Team

After graduating from business school, John Osterweis served as a Senior Analyst concentrating on the forest products and paper industry for several regional brokerage firms and later for E.F. Hutton & Company, Inc. In addition to his activities as an analyst, Mr. Osterweis served as Director of Research for two firms and managed equity portfolios for over ten years.

In late 1982, Mr. Osterweis decided to devote himself full time to his portfolio management activities, and in April of 1983 launched Osterweis Capital Management. Mr. Osterweis has served as Director of the Lucas Museum of Narrative Art, Director on the Stanford Alumni Association Executive Board, Trustee of Bowdoin College, Director and Vice Chairman of Mt. Zion Hospital and Medical Center, and President of the Board of Directors for Summer Search Foundation. He currently serves as a Trustee of the San Francisco Ballet Association, Director of the San Francisco Free Clinic, and President Emeritus of the San Francisco Ballet Endowment Foundation, as well as Trustee Emeritus of Summer Search Foundation and of Bowdoin College.

He is a member of the firm’s Management Committee, a principal of the firm, and a co-lead Portfolio Manager for the core equity, growth & income, and flexible balanced strategies.

Mr. Osterweis graduated from Bowdoin College (B.A. in Philosophy, cum laude), and Stanford Graduate School of Business (M.B.A. with top honors in Finance).

Prior to joining Osterweis Capital Management in 2002, Greg Hermanski was a Vice President at Robertson Stephens and Co. where he was in charge of convertible bond research. Prior to that, Mr. Hermanski was a Research Analyst covering convertible, high yield, and distressed securities at Imperial Capital, LLC, and a Valuation Consultant for Price Waterhouse, LLC.

He is a principal of the firm and a co-lead Portfolio Manager for the core equity, growth & income, and flexible balanced strategies.

Mr. Hermanski graduated from the University of California, Los Angeles (B.A. in Business/Economics).

Prior to joining Osterweis Capital Management in 2011, Nael Fakhry worked as an Associate at American Securities, a private equity firm, and as an Analyst in the investment banking division of Morgan Stanley.

He is a principal of the firm and a co-lead Portfolio Manager for the core equity, growth & income, and flexible balanced strategies.

Mr. Fakhry graduated from Stanford University (B.A. in History, Phi Beta Kappa) and the University of California Berkeley, Walter A. Haas School of Business (M.B.A., C.J. White Scholar).

Jim Callinan was the Co-Founder & Chief Investment Officer at RS Investments. He also co-founded the RS Growth Group LLC in 1996 and managed the RS Emerging Growth Fund from 1996 until 2010. In 1999 Mr. Callinan was named Morningstar’s Domestic Stock Manager of the Year.*

He served as portfolio manager for the Putnam OTC Emerging Growth Fund from 1994 to 1996 and began his career at Putnam Investments as an equity research analyst in 1987. He joined Osterweis Capital Management in 2016 and brought with him the Emerging Growth Partners, LP, a concentrated small cap growth strategy he founded at RS in 2006.

Mr. Callinan is a member of the Weatherbie Capital Advisory Board.

He is an equity owner in the firm and the Lead Portfolio Manager for the emerging growth strategy. He is also a Portfolio Manager for the growth & income and flexible balanced strategies.

Mr. Callinan graduated from Harvard College (B.A. in Economics), New York University (M.S. in Accounting) and Harvard Business School (M.B.A.). Mr. Callinan holds the CFA designation.

Prior to joining Osterweis Capital Management in 2016, Matt Unger spent three years at RS Investments as a Research Associate covering small cap growth companies in the medical technology and industrial sectors. Before graduate school, Matt worked at Platte River Capital covering the medical device sector from 2008-2010.

He is an equity owner in and principal of the firm and a Portfolio Manager for the emerging growth strategy.

Mr. Unger graduated from Trinity University (B.S. in Finance, cum laude) and Southern Methodist University, Cox School of Business (M.B.A.). Mr. Unger holds the CFA designation.

Prior to joining Osterweis Capital Management in 2014, Bryan Wong was a member of the investment team managing the endowment of the David and Lucile Packard Foundation. Before that, Mr. Wong was an Analyst at Wohl Capital Management, a long/short hedge fund.

He is an equity owner in and a principal of the firm and a Portfolio Manager for the emerging growth strategy.

Mr. Wong serves on the investment committee of the Asian Pacific Fund.

Mr. Wong graduated from Yale University (B.A. in Political Science and International Studies with distinction) and the University of California Berkeley, Haas School of Business (M.B.A., Investment Management Fellow). Mr. Wong holds the CFA designation and is a member of the CFA Society of San Francisco.

Carl Kaufman joined Osterweis Capital Management in 2002 after almost 24 years in various positions at Robertson Stephens and Merrill Lynch. He has managed the Osterweis Strategic Income Fund since its inception in 2002 and is also the Managing Director of Fixed Income and a lead Portfolio Manager for the Osterweis Growth & Income Fund.

In his management role at the firm, he is responsible primarily for investment matters and is a member of the firm’s Management Committee. Mr. Kaufman is a principal of the firm. Additionally, he is a member of the Board of Trustees for the San Francisco Conservatory of Music.

Mr. Kaufman graduated from Harvard University and attended New York University Graduate School of Business Administration.

Prior to joining Osterweis Capital Management in 2013, Bradley Kane was a Portfolio Manager and Analyst at Newfleet Asset Management, where he managed both high yield and leveraged loan portfolios. Before that, he was a Vice President at GSC Partners, focusing on management of high yield and collateralized debt obligations. Earlier in his career, he managed high yield assets as a Vice President at Mitchell Hutchins Asset Management.

He is a principal of the firm and a Portfolio Manager for the strategic income strategy.

Mr. Kane graduated from Lehigh University (B.S. in Business & Economics).

