Our Executive team
Managing Director and CEO, Executive Director
Mr Stevens was appointed as Managing Director and CEO of ASX Limited on 1 August 2016. He was an independent non-executive director of ASX from December 2013 until his appointment as CEO.
Mr Stevens is also a director of ASX’s clearing and settlement licensees and their intermediate holding companies.
Mr Stevens has broad experience working in capital and derivatives markets. He is familiar with the challenges and opportunities presented by Australia’s growing pool of funds under management, and the increasing reach of global regulation.
Mr Stevens was the Chief Executive Officer and Managing Director of Challenger Limited until February 2012, having previously held senior roles overseeing Challenger’s capital, risk management and strategy.
Prior to Challenger, Mr Stevens served as a Senior Managing Director at Zurich Capital Markets Asia and was a Partner at Bankers Trust, where he had responsibility for the Australian derivatives and global metals and agricultural commodity derivatives businesses. He was a director of SocietyOne Holdings Pty Limited between November 2014 and August 2016.
Chief Financial Officer
BBus, CPA, FGIA
Mr Aziz has been Chief Financial Officer of ASX since July 2010. He is responsible for ASX’s Finance, Corporate Strategy, Investor Relations and Facilities functions.
Mr Aziz was previously Group Financial Controller at ASX, and, prior to the ASX/SFE merger, held the same role at SFE Corporation Limited since April 2000.
Mr Aziz has held various senior finance positions within the finance industry. He was Chief Financial Officer and Company Secretary of Austrapay Limited, a company providing electronic and paper based payment services within financial services.
Prior to that he held a number of positions within The Chase Manhattan Bank (now known as JP Morgan) covering financial control, financial accounting and management reporting within the wholesale banking division and the central finance department. He is a non-executive Director of UWS College Pty Limited and Chair of its Audit Committee.
Chief Strategy Officer
Mr Beaton was appointed Chief Strategy Officer in March 2017 to help develop, drive and align ASX strategy.
Prior to joining ASX, Blair was Head of Strategy and M&A at Challenger Limited. He has more than 25 years of experience advising Boards and CEOs in Canada and Australia in organisations such as PwC, Challenger, and Capital West Partners, an independent Canadian corporate finance advisory firm.
Group Executive Human Resources
Lisa Green is Group Executive, Human Resources at ASX. She joined in August 2015 with primary responsibility for aligning employee and culture programs to meet ASX’s strategic objectives. She also has charge of diversity, learning and development, recruitment, performance management activities, compensation and benefit structures, HR policies and systems, and ongoing employee alignment and engagement initiatives.
Prior to joining ASX, Ms Green was Head of Global Vendor Management for JP Morgan’s Real Estate division, with responsibility for overseeing the simplification and outsourcing of various real estate functions globally.
Ms Green has extensive Human Resource experience within the financial services industry, and has held senior HR positions with Citigroup, Morgan Stanley, and JP Morgan, in Sydney and New York.
Deputy Chief Executive Officer
HND (Business and Finance)
Mr Hiom has been Deputy Chief Executive Officer of ASX since July 2006. He is responsible for the development of all ASX businesses, including Listings and Issuer Services, Trade Execution and Technical Services, Market Information Services, Derivatives and OTC Markets and Clearing and Settlement Services.
Prior to joining ASX as part of the ASX/SFE merger, Mr Hiom was Executive General Manager - Business Development for SFE, with responsibility for developing the Sydney Futures Exchange and Austraclear.
Mr Hiom had previously worked for the London International Financial Futures Exchange for nine years, holding a number of management roles within the Business Development and Information Technology divisions.
Chief Operating Officer
Grad. Dip in Financial Services, Grad. in Professional Management
Tim Hogben is the Chief Operating Officer of the Australian Securities Exchange (ASX). ASX as a company ranks amongst the top 10 exchange groups in the world. Appointed to the role in 2015, Tim has overall responsibility for the live service environment at ASX. This incorporates compliance with licensing conditions, execution of the organisations business strategy and delivering service excellence to customers. In addition to this he has responsibility for providing clearing and settlement services to Chi-X Australia, National Stock Exchange (NSX) and Asia Pacific Exchange (APX).
Mr Hogben has a thorough understanding of the operational, technical and regulatory complexities that drive trading, clearing and settlement from both a stock exchange and market user perspective. This has been formed through considerable experience in service delivery, operational workflows, system development, control environments and managing "1 in 20 year" events, plus roles as an investment accountant, senior analyst and in general management with a number of financial institutions in Australia.
More recently Tim has been exploring next generation technologies such as digital assets, distributed ledgers and block chain for potential use in financial services.
Tim is a graduate of the Harvard Business School (HBS), Australia Institute of Company Directors (AICD), Australian Institute of Management (AIM) and Financial Services Institute of Australia (FINSIA).
Group Executive and Chief Compliance Officer
SJD, MBA, LLB (Hons)/BJuris (Hons)
Mr Lewis has been Chief Compliance Officer of ASX since July 2010. He is responsible for overseeing the compliance and enforcement services to the various ASX Group entities that hold licences under the Corporations Act to operate markets or clearing and settlement facilities.
Mr Lewis is a leading authority in financial services regulation and compliance. He has practised law for over 30 years, specialising in financial services, mergers and acquisitions and corporate matters, and has held a number of senior management positions with law firms and as in-house counsel.
He has been a partner of the law firms Freehills, Atanaskovic Hartnell and Chang, Pistilli & Simmons and the General Counsel of Bankers Trust Australia Limited. He also teaches the course Compliance: Theory and Practice in the Financial Services Industry in the University of Sydney Law School post-graduate program.
Chief Risk Officer
B.Eng (Hons), GAICD
Mr Treleaven was appointed Chief Risk Officer on the 1st March 2017. Mr Treleaven has extensive experience in financial markets risk management across all asset classes and product types.
Prior to joining the ASX, Mr Treleaven was the Executive General Manager of Portfolio and Market Risk Management at the Commonwealth Bank of Australia. In this role he had responsibility for risk management oversight of the Global Markets and Group Treasury businesses and for group wide risk quantification for both regulatory and economic capital. He has extensive experience in derivative risk quantification and management, along with the related technology requirements. Mr Treleaven worked at the Commonwealth Bank from 2005 to 2017.
Before this, Mr Treleaven was a Managing Director at both Zurich Capital Markets Asia (2000-2003) and Bankers Trust Australia (1987-1999).
Mr Treleaven is a Graduate of the Australian Institute of Company Directors and served on the Board of Colonial Mutual Life Assurance Limited from June 2012 to January 2017.