Pat Dorsey

Biography

Pat Dorsey studied at Wesleyan University and Northwestern University and spent 2000 to 2011 at Morningstar, where he led equity research and helped develop its economic moat ratings. After a spell as director of research at Sanibel Captiva Trust, he launched Dorsey Asset Management in Chicago in January 2014. The firm runs a concentrated global portfolio of companies with durable competitive advantages. He wrote The Five Rules for Successful Stock Investing (2005) and The Little Book That Builds Wealth (2008).

In their own words

Dorsey Asset Management’s largest US holdings

From the Q2 2026 13F, worth $1.6bn in total. See every holding and change

1. ASML HoldingASML16.6%
2. ApplovinAPP14.5%
3. Royalty PharmaRPRX8.8%
4. Booking HoldingsBKNG8.5%
5. S&P GlobalSPGI8.3%
6. Uber TechnologiesUBER8.1%
7. Live Nation EntertainmentLYV7.7%
8. DanaherDHR7.6%
9. Meta PlatformsMETA7.2%
10. Aercap HoldingsAER7.2%