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

Jason Long- Portfolio Manager- Headshot

Jason E. Long, CFA

Partner and Portfolio Manager

Jason Long has been a manager of the Oakmark Global Fund since 2016. He is also an investment analyst on the international research team and a vice president of the Oakmark Funds.

He rejoined Harris in 2011 after having previously worked at the firm as an international investment analyst from 2004 to 2006. In addition, he served as a senior research analyst at Security Global Investors, partner at Capital Partners and senior research associate at Brandes Investment Partners.

Mr. Long earned a B.A. degree in finance and international economics from San Diego State University (1999).

Funds under management


Oakmark Global Fund: Third Quarter 2021

September 30, 2021

Regardless of the investing landscape, our job as managers of the Global Fund is to invest in the most attractive opportunities wherever we find them. The location of a company might affect its short-term...

Oakmark Global Fund: Second Quarter 2021

July 8, 2021

While academic thinking may change with the times, we base our investing on a factor that does not change—human nature. As long as human emotion works to cause mispricing of securities, we disciplined value...

Oakmark Global Fund: First Quarter 2021

March 31, 2021

During the quarter, we introduced five names to the portfolio and eliminated two. But this understates the actual activity level. We also pruned back 21 holdings as their prices increased.

News + Insights

Picture of coins and paper money


The Case for European Financials

March 24, 2020

The international team portfolio managers reflect on why we believe the Oakmark International Fund is positioned in strong banks in the European financials sector...

Looking up beside several skyscrapers


Oakmark Global 20th Anniversary Retrospective

August 12, 2019

Portfolio Manager Clyde McGregor commemorates the 20th anniversary of Oakmark Global by reflecting on the Fund’s history from inception onward.

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 for 2020. As long-term investors, we don’t think it matters.