Menu

Each member of the senior investment team at Stellex has significant experience advising, sourcing and executing private investments in North America and Europe.

This experience includes structuring and implementing buyouts, actively guiding businesses from the board room to the shop floor during times of uncertainty and conceiving and implementing plans for corporate renewal.

Matching its geographic investment criteria, Stellex team members are based in New York and London.



Ray Whiteman

Mr. Whiteman is a Managing Partner of Stellex. Before joining Stellex, Mr. Whiteman was a partner of The Carlyle Group and a managing director and co-head of Carlyle Strategic Partners. Prior to joining Carlyle in May 1996, Mr. Whiteman was a vice president and group head in the Leveraged Finance Department of Credit Lyonnais. Mr. Whiteman has also held several positions at both Citicorp and The Chase Manhattan Bank, N.A.

Mr. Whiteman is currently the chairman of MHI Holdings LLC and Morbark Holdings LLC. In the past Mr. Whiteman served on the board of Diversified Machine, Inc., RPK Capital Partners, LLC, Metaldyne, LLC, Stellex Aerostructures, Inc., Brintons Carpet Limited, DPG Aerospace and Service King, as well as the investment committee of RLJ Equity Partners, an affiliate of TCG and Robert L. Johnson. Previously, Mr. Whiteman has served on numerous Carlyle portfolio companies such as US Marine Repair, Norfolk Drydock and Shipping Company, Key Plastics, Breed Technologies and The Aerostructures Corporation.. He has also been a member of the Executive Committee of the National Symphony Orchestra of The John F. Kennedy Center and the Smithsonian’s National Museum of African Art.

Mr. Whiteman received his B.A. in political science from Williams College, where he was a Lehman Scholar, and M.B.A. from New York University Stern School of Business.


Michael Stewart

Mr. Stewart is a Managing Partner of Stellex. Before joining Stellex, Mr. Stewart was a partner of The Carlyle Group and a managing director and co-head of Carlyle Strategic Partners. Prior to Carlyle, Mr. Stewart was one of the original principals of Sunrise Capital Partners, L.P. Before that, Mr. Stewart spent 8 years at Houlihan Lokey in the Financial Restructuring Group.

Mr. Stewart previously served as director of Famous Brands International (Mrs. Fields), Permian Tank & Manufacturing, Inc., Sterling LLC, Diversified Machine, Inc., Metaldyne, LLC, Stellex Aerostructures, Inc., Airwalk International, LLC, Day Runner Inc., NEXIQ Technologies, Inc., Klenk Holz AG and Riverside Millwork Company.

Mr. Stewart received his B.S. in finance and entrepreneurial studies from the University of Southern California.


Karthik Achar

Mr. Achar is the head of Stellex’s European office. Before joining Stellex, Mr. Achar was head of the European investment team for Wayzata Investment Partners in London. Prior to joining Wayzata in 2008, Mr. Achar was an executive director at Morgan Stanley where he headed a team focused on direct lending to middle-market companies. Prior to joining Morgan Stanley, Mr. Achar was a senior analyst and credit fund manager with funds in London and Paris.

Mr. Achar received his B.A. in economics from Middlebury College and M.B.A. from Columbia Business School.


Mark Alter

Mr. Alter is the head of trading for Stellex. Before joining Stellex, Mr. Alter was a partner of The Carlyle Group and a founding member of its Leverage Finance Group, which successfully created and funded one of the first-ever $1B Market Value CDO in 1998. Assets traded in this fund included high-yield bonds, leveraged loans, mezzanine debt and private equity.

Prior to Carlyle, Mr. Alter was a founding member, managing director and head of Fixed Income Trading at PPM America, Inc., where he traded or had oversight of trading in investment grade and non-investment grade bonds, mortgage backed securities, US Treasuries and commercial paper. He was also a voting member on various committees, namely – Portfolio Management, Relative Value, and Asset Allocation. Mr. Alter has traded in excess of $20B in corporate assets during his career.

Mr. Alter received his B.A. in economics from Stonehill College and M.B.A. from Northwestern University.


Tony Braddock

Mr. Braddock is the Chief Financial Officer and Chief Compliance Officer for Stellex. Before joining Stellex, Mr. Braddock founded Oculus Resource Group, Inc. a family-office advisor focused on private investments in natural resources and real estate. Prior to Oculus, he was a founder and managing partner of Merel Capital Management LP, a principal investing group with offices in the US and Mexico. Preceding Merel, Mr. Braddock served as a vice president at Sunrise Capital Partners LP. Before that, he was an associate at Houlihan Lokey in the Financial Restructuring Group, and a workout officer at First Union National Bank, N.A.

Mr. Braddock currently is a director on the board of The Potomac Foundation in Washington, D.C.

Mr. Braddock received his B.A. in political science from The George Washington University and M.B.A. from Columbia Business School.


Catherine DeMarco

Ms. DeMarco is a member of Stellex’s investment team. Before joining Stellex, Ms. DeMarco was an Associate at TorreyCove Capital Partners.

Ms. DeMarco received her B.A. in Economics from the University of Southern California.


Carlos Gross

Mr. Gross is a member of Stellex’s investment team. Based in London, he is responsible for the sourcing, analysis, execution and monitoring of investments across Europe. Before joining Stellex, Mr. Gross was an analyst at Evercore in the Special Situations Group. Before that, he was an analyst at Bank of America Merrill Lynch in the Financial Institutions Group.

Mr. Gross graduated in Law and Business Administration from ICADE (E-3) in Spain.


Michael Livanos

Mr. Livanos is a member of Stellex’s investment team. Before joining Stellex, Mr. Livanos was a vice president at Barclays in the Restructuring and Finance Group. Prior to Barclays, he was an associate at Houlihan Lokey in the Financial Restructuring Group. Before that, Mr. Livanos worked at Citigroup’s Corporate Headquarters and at Citigroup International within the finance and corporate development functions.

Mr. Livanos received his B.S. in Computer Science and Business Administration from Carnegie Mellon University and M.B.A. from Columbia Business School. He is a member of the alumni advisory board of Carnegie Mellon’s School of Computer Science and remains active with Columbia Business School’s Private Equity Program.


Chris Novick

Mr. Novick is a member of Stellex’s investment team. Before joining Stellex, Mr. Novick was an analyst at Cowen and Company in the Financial Sponsors Group.

Mr. Novick received his B.A. in Economics from Trinity College.


Severin Schmidt

Mr. Schmidt is a member of Stellex’s investment team. Based in London, he is responsible for the sourcing, analysis, execution and monitoring of investments across Europe. Before joining Stellex, Mr. Schmidt was a vice president at TPG Special Situation Partners. Prior to that, Mr. Schmidt was a senior associate at Providence Equity Partners and he started his career as an analyst in the investment banking division of Morgan Stanley.

Mr. Schmidt previously served on the board of HSE24 (Germany) and the Ambassador Theatre Group (UK).

Mr. Schmidt received his master in business administration (Diplom-Kaufmann) from University of Mannheim, Germany.


Tracy Sigal

Ms. Sigal is the General Counsel and Director of Compliance for Stellex. Before joining Stellex, Ms. Sigal was the general counsel and chief compliance officer of Seneca Capital Investments, L.P., a hedge fund focusing on event driven strategies. Prior to Seneca, Ms. Sigal was a corporate associate at Kramer Levin Naftalis & Frankel LLP.

Ms. Sigal received her B.A. in English from the University of Pennsylvania and her J.D. from Fordham University.


Isaiah Sullivan

Mr. Sullivan is a member of Stellex’s investment team. Before joining Stellex, Mr. Sullivan was an analyst at J.P. Morgan in the Mergers & Acquisitions and Leveraged Finance groups.

Mr. Sullivan received his B.S. in Accounting from Bethune-Cookman University.


David Waxman

Mr. Waxman is a member of Stellex’s investment team. Before joining Stellex, Mr. Waxman was a principal at Quadrant Management and Stone Tower Capital’s private equity arm. Before that, Mr. Waxman was a vice president of The Carlyle Group. Prior to joining Carlyle, Mr. Waxman worked in the mergers, acquisitions and restructuring division of Morgan Stanley and was a founding member of the Grow Network, which was acquired by McGraw Hill.

Mr. Waxman previously served on the Board of Amquip Crane Rental LLC, AHN International LLC, Ford Models, Inc., VHSC Cement LLC and the Grow Network. He also sat on the Board of Directors of Rwanda Works, a non-profit dedicated to prosperity creation in Rwanda through health initiatives and economic development.

Mr. Waxman received his B.A. in history from Yale College.