Berkshire Hathaway filed its last 13F disclosure under Warren Buffett's leadership, marking a historic transition as Greg Abel assumes day-to-day control. The filing reveals Berkshire's first-ever investment in the New York Times Company, acquiring 5,065,744 shares. This strategic move signals confidence in the newspaper's successful digital transformation and subscription business model.

Beyond the media bet, Berkshire reinforced its energy position by increasing its Chevron stake from 122 million to 130 million shares. The move aligns with Buffett's preference for companies with strong balance sheets and cash generation capabilities. Meanwhile, the firm reduced its holdings in several tech giants, including a significant trim of its Amazon position from 10 million to 2.3 million shares.

Despite these adjustments, Berkshire maintained several core holdings, including its massive Apple stake and unchanged positions in Coca-Cola and American Express. The portfolio changes reflect careful rebalancing rather than sweeping strategic shifts. With Buffett transitioning to chairman while remaining involved, Berkshire's investment approach appears to be maintaining its traditional focus on quality businesses with durable competitive advantages.