Berkshire Hathaway expands its investment portfolio, increasing its stake in Alphabet and taking a position in Delta Airlines as CEO Greg Abel settles into the role previously held by Warren Buffett. Multiple outlets report that Berkshire more than tripled its Alphabet holdings, with the investment described as rising to about $17 billion. CNBC also reports the increase as a 224% jump in Berkshire’s Alphabet shares. Separately, Berkshire buys or adds to its stake in Delta, with figures cited around $2.6 billion. One report says Berkshire’s Delta investment comes as Abel takes over after the transition from Buffett earlier this year. In addition to Alphabet and Delta, at least one outlet notes that Berkshire also invests in Macy’s, though the specific size of that investment is not detailed in the provided excerpts. Business Insider also indicates Berkshire exits several other stocks as part of a broader portfolio revamp. Overall, the changes reflect a shift toward larger positions in Alphabet and Delta alongside trimming or leaving other holdings.