N
Star Prestige Review

Lionstone Capital Management 13F annual report

Author

Sarah Rodriguez

Updated on March 15, 2026

Lionstone Capital Management is an investment fund managing more than $338 billion ran by Leon Lowenstein. There are currently 12 companies in Mr. Lowenstein’s portfolio. The largest investments include APi and Amazon.com, together worth $110 billion.

$338 billion Assets Under Management (AUM)

As of 7th August 2023, Lionstone Capital Management’s top holding is 2,428,740 shares of APi currently worth over $66.2 billion and making up 19.6% of the portfolio value.Relative to the number of outstanding shares of APi, Lionstone Capital Management owns more than approximately 0.1% of the company.In addition, the fund holds 334,500 shares of Amazon.com worth $43.6 billion, whose value grew 38.8% in the past six months. The third-largest holding is Copart worth $43.2 billion and the next is Alphabet Inc worth $41.4 billion, with 342,530 shares owned.

Currently, Lionstone Capital Management's portfolio is worth at least $338 billion. The total portfolio value may be much higher due to cash assets that are not publicly disclosed such as fixed income, real estate, or cash equivalents.

Careers at Lionstone Capital Management

The Lionstone Capital Management office and employees reside in New York, New York. According to the last 13-F report filed with the SEC, Leon Lowenstein serves as the Managing Member at Lionstone Capital Management.