Legendary investor Warren Buffett's Berkshire Hathaway (Berkshire Hathaway) made significant changes to its investment portfolio in the last quarter, as revealed in the 13F filing submitted to the SEC for the quarter ended March 31, 2026. Buffett opened a new position in Delta Air Lines ($DAL) valued at $2.6 billion, and a new position in tech giant Alphabet ($GOOGL) valued at $1 billion.

These moves coincide with Berkshire's complete divestment of its holdings in credit card companies Visa ($V) and Mastercard ($MA), which were previously valued at $2.9 billion and $2.3 billion respectively. Such shifts suggest a potential change in Buffett's investment strategy, possibly moving from the financial payments industry towards airlines and technology companies. It is important to remember that 13F filings reflect the portfolio's status at the end of the quarter and are published with a delay of up to 45 days, so they do not necessarily reflect the fund's current positions.

Individual traders can learn from these moves that even giant investors like Buffett make substantial adjustments to their portfolios, sometimes by exiting large positions in favor of entering new sectors. Buffett's focus on value companies or those considered leaders in their fields, even if they are not high-growth, can be a lesson in long-term perspective and seeking opportunities across various industries.