Frank Mausen

Frank Mausen


Frank specialises in securities laws, capital markets regulation (including stock exchange listings and structured finance) as well as banking laws.

Clients include banks as well as corporate, institutional, supranational and sovereign issuers for whom he advises on debt and equity transactions and structured finance transactions including securitisation, structured products, covered bonds, IPOs, placements and buy-backs of securities, exchange offers, listing applications and ongoing obligations deriving from such listings. He has more than 20 years of experience in these areas. Frank is also the Market Intelligence and Know-How Partner at A&O Shearman in Luxembourg.

Frank regularly holds conferences on securitisation and other capital markets topics in Luxembourg and abroad. He is a member of the securitisation working group of ALFI (the Association of the Luxembourg Fund Industry) and the securitisation working group and the financial markets committee of the ABBL (the Luxembourg Bankers’ association). Frank is also a member of the Islamic Finance working group of Luxembourg for Finance (Luxembourg’s agency for the development of the Luxembourg financial centre) and has joined the Haut Comité de la Place Financière (a committee set-up by the Luxembourg Ministry of Finance aiming to modernise Luxembourg’s financial sector legislation). Frank is also the secretary of the Luxembourg Capital Markets Association (LuxCMA).

Frank served from 2018 to 2020 as Managing Partner of the firm in Luxembourg.


Representative matters

Multiple major international banks on the establishment of securitisation vehicles under the Luxembourg Securitisation Act 2004, and the setting up of fiduciary note programmes. 

Triton on the successful initial public offering of its portfolio company Stabilus, a global automotive and industrial supplier. The shares of Stabilus, a Luxembourg public limited liability company