William J. Mostyn, III, Assistant Treasurer

Bill joined the CFCS Board of Directors in 2012 and served as Board President from 2015 to 2018. He is currently an adjunct professor at Northeastern University School of Law. He is a former Senior Vice President of TIAA-CREF, the financial services firm focused on higher education; Deputy General Counsel and Corporate Secretary of Bank of America Corporation; and Deputy General Counsel, Corporate Secretary and Chief Governance Officer of The Gillette Company. His legal experience was focused on securities laws, corporate law, mergers and acquisitions and corporate governance. He graduated from College of the Holy Cross in Worcester, MA, and Northeastern University School of Law in Boston, MA.

Bill is the former Chairman of the Board of the Society of Corporate Secretaries and Governance Professionals that represents over 3000 U.S. Companies. He is currently on the advisory council of the Society’s Eastern New England Chapter. He served in the U.S. Navy from 1969 to 1971. Bill is the father of two sons and lives with Sandee, his wife for forty years, in Marshfield, MA. Bill brings to the board a deep experience in corporate law, organizational governance, corporate charitable programs and financial oversight.