Dr Wolf Bussian


Wolf is Managing Partner of Germany.

He focuses on litigation and investigations in the finance sector. He represents banks, asset managers, insurers, funds, accounting firms and other companies as well as governments and public institutions in disputes both in and out of court. He deals with disputes about complex finance products and tax driven transactions (for example cum/ex and cum/cum trades) on a regular basis. Wolf also frequently advises on capital market disputes and capital market-related professional indemnity claims as well as disputes in the field of payment services. He has special expertise with disputes resulting from bank crises (restructuring, resolution and insolvency) and equity substitution. He regularly deals with international civil procedural law issues (e.g. service, taking evidence and enforcement abroad), in particular in relation to the UK and the United States. 

A major focus of his work are investigations in the financial sector (e.g. relating to allegations of tax evasion, market manipulation, fraud or insider trading), typically in multi-jurisdictional teams from several practice groups (including regulatory, tax, corporate). Wolf leads internal investigations and advises on external investigations conducted by regulators (including a bank, BaFin, SEC, DOJ, FCA), tax authorities or criminal prosecutors. 

Wolf regularly publishes in legal journals as well as daily press on procedural, capital market and banking issues. He is recognised as leading expert for Finance Litigation and Investigations in legal directories. Legal 500 Germany 2019 praises his Finance Litigation Practice as market leading (Tier 1). Chambers Global recognises Wolf as leading expert for Finance Litigation since 2015 already, highlighting that he "enters the rankings on the strength of his excellent reputation for representing banks and financial institutions in litigation proceedings, often with a significant international aspect". JUVE 2017/2018 lists Wolf as "leading expert for investigations and disputes in the context of tax transactions like cum/ex and cum/cum deals". The Financial Times commended the firm as "standout" for a matter led by Wolf in the category "Innovation in dispute resolution" at the FT Innovative Lawyers Awards 2015. 

Published Work

  • Bussian W. (2016): „Lichtblick für Banken in Swap-Klagewelle“, Börsenzeitung 2. April 2016 
  • Bussian W., Loewer J. (2016): „Litigating Securities Class Actions”, Eisenberg (Hrsg.), LexisNexis, Kapitel zu “Non-US Class Actions - Germany” 
  • Bussian W., Windthorst J.E. (2015): “Europäische Bankenaufsicht und Legal Privilege – Weigerungsrechte bei Dokumentenanforderungen im Rahmen des einheitlichen Aufsichtsmechanismus (SSM)“, WM Zeitschrift für Wirtschafts- und Bankrecht 2011, pp. 2265 – 2271
  • Bussian W. (2015) "Handbuch Gesellschaftsrechtliche Streitigkeiten" (Corporate Litigation), 2. Aufl., Mehrbrey (Hrsg.), Carl Heymanns Verlag, Kapitel zu aktienrechtlicher Nichtigkeitsklagen, Freigabeverfahren, Eilverfahren, positiver Beschlussfeststellungsklage sowie Feststellungsklagen



Rechtsanwalt, Germany, 2004


Dr iur, Johann Wolfgang Goethe University, Frankfurt, Germany, 2007

LL.M, Boston University School of Law, USA, 2006

Second German Law Degree, 2004

First German Law Degree, 2002

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.