Mark joined Gresham in 2011 as Senior Advisor and is based in the Sydney office.

He has spent more than fifty years in banking and corporate finance and retired as Deputy Chairman of Macquarie Bank in 2007 and as Chairman of Macquarie Infrastructure Group in 2010. He has also served as Chairman of AGL Energy, Alinta Energy and Guinness Peat Group, and been a Director of Westfield Group and One Market Limited.

Previous affiliations include Chairman of the ASIC External Advisory Panel, Chairman of the US Study Centre Foundation at Sydney University, Chairman of the Advisory Board of the APEC Study Centre at RMIT University and director, AsiaLink. He has recently retired from the Board of Governors of the Institute for International Trade at the University of Adelaide, and the Advisory Council of SMART Infrastructure Facility at the University of Wollongong. He is Chairman of Dateline Resources, a junior gold development company; and a Non-Executive Director of Stonehouse Corporation, a funds management business.

Mark was Chairman of the Australian Financial Centre Task Force in 2009-10, an Australian Government initiative directed towards ensuring efficiency and competitiveness in the financial services sector.  From 2002-2013 he was one of the three Australian representatives on the APEC Business Advisory Council (ABAC) and Chairman of the APEC CEO Summit in Sydney in 2007. He was Chairman of the Australian Strategic Policy Institute from 2005 to 2008.

Mark was awarded the Order of Australia (AO) in 2010 and is a Commander of the Order of the Crown (Tonga) and a Life Governor of the Victor Chang Cardiac Research Institute.

Mark holds a Bachelor of Laws (Hons.) from the University of Melbourne, and an MBA from Harvard. He is a Fellow of the AICD.