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 Co-Lead Portfolio Manager for the core equity, growth & income, quality cyclical growth, 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 Co-Lead Portfolio Manager for the core equity, growth & income, quality cyclical growth, 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).

Prior to joining Osterweis Capital Management in 2024, Jasmine Shen was an Investment Analyst on the event-driven team at Farallon Capital. Prior to that, Jasmine was an Investment Research Associate on the quality value equity team at Wellington Management.

She is a Senior Research Analyst for the core equity strategy.

Ms. Shen graduated summa cum laude from Northwestern University (B.A. in Mathematical Methods in the Social Sciences and Economics, with a third major in Statistics, Phi Beta Kappa and with interdisciplinary honors). She holds the CFA designation and is a member of the CFA Society of San Francisco.

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 small cap growth strategy.

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 small cap 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 small cap 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). He holds the CFA designation and is a member of the CFA Society of San Francisco.

Prior to joining Osterweis Capital Management in 2023, Jamie Wolf was an Equity Analyst at Invesco LTD covering small, mid, and large cap companies in the consumer sector. Before that, he worked at Haverford Trust Company as a Senior Research Analyst.

Mr. Wolf is a Research Analyst for the small cap growth strategy.

He is a member of the Value Investor Club, LA CFA Society, and American Chemical Society.

Mr. Wolf graduated from Franklin and Marshall College (B.A. in Chemistry and Economics) and UCLA Anderson School of Management (M.B.A.). He holds the CFA designation.

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. In addition, he is 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.).

Prior to joining the Strategic Income team at the end of 2023, John Sheehan spent five years as a portfolio manager for the total return strategy. Before that, he 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 strategic income strategy.

Mr. Sheehan graduated from Georgetown University (B.A. in Economics). Mr. Sheehan holds the CFA designation and is a member of the CFA Society of San Francisco.

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).