Bill Ackman
Bill Ackman runs Pershing Square. At the end of Q1 2026 the fund reported $13.7B of US stocks in its SEC 13F filing, led by BN (17.6%), AMZN (17.4%), UBER (15.7%).
Biggest holdings (Q1 2026)
| Stock | Share of fund | Change this quarter |
|---|
| BN BROOKFIELD CORP | 17.6% | |
| AMZN AMAZON COM INC | 17.4% | |
| UBER UBER TECHNOLOGIES INC | 15.7% | |
| MSFT MICROSOFT CORP | 15.3% | New position |
| QSR RESTAURANT BRANDS INTL INC | 12.2% | |
| META META PLATFORMS INC | 11.1% | |
| HHH HOWARD HUGHES HOLDINGS INC | 8.7% | |
| SEG SEAPORT ENTMT GROUP INC | 0.8% | |
| GOOG ALPHABET INC | 0.7% | Trimmed (was 12.5%) |
| HTZ HERTZ GLOBAL HLDGS INC | 0.5% | |
| GOOGL ALPHABET INC | 0.1% | |
Big investment managers must list their US stock holdings with the SEC every quarter, up to 45 days after it ends. A 13F shows long stock positions only (no short bets, and few options), and it is how things stood on the last day of the quarter, not today.
What changed last quarter
- Opened a position in MICROSOFT CORP (now 15.3% of the fund)
- Trimmed ALPHABET INC (now 0.7% of the fund)
- Sold out of HILTON WORLDWIDE HLDGS INC
All insider buys · Legends · Executives
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