Bill Ackman (Pershing Square) is tracked through public portfolio filings, disclosed holdings, and institutional investment activity. This Bill Ackman (Pershing Square) portfolio page tracks Pershing Square holdings, stock picks, latest portfolio moves, and historical 13F filing changes so readers can see which public companies Pershing Square owns and how disclosed positions change over time. Bill Ackman (Pershing Square)'s public portfolio can help investors study position sizing, sector exposure, concentration, new buys, trims, exits, and the market themes behind reported capital allocation decisions. Top disclosed holdings and portfolio changes shown on this page include Microsoft Corp (MSFT), Hilton Worldwide Holdings Inc. Common Stock (HLT), Meta Platforms, Inc. - Class A Common Stock (META), Alphabet Cl A (GOOGL), and Amazon.com, Inc. - Common Stock (AMZN). Investors use Pershing Square 13F filings to study portfolio concentration, new buys, trims, exits, sector exposure, and the market evidence behind the latest disclosed holdings.