Oppenheimer announced the promotion of David Fleming to a leadership role within its Private Client Division, as the firm continues to expand its wealth management business.
Fleming, who will be based in New York, will report to Ed Harrington, Executive Vice President and Head of the Private Client Division. In his new role, he will oversee branches in select markets, working closely with regional and branch managers to drive business development, enhance team performance, and support advisor recruiting efforts.
As part of the leadership transition, Ron Guidi has been appointed Branch Manager in San Francisco, succeeding Fleming. Guidi will be responsible for managing day-to-day operations and expanding the firm’s presence in the Bay Area.
The appointments come amid continued growth in Oppenheimer’s Private Client Division. In 2025, the firm’s Wealth Management segment generated more than $1 billion in revenue, with assets under management reaching $55.2 billion and assets under administration totaling $143.3 billion.
Fleming joined Oppenheimer in 2022 and previously led the firm’s San Francisco office, where he drove significant growth in both revenue and assets while expanding the advisory team. He brings more than 30 years of industry experience, including roles at firms such as Stifel, Barclays, Deutsche Bank, Credit Suisse, and Donaldson, Lufkin & Jenrette.
Guidi brings over 26 years of experience advising high-net-worth clients and executives, with prior roles at Rockefeller Capital Management, Deutsche Bank, and Robertson Stephens.
The leadership changes reflect Oppenheimer’s continued investment in talent and infrastructure to support advisor growth and deepen client relationships across key markets.
KEY QUOTES:
“Dave has done an outstanding job leading our San Francisco office, and this promotion reflects the confidence we have in his ability to shape the next chapter of growth across the Private Client Division. He brings credibility with advisors, strong business judgment, and a clear understanding of what it takes to build high performing branches and advisory teams. At the same time, we are excited to welcome Ron, a seasoned leader with deep roots in the Bay Area, and we believe he will continue the momentum Dave created in that office.”
Ed Harrington, Executive Vice President And Head Of The Private Client Division, Oppenheimer
“While I’m excited to take on this new role, I’m also pleased to welcome Ron to Oppenheimer and know the San Francisco branch will be in excellent hands. Having worked with Ron in the past, I saw firsthand that he is a smart, responsive, and highly respected leader who shares our focus on client success, advisor growth, and culture. He knows the Bay Area well, and I’m confident he will be a great fit for both the branch and the broader community.”
David Fleming, Private Client Division Leader, Oppenheimer
“The continued strength of our Private Client Division is a direct result of the quality of our advisors and the leadership within our branches. These changes reflect our commitment to the firm’s culture and our investment in the people needed to support our advisors, and deepen our relationships in key markets.”
Robert Lowenthal, President And Chief Executive Officer, Oppenheimer
