed a tiny — $580,000 — stake in another home builder, D.R. Horton. It reduced its holdings in Ally Financial, Bank of America, Capital One, kidney dialysis provider DaVita, grocer Kroger and steel maker Nucor.