Mr. Lewellen has led key account development initiatives, building long-term relationships and practice development capabilities by recruiting and mentoring junior staff. He has executed large-scale, enterprise-wide transformations across the M&A cycle, handled carve-outs and divestiture execution programs, and served as lead Project/Program Manager for major company-wide improvement programs.

Mr. Lewellen led the Project Management Office (PMO) for a large, diversified financial group of companies. This focused on the group’s bank, particularly in response to the Office of the Comptroller of the Currency Consent Order, and remediation program. He specifically designed the IT program to establish more effective IT risk governance, prioritize the implementation of IT procedures with risk-based controls, and strengthen the risk culture to sustain strong IT risk management. Mr. Lewellen’s duties included revitalizing the program delivery to turn earlier program failures into successful submissions to the regulators.

As part of a $75 billion merger of two global industrial gas companies, Mr. Lewellen advised on the concurrent carve-out of four businesses and the stand-up of the divested North American business, leading the PMO and all functional separation activities. Mr. Lewellen led the PMO of a top-five global investment bank for three firm-wide regulatory compliance implementation programs supporting every major product area, business hub, and functional support unit.

Prior to joining A&M, Mr. Lewellen held key roles in finance, strategy, M&A, and program management at Citigroup for its Citi Holdings and Corporate M&A divisions. He was the top-ranked performer in both the Financial Management Associate and Financial Analyst programs at Citigroup.

Mr. Lewellen earned a bachelor’s degree in economics (finance and real estate concentrations) at The Wharton School of the University of Pennsylvania. He is a Trustee of the board for Trocaire College in Buffalo, New York.