Warren Buffett's Berkshire Hathaway significantly increased its investment in Delta Air Lines during the second quarter of 2026, according to a recent SEC filing. The company acquired an additional 17.5 million shares, bringing its total to over 57.3 million. This boosted the value of its stake by approximately $2.72 billion, from $2.65 billion at the end of the first quarter to $5.37 billion by June 30. The move signals a growing conviction in the airline, a sector Buffett has historically been skeptical of.
Investors should note that 13F filings are a delayed look at a firm's holdings, revealing positions held at the end of the previous quarter. The increased stake in Delta was part of a broader series of portfolio adjustments by Berkshire, which became a net buyer of stocks in the second quarter for the first time in over three years. This particular investment builds upon a position that was initiated earlier in 2026.