Allan joined Simmons & Simmons LLP as a partner in August 2008 from Bear Stearns, where he was a Managing Director Principal and head of the legal team covering the equity and fund derivatives, prime brokerage and asset management businesses in Europe and the Middle East.

He previously worked for three years in the equity derivatives legal team at JPMorgan Chase and for five years in the derivatives and financial markets group at Clifford Chance LLP. He qualified as a barrister in 1995, as a solicitor in 1998.

Allan is a regular speaker and panellist at external conferences organised by ISDA, AIMA, the Investment Association and other industry bodies on a variety of topics on derivatives and derivatives regulation.

He is praised in Chambers and Partners 2018 as “a leading practitioner in hedge fund trades and financial market trading” and in Legal 500 2018 as a “recognised derivatives specialist”.

Allan specialises in prime brokerage, derivatives, derivatives regulation and structured products. He advises asset managers (both hedge and institutional) on all aspects of their trading relationships with market counterparties, including prime brokerage, derivatives and other trading agreements. He also provides specialist advice to clients in relation to derivatives regulation in Europe (EMIR), securities financing regulation (SFTR), benchmarks regulation (BMR) and MiFID2.

In addition, he advises investment banks and other corporate and financial institutions on a full range of derivative products in over the counter, securities and fund wrappers, focusing particularly on tailored derivative transactions, such as corporate equity derivatives, structured repos and structured credit derivatives.

He has extensive in house experience, having spent over seven years of his career as senior in house legal counsel at two leading US investment banks.

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Contact details


Areas of Practice

Banking and Finance
  • Year Qualified



    1994-1995 Bar Vocational Course, Inns of Court School of Law
    1991-1994 MA Law, St John’s College, Cambridge University
    1981-1991 Colston’s Boys School