Prior to joining Osterweis Capital Management in 2017, Craig Manchuck was a Managing Director of Fixed Income Sales at Stifel Nicolaus, where he was responsible for sales and origination of high yield bonds, leveraged loans, and post reorg equities. Before Stifel, he held a similar role at Knight Capital. Prior to that, Mr. Manchuck was the Executive Director for Convertible Securities and then High Yield/Distressed Securities at UBS. He has previous experience in Convertible Securities Sales at Donaldson, Lufkin & Jenrette, SBC Warburg, and Merrill Lynch.

He is a principal of the firm and a Portfolio Manager for the strategic income strategy.

Mr. Manchuck graduated from Lehigh University (B.S. in Finance) and NYU Stern School of Business (M.B.A.).

Venk Reddy joined Osterweis Capital Management in 2022 as part of the Zeo Capital Advisors team transition. Prior to founding Zeo Capital in 2009, Mr. Reddy was a co-founder of Laurel Ridge Asset Management, a multi-strategy hedge fund, where he managed the credit, distressed, and event-driven portfolios. Previously, he structured derivative products and was head of delta-one trading as a portfolio manager within Bank of America’s Equity Financial Products group (EFP). Mr. Reddy also managed investments in event-driven situations, convertible instruments, and options at Pine River Capital Management and HBK Investments, where he started his career.

Mr. Reddy is a principal of the firm and a Portfolio Manager for the sustainable credit strategies. He is also a portfolio manager for the growth & income and flexible balanced strategies.

He currently serves as a Trustee of Lick-Wilmerding High School in San Francisco. He previously served as a Trustee and officer of the Katherine Delmar Burke School in San Francisco.

Mr. Reddy graduated from Harvard University (B.A. in Computer Science with Honors).

Marcus Moore joined Osterweis Capital Management in 2022 as part of the Zeo Capital Advisors team transition, where he was an Assistant Portfolio Manager focused on credit research, including sustainability analysis. Before joining Zeo in 2019, Mr. Moore worked at Wells Fargo Bank for 14 years as an Analyst within Principal Investing, responsible for the retail, consumer, and gaming sectors across various asset classes including high yield bonds, leveraged loans, and structured products. Prior to working at Wells Fargo, Mr. Moore worked at Edison Mission Energy as an analyst and at Hamilton Resources, Procter & Gamble, and Goldman Sachs.

He is an Assistant Portfolio Manager for the sustainable credit strategies.

Mr. Moore graduated from Morgan State University in Baltimore, MD (B.S. in Accounting) and from the University of California, Los Angeles Anderson School with an M.B.A. He also holds the CPA designation.

Prior to joining Osterweis Capital Management in 2016, Eddy Vataru worked in senior management positions at Incapture, LLC and Citadel, LLC. Before that he spent over 11 years at BlackRock (formerly Barclays Global Investors, BGI), where his last position was as Managing Director and Head of U.S. Rates and Mortgages. While in this role, BGI worked with the U.S. Treasury in implementing its Agency MBS Purchase Program, buying mortgages for the U.S. government from 2008-2009.

He is a principal of the firm and the lead Portfolio Manager for the total return fixed income strategy. Mr. Vataru is also a Portfolio Manager for the growth & income and flexible balanced strategies.

Mr. Vataru graduated from California Institute of Technology (B.S. in Chemistry & Economics) and from Olin Business School at Washington University in St. Louis (M.B.A.). Mr. Vataru holds the CFA designation.

Prior to joining Osterweis Capital Management in 2018, John Sheehan spent more than 20 years working at Citigroup, first as Managing Director responsible for Investment Grade Syndicate in New York City, where he advised issuers on accessing funding in the corporate bond market. Later at Citigroup, he was Managing Director in charge of West Coast Investment Grade Sales in San Francisco, where he covered several of the largest U.S. investment grade credit investors.

He is a principal of the firm and a Portfolio Manager for the total return fixed income strategy.

Mr. Sheehan graduated from Georgetown University (B.A. in Economics). Mr. Sheehan holds the CFA designation.

Prior to joining Osterweis Capital Management in 2018, Daniel Oh spent over eight years as a Director at Estabrook Capital Management in New York City and was the lead Portfolio Manager of the Estabrook Investment Grade Fixed Income Fund. Before that he was at Merrill Lynch & Co. as an Associate in Prime/Alt-A-Non-Agency Mortgage Trading. Prior to that, he held positions at Seneca Financial Group and Morgan Stanley.

Mr. Oh’s professional history includes experience in investment grade corporate credit, non-agency and whole loan mortgages, structured credit, and distressed investments.

He is a principal of the firm and a Portfolio Manager for the total return fixed income strategy.

Mr. Oh graduated from Columbia University (B.A. in Economics/Political Science) and from the Stephen M. Ross School of Business at the University of Michigan (M.B.A.).

Prior to joining Osterweis Capital Management in 2003, Tom Davidson was Senior Trader at Sand Hill Advisors, overseeing equity and fixed income trading. Before that, he held trading positions at RSS Investment Counsel in San Francisco, and Alex Brown & Sons in New York.

He is a principal of the firm and Director of Equity Trading.

Mr. Davidson graduated from Southern Connecticut State University (B.S. in Business Administration).

Prior to joining Osterweis Capital Management in 2010 as a Performance Analyst, Adam Slavin was first a Senior Fund Accountant and then a Senior Associate and Supervisor at State Street Bank, where he oversaw the daily operations of fund accounting, monitored and reported performance to clients and oversaw the setup of new funds.

Mr. Slavin serves on the board of the San Francisco Securities Traders Association (SFSTA).

He is a principal of the firm and Portfolio Analyst and Trader.

Mr. Slavin graduated from California State University Sacramento (B.S. in Business Finance).