One Oak Capital Management, LLC, a registered investment adviser providing fixed income solutions to individuals, institutions, and RIAs, has appointed Joseph H Marren as its Head of Research. Marren will oversee the firm's research strategy across all sectors and asset classes, including identifying opportunities for launching new separately managed accounts and funds. Marren joined One Oak Capital Management in November 2024 following a transaction that established One Oak Capital Management as general partner of two KStone funds-of-hedge-funds. He previously served as President, Chief Executive Officer, and Chief Investment Officer of KStone Partners LLC, where he specialized in managing funds-of-hedge funds primarily focused on the municipal securities market. Prior to co-founding KStone Partners, Marren spent 23 years leading business development within the Mergers & Acquisitions departments at Citigroup, Credit Suisse, Donaldson, Lufkin & Jenrette, and Sagent Advisors. He has authored two books on M&A published by Dow Jones Irwin and taught M&A as an adjunct professor at NYU's Stern School of Business. He has also guest lectured at Fordham Law School, Columbia Law School, and Columbia Business School.