Photo of Mary Wilks

Mary Wilks

Mary Wilks is an Antitrust partner and a member of the Firm's Private Capital industry group.

Mary advises on a broad range of EU and UK competition law issues, including multijurisdictional mergers, behavioral investigations, complex supply and distribution arrangements, and foreign investment controls including, notably, the UK’s newly adopted National Security and Investment Act. She advises clients on the competition aspects of transactions including M&A, equity investments, consortium transactions and secondaries.

Mary works across all sectors, with particular experience in consumer products, healthcare, TMT and financial services.

Mary regularly counsels clients on their engagement with the Competition and Markets Authority, the European Commission, and other prominent international enforcement agencies and regulatory authorities.

Mary Wilks has a reputation as an “excellent lawyer” who “plays a leading role on a range of high-profile cases.” According to sources, “She is always fully on top of the detail but also able to pull out the most important points for the case.

Prior to joining Proskauer, Mary was a counsel in the antitrust, competition and trade department at another leading law firm in London.

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK, EU and international financial services regulation.

Key Developments in July 2026:

United Kingdom

General Financial Services – Cross Sector

31 July – FCA Handbook: The FCA has published Handbook Notice 143, which sets out changes to the FCA Handbook made

The FCA’s proposed overhaul of the remuneration rules is relevant not only to regulated firms, but also to private capital investors buying, financing or selling them.

CP26/27 would replace the separate MIFIDPRU, AIFM and UCITS remuneration codes with a single regime. It would also remove much of the prescription around deferral, malus and clawback, guaranteed

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK, EU and international financial services regulation.

Key Developments in June 2026:

United Kingdom

General Financial Services – Cross Sector

29 June – Consumer Duty: The FCA has published a consultation paper (CP26/23) on changes to the scope and proportionality of the

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK, EU and U.S. financial services regulation.

Key developments in January 2026:

Asset Management / Wealth Management

2 February – Client Categorisation: The United Kingdom Financial Conduct Authority’s (“FCA”) consultation paper (CP25/36) on its proposals to amend the client

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK, EU and U.S. financial services regulation.

Key developments in December 2025:

Asset Management / Wealth Management

18 December – AIFMD 2.0 Liquidity Management Tools: European Securities and Markets Authority (“ESMA”) published an amended version of its guidelines on

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK, EU and U.S. financial services regulation.

Key developments in November 2025:

Asset Management / Wealth Management

17 November – Liquidity Management RTS: The European Commission has adopted Delegated Regulations containing regulatory technical standards (RTS) on liquidity management tools under the Alternative

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK and EU financial services regulation.

Key developments in October 2025:

Financial Advice / Wealth Management

31 October – FCA Consolidation Review: The UK Financial Conduct Authority (“FCA”) published its findings following a multi-firm review of consolidation in the

Welcome to the FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK and EU financial services regulation.

Key developments in September 2025:

30 September

FCA Priorities: The United Kingdom Financial Authority (“FCA”) published a speech given by Lucy Castledine, FCA Director of Consumer Investments, providing an update on the FCA’s

Welcome to Proskauer’s FinReg Monthly Update, a regular bulletin highlighting the latest developments in UK and EU financial services regulation.

Key developments in August 2025:

28 August

FCA Communications: The UK Financial Conduct Authority (“FCA”) published an update on its approach to simplifying supervisory communications, aiming to make its engagement with firms clearer