The Oakmark Funds are advised by Harris Associates L.P. an autonomous subsidiary of Natixis Investment Managers, L.P.

Learn more about the principles and philosophy behind our funds at

Harris Associates

111 South Wacker Drive, Suite 4600
Chicago, Illinois 60606

John Sitarz portrait

John A. Sitarz, CFA, CPA

Partner and Portfolio Manager

John Sitarz has been a manager for the Oakmark Global Fund and the Oakmark Global Select Fund since 2022. He is also an investment analyst at Harris Associates and a vice president of the Oakmark Funds.

He joined Harris Associates in 2013. During his time at the firm, he has served as a research associate and assistant. Prior to that he was an audit senior assistant at Deloitte & Touche.

Mr. Sitarz earned B.S. degrees in accounting and business administration from the University of Denver (2012).

Funds under management


Oakmark Global Fund: Second Calendar Quarter 2023

June 30, 2023

During the quarter, we initiated new positions in three companies and eliminated our positions in four companies.

Oakmark Global Select Fund: Second Calendar Quarter 2023

June 30, 2023

A top contributor to the Fund’s performance was a global communications services provided based in the U.S., while a Chinese multinational technology company was a top detractor.

Oakmark Global Fund: First Calendar Quarter 2023

March 31, 2023

Given the volatility in the quarter, we were more active than usual adding six new names and selling seven.

We do value investing differently

At Oakmark, we don’t have an opinion about how equities will perform this year, if a recession will start or if the political parties will produce pro-growth candidates during the next election cycle. As long-term investors, we don’t think it matters.