Team

John Osterweis founded Osterweis Capital Management to serve the portfolio needs of high-net-worth investors, foundations, and endowments. He is currently Chairman of the firm as well as a member of the firm’s Management Committee and a co-lead Portfolio Manager for the core equity, growth & income, and flexible balanced strategies.

After graduating from business school, John 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, John served as Director of Research for two firms and managed equity portfolios for over ten years. In late 1982, John decided to devote himself full time to his portfolio management activities, and in April of 1983 launched Osterweis Capital Management.

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

Outside of his work, John is an active supporter of our community. He 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 also enjoys horseback riding and other outdoor activities.

Carl Kaufman serves in several key roles for the firm. He has managed the Osterweis Strategic Income Fund since its inception and serves as the Managing Director of Fixed Income, as well as a co-lead Portfolio Manager for the Osterweis Growth & Income Fund. Additionally, in his role as Co-President & Co-CEO he oversees key investment matters and is an integral part of the firm’s Management Committee.

He joined Osterweis Capital Management in 2002, after nearly 24 years at Robertson Stephens and Merrill Lynch.

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

Outside his professional endeavors, he enjoys playing classical piano and actively contributes to the community as a member of the Board of Trustees for the San Francisco Conservatory of Music, supporting the arts and enhancing the cultural fabric of the SF Bay Area. Additionally, he enjoys playing golf, an activity that continually challenges his patience and precision.

Catherine Halberstadt serves as the firm’s Co-President & Co-CEO. In that role she is responsible for overseeing functions related to the firm’s non-investment matters including Operations, Compliance, Finance, Technology, Client Relations, Business Development, Marketing, and Human Resources. Catherine is also an integral part of the firm’s Management Committee. She focuses on strategic planning and operational excellence to ensure our clients experience the highest level of service.

She joined Osterweis in 1994 as part of the Operations team. Since then, she has progressively assumed more responsibility at the firm, including in the roles of Chief Operating Officer and Chief Financial Officer. Prior to joining Osterweis, Catherine worked in the Treasury Department at Westamerica Bank.

Catherine graduated from the University of San Francisco (B.S. in Business Administration). She has served on the Board of Governors for the Investment Adviser Association (IAA) since 2020. Outside of work, she enjoys water and snow sports such as sailing, surfing, and snowboarding. She also loves to cook, spend time with family, travel, read, and listen to podcasts.