Gregg specialises in complex commercial disputes, including class actions, across a range of sectors, particularly the energy, banking and aviation sectors.
Based in Melbourne, he has previously practised from our London and Tokyo offices. He has extensive experience of heavyweight litigation, usually with a cross-border element, as well as international arbitration and regulatory investigations and litigation.
Gregg has a particular focus on class action litigation and led the firm's class action practice in London prior to his move to Melbourne. He is a co-editor and author of the leading English practitioner text on class actions, Class Actions in England and Wales, published in 2018 by Sweet & Maxwell, and a contributing author to the 3rd edition of Class Actions in Australia, due for publication by Thomson Reuters in 2021.
Gregg is an accredited mediator with the Centre for Effective Dispute Resolution.
Gregg's experience includes advising:
- National Australia Bank in relation to an insurance claim in the Federal Court arising out of a customer redress scheme relating to the sale of interest rate hedging products
- the shareholders of Optal in an expedited claim in the English Commercial Court relating sale of the business where the buyer sought to rely on the SARS-Cov-2 pandemic as a MAE
- PricewaterhouseCoopers in defending multiple funded shareholder class actions in relation to the collapse of Vocation Limited
- Vocus in defending a funded shareholder class action in the Federal Court relation to alleged non disclosures concerning earnings guidance
- Murray Goulbourn in defending multiple class action proceedings relating to alleged breaches of continuous disclosure obligations and fiduciary duties in respect of disclosures made in a Product Disclosure Statement
- Société Générale in relation to a $1.5 billion claim in the English Commercial Court by the Libyan Investment Authority in relation to a series of trades where there were allegations of bribery and intimidation
- Iveco and Fiat Chrysler in relation to follow-on damages claims stemming from the European Commission’s settlement decision in Trucks
- BP, ENI, Repsol Sinopec and JX Nippon in English Commercial Court proceedings under various gas sales agreements arising out of the prolonged shut-in of a North Sea field
- a Japanese consortium in a LCIA arbitration with satellite offshore litigation in a dispute relating to a mining project in Central Asia
- a US energy company in relation to an expert determination, an arbitration and parallel court proceedings relating to the re-determination of equity interests in a unitised oil field in West Africa
- a British oil exploration company in relation to multi-jurisdictional court and ICC arbitral proceedings concerning disputed rights in an oil concession in Central Africa
- a Japanese trading company in commodity trading disputes in multiple jurisdictions, including an ad hoc arbitration in India
- AerCap in respect of the repossession of aircraft and ensuing English Commercial Court litigation, with parallel proceedings in several other jurisdictions, arising out of the default under and termination of various lease agreements
Gregg was educated at King's College London (LLB), Keble College, Oxford (BCL, MPhil) and Panthéon-Sorbonne, Paris (LLM). Prior to joining the firm, he practised at the bar in England for several years. He became a partner in the firm’s London office in 2014 and moved to Melbourne in 2019. Gregg is admitted in Australia and England & Wales. He is fluent in French.