LAWYER PROFILE
Guy Antrobus

Guy Antrobus

Global 2026

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Ranked in 2 practice areas

About

Provided by A&O Shearman

Practice Areas

Guy is UK Co-Head of International DCM, Derivatives & Securitization.

Guy is head of our London Derivatives and Structured Finance team.

On the transactional side, Guy has a particular focus on CRT/SRT risk transfer transactions. More broadly, Guy advises on all manner of structured products, including TRS, fund financing, financial guarantees, credit derivatives, risk retention financings, hedging and stock lending/repo.

On the advisory side, Guy’s practice has a particular focus on issues relating to the Financial Collateral regime and regulatory capital. He is the author of a number of industry and client-specific legal opinions on netting, insolvency and collateral enforceability. He has led on numerous matters relating to banks implementation of Initial Margin and was the lead English lawyer advising ISDA on the updated Phase 1 Initial Margin Credit Support documentation resulting from the WGMR initiative.

Chambers Review

Provided by Chambers

Chambers Global Guide

Capital Markets: Derivatives - UK

Band 3
Band 3

Individual Editorial

Guy Antrobus is co-head of the global financial markets group at A&O Shearman. He is noted for his particular expertise on cross-border derivatives work. He regularly represents global financial institutions.

Capital Markets: Structured Products - UK

Band 3
Band 3

Individual Editorial

Guy Antrobus is co-head of the global financial markets group at A&O Shearman. He is noted for his particular expertise on cross-border derivatives work. He regularly represents global financial institutions.

Strengths

Provided by Chambers

  • Guy is excellent to work with. He always provides great service with respect to complex technical legal advice which marries up with excellent commercial awareness.

    Capital Markets: DerivativesChambers Global Guide
  • Guy is an excellent legal mind and his ability to navigate difficult situations is a definite plus.

    Capital Markets: DerivativesChambers Global Guide

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