Mr Gidney will assist the growth and development of the Sydney office, provide strategic advice to the Argonaut Executive Leadership Team and Board, and support select client engagements.
Mr Gidney brings more than 30 years’ experience advising Australian and international boards and CEOs on strategy, mergers and acquisitions, capital markets transactions and complex corporate situations. He has advised domestic and global clients across natural resources, infrastructure, property, energy and diversified industrial sectors. Mr Gidney is also a member of the Australian Takeovers Panel.
Mr Gidney joins Argonaut following a distinguished career across leading global investment banks and independent advisory firms. Most recently, he served as Senior Adviser at Wilsons Advisory and as Vice Chairman, Banking, Capital Markets & Advisory at Citi. Prior to Citi, he was a Senior Adviser and Vice Chairman at Greenhill, and spent more than a decade with JPMorgan Australia, where he headed M&A and played senior roles on many of the country’s largest transactions.
Alongside his advisory career, Mr Gidney currently holds senior non‑executive and governance roles, including as Non‑Executive Chair of FNZ (APAC) and as a Non‑Executive Director of Dexus Funds Management Limited. These roles provide him with substantial practical experience in risk management, governance oversight and board‑level strategic decision‑making.
Mr Gidney’s appointment represents a further step in Argonaut’s talent‑led strategic growth initiative and reflects the firm’s ongoing investment in building senior advisory capability on the east-coast, as demand continues to grow for independent, high‑quality corporate advice.
Commenting on the appointment, Argonaut’s Executive Chairman & Head of Equity Capital Markets, Eddie Rigg, said:
“We are delighted to welcome Jon to Argonaut. Having known Jon for many years, I have long admired his judgement, professionalism and depth of experience.
“He brings exceptional expertise from some of the world’s leading advisory institutions, together with strong board‑level insight that aligns closely with Argonaut’s values and long‑term strategy. This appointment reflects our disciplined approach to growth and our focus on building a senior team in Sydney with the experience required to advise resource clients through their most strategically significant decisions.”
Argonaut’s Chief Executive Officer & Head of Corporate Finance, Greg Southee, added:
“Jon’s experience across large‑scale M&A and strategic advisory materially enhances our east‑coast capability, particularly at the larger end of the market. His appointment strengthens our ability to support clients from Sydney and across Australia with senior, trusted advice.”
On his move to Argonaut, Mr Gidney said:
“Argonaut’s leadership, deep natural resources expertise and track record of quality transactions in the sector were key factors in my decision to join the firm. As someone originally from Perth, I am excited by the opportunity to join a great Western Australian firm, focused on continued growth of the business along the east-coast.”
