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 HarrisAssoc.com.

Harris Associates

111 South Wacker Drive, Suite 4600
Chicago, Illinois 60606
312-646-3600

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

Commentary

Oakmark Global Fund: First Calendar Quarter 2024

March 31, 2024

A German bus and truck manufacturer was a top contributor to the Fund’s performance during the quarter, while a wealth manager based in the U.K. was a top detractor.

Oakmark Global Select Fund: First Calendar Quarter 2024

March 31, 2024

A top contributor to the Fund’s performance was a U.S.-based fintech and payments company, while a top detractor was a U.S.-based telecommunications company.

Oakmark Global Fund: Fourth Calendar Quarter 2023

December 31, 2023

The top contributor to the Fund’s performance was a company that specializes in consumer finance, while a top detractor was a life science company with pharmaceuticals, consumer health and crop science divisions.

News + Insights

Image of a microphone

News

Tony Coniaris and John Sitarz on “Business Breakdowns” (12.06.23)

December 6, 2023

Portfolio Managers Tony Coniaris and John Sitarz do a deep dive on the cable industry and share why they see value in a communication...

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.