Warren Buffett’s final portfolio adjustment before stepping down as CEO is more than just another 13F filing. With the latest 13F disclosure from Berkshire Hathaway, the legendary Warren Buffett’s final portfolio shift before retiring as CEO has come to light. This $274 billion portfolio is not just the Oracle’s "curtain call"—it serves as a massive question mark: In the AI-driven world of 2026, is Big Tech still the place to be? 1. Contradictory Signals: The Oracle Retreats, Institutions "Underweight"? Buffett’s moves remain characteristically decisive and defensive: $Apple(AAPL)$ was trimmed for the third straight quarter, and Amazon was slashed by a staggering 77%. Increased stakes in $Chevron(CVX)$ and