
Bill Ackman, the renowned investor and founder of Pershing Square Capital Management, L.P., has concentrated nearly 70% of his portfolio in five key stocks, according to the firm's second quarter 2025 13F filings.

Bill Ackman, the renowned investor and founder of Pershing Square Capital Management, L.P., has concentrated nearly 70% of his portfolio in five key stocks, according to the firm's second quarter 2025 13F filings.