Henry Mostyn

Cleary Gottlieb Steen & Hamilton (London)
Lawyer (Associate)

Henry Mostyn is an associate based in the London office. Mr. Mostyn’s practice focuses on competition law. Mr. Mostyn joined the firm in 2012. In 2011, he completed pupillage at 4 New Square Chambers, Lincoln’s Inn. As an undergraduate he read Mathematics at Pembroke College, Oxford. He completed the Graduate Diploma in Law at BPP Law School, where he achieved a Commendation. Mr. Mostyn is a member of the Bar in England and Wales. His native language is English.

Distinctions

Linked authors

Cleary Gottlieb Steen & Hamilton (London)
Roschier (Helsinki)
Ban S Szabo & Partners (Budapest)
University of Salento
University of Mannheim
Barcelona GSE
University College London
Latham & Watkins (London)

Articles

4728 Bulletin

Paul Stuart, John Messent, Henry Mostyn, Romi Lepetska The UK Government lowers the merger notification threshold for specific sectors including artificial intelligence, cryptographic authentication and advanced materials

17

On 21 July 2020, the Enterprise Act 2002 (Share of Supply) (Amendment) Order 2020 and the Enterprise Act 2002 (Turnover Test) (Amendment) Order 2020 came into force. Both Orders amend the jurisdictional thresholds for mergers in certain sectors. Under the new rules, the thresholds have been (...)

Paul Gilbert, Henry Mostyn, Romi Lepetska, Richard Pepper The UK Supreme Court dismisses the two largest payment processing networks arguments on the basis that their multilateral interchange fees restricted competition but upholds grounds of appeal concerning the application of the “passing on” defence (Sainsbury’s / Visa / MasterCard)

24

On 17 June 2020, the Supreme Court handed down a much anticipated judgment concerning the default multilateral interchange fees (MIFs) set by Mastercard and Visa (together, the Appellants). The case considered appeals relating to three separate damages actions brought by retailers against the (...)

George S. Cary, Maurits Dolmans, Bruce Hoffman, Thomas Graf, Leah Brannon, Richard Pepper, Henry Mostyn, Alexis R. B. Lazda, Savannah Haynes, Kristi Georgieva, Jan Przerwa Exploitative abuses, price gouging & COVID-19: The cases pursued by EU and national competition authorities

4118

The COVID-19 pandemic has led to extreme demand and price volatility for certain products, as well as fluctuations in firms’ costs. As firms struggle to manage these changes, agencies are aggressively seeking to show they are preventing consumer exploitation—for example, as a result of (...)

5629 Review

Frédéric Jenny, Damien Neven, Jacques Buhart, David Henry, Thomas Funke, Mathew Heim, Catarina Midões, Nicholas Levy, David R. Little, Henry Mostyn, Ioannis Lianos, Massimo Motta, Martin Peitz, Cristoforo Osti, Almos Papp, Christian Wik, Kristian Hugmark, Julia Vahvaselkä, Antoine Winckler, Thierry Boillot Which competition and industrial policies for the new EU Commission after Siemens/Alstom?

5629

This series of articles presents different points of view about the priorities of the newly established Commission on competition policy in Europe in the aftermath of the decision prohibiting the Siemens/Alstom merger and of the manifesto published by French and German governments. These (...)

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