Bill Ackman

Ackman rotated Q1 2026: trimmed Google, Meta, Uber; opened Microsoft position (13% of portfolio); added Amazon.

Ackman's Q1 2026 13F filing reveals a significant portfolio rebalancing across mega-cap tech. The largest move was a new $2.1B position in Microsoft, representing approximately 13% of his disclosed equity book. Simultaneously, he trimmed Google (both GOOG and GOOGL combined) by roughly $2.0B across the two share classes—approximately 13% of his book—signaling a reduction in his largest prior tech exposure. He also trimmed Meta by $242.4M (≈2% of portfolio) and Uber by $313.3M (≈2% of portfolio). The sole addition beyond Microsoft was a $167.4M increase to Amazon (≈1% of portfolio). The pattern suggests a tactical reallocation within his tech and growth holdings: exiting or reducing positions in search and social platforms while establishing a major new stake in enterprise software and cloud infrastructure.