Before Retiring, Warren Buffett Dumped 77% of Berkshire's Stake in Amazon and Opened a New Position in a Stock That Has Become a Digital Media Juggernaut

Group 1 - Berkshire Hathaway disclosed its equities portfolio for Q4 2025, marking the last quarter under CEO Warren Buffett's leadership [1] - Buffett will remain as chairman but will have limited involvement moving forward, making this quarter significant for investors to gauge his market perspective [2] - In Q4, Berkshire reduced its Amazon stake by 77% and initiated a new position in a rapidly growing digital media company [3] Group 2 - Berkshire's investment in Amazon was never a high-conviction play, with the position consistently below 1% of the total portfolio since its purchase in 2019 [4] - Amazon operates two major businesses: its e-commerce platform with advanced logistics and Amazon Web Services (AWS), which provides cloud computing solutions [5][6] - Amazon faces challenges including tariffs affecting its e-commerce business and perceptions that AWS is lagging in its AI strategy compared to competitors [7]