Mr.  Aronstein joined MidOcean as a Management Affiliate with over 25 years of investing experience, including 19 years of direct private equity experience. Prior to joining MidOcean, Mr. Aronstein was at BelHealth Investment Partners, a healthcare-focused private equity firm, where he was responsible for originating, structuring and executing fund transactions. He previously served as a Managing Director and Co-Head of Private Equity Investing and Mergers and Acquisitions at The Marwood Group, where he led transactions and worked extensively with lower middle market healthcare services companies.

Previously, Mr. Aronstein was a Managing Director at The Beekman Group, a private equity firm focused on investing in lower middle market companies, where he initiated a focused healthcare investing effort, concentrating in thirty healthcare sub-sectors. Prior to that, Mr. Aronstein was a Partner of Odeon Capital Partners, a private equity fund, where he served as a director of five companies. He began his private equity investing career at EXOR America and Morgan Lewis Githens & Ahn, where he focused on making control investments in middle market companies. Mr. Aronstein also served as the Chief Financial Officer of The River Group, a consumer products company and as an investment banker at Merrill Lynch & Co. in their Merchant Banking and High Yield Finance groups.

  • Wharton School of the University of Pennsylvania, B.S., Economics with a concentration in Finance, with honors
  • Harvard Business School, M.B.A.

Marc Aronstein
Management Affiliate