Siegfried M. Büttner

Partner Capital Markets
Kirkland & Ellis International LLP


Siegfried M. Büttner is a corporate partner in the Munich office of Kirkland & Ellis International LLP.

His practice focuses on corporate and capital markets law and includes, in particular, capital markets transactions. He advises issuers, financial investors and underwriters on a broad range of public offerings and private placements of equity and debt securities, including initial public offerings (IPOs), rights offerings, accelerated primary and secondary offerings of equity securities, and the issuance of convertible and general corporate bonds. He also advises on public takeovers and general capital market matters. Handelsblatt Best Lawyers lists him among the “Ones to Watch” 2023 in Germany.

FINANCE Podcast: Im Fokus – Capital Markets Outlook: Legal trends that shaped the last years and what to expect in 2022


Thought Leadership


Exchange offers in the tension area of legal systems, Börsen-Zeitung 8 January 2022, p. 9

Exchange Offers — Continuously High Hurdles for German Companies, originally published in PLATOW Legal + Finance (in German language) 23 December 2021 (find the English shortened version here)

Chapter on German Securities Law, in: Panasar/Boeckmann (eds.), European Securities Law, 3rd ed. 2021 (together with Stephan Pachinger and Kyle Miller)

General Amnesty in Capital Markets Law?, ZIP 38/2016, p. 1801 (together with Prof. Dr. Lars Klöhn, LL.M., Harvard)

Financial Journalism and the New Market Abuse Regulation (MAR) – Background, Content and Practical Significance of Art. 21 MAR –, WM 47/2016, p. 2241 (together with Prof. Dr. Lars Klöhn, LL.M., Harvard)


Admissions & Qualifications

  • 2016Germany


  • German
  • English
  • French
  • Italian


  • Higher Regional Court of HamburgSecond State Examination2014
  • Bucerius Law SchoolFirst State Examination2011