Mr. Horn founded Keystone Private Wealth in July 2026 to provide investment consulting services to family offices, high-net-worth families, foundations, and endowments.

Prior to establishing Keystone Private Wealth, in 1998 Mr. Horn founded Persimmon Capital Management, LP, to serve high-net-worth families, foundations, and endowments. In 1999, Mr. Horn also founded Persimmon Research Partners, Inc., doing business as ADVISORport, Inc. ADVISORport provided institutional investment manager research and due diligence, as well as technology and operational infrastructure outsourcing services to enterprise financial services companies such as Charles Schwab, SunTrust, and Nationwide. Under Mr. Horn’s leadership, ADVISORport, Inc. grew to over $40 billion in assets under administration. In 2006, ADVISORport was acquired by PFPC Worldwide, Inc.

In 2012, Mr. Horn founded AlphaHedge, LLC, a multi-manager hedge fund managed account platform developed to deliver long-short equity hedge fund strategies to advisory firms in a separately managed account format. AlphaHedge was subsequently sold in 2018.

Prior to the formation of Persimmon, ADVISORport, and AlphaHedge, Mr. Horn served as President and Co-Founder of Ashbridge Investment Management, Inc., where he developed and directed the firm’s investment consulting capabilities for a family holding company. During his tenure, assets under supervision grew to nearly $1 billion. Previously, Mr. Horn was a Vice President at Mellon Bank, leading the Personal and Family Division of Mellon Private Capital Management, the firm’s high-net-worth investment management group within the Trust Department. Earlier roles included leading the asset management group at Mid-Atlantic Companies and serving as a Vice President in the real estate investment banking division of American Express. Mr. Horn holds a Bachelor’s degree and an MBA from the University of Wisconsin.