Bill Ackman runs Pershing Square Capital Management, L.P.. Concentrated activist investor who takes massive public positions and fights loudly for change. High-conviction, long holding periods, not afraid to be wrong loudly. As of the Q1 2026 13F filing, the disclosed long-equity portfolio is valued at $13.7B across 10 positions. The largest holdings are BROOKFIELD CORP, AMAZON COM INC, and UBER TECHNOLOGIES INC (BROOKFIELD CORP alone is 17.6% of the book).

New positions opened in the latest quarter include MICROSOFT CORP. Recently exited names: HILTON WORLDWIDE HLDGS INC.

Bill Ackman runs Pershing Square Capital Management, L.P.. Concentrated activist investor who takes massive public positions and fights loudly for change. High-conviction, long holding periods, not afraid to be wrong loudly. As of the Q1 2026 13F filing, the disclosed long-equity portfolio is valued at $13.7B across 10 positions. The largest holdings are BROOKFIELD CORP, AMAZON COM INC, and UBER TECHNOLOGIES INC (BROOKFIELD CORP alone is 17.6% of the book).

New positions opened in the latest quarter include MICROSOFT CORP. Recently exited names: HILTON WORLDWIDE HLDGS INC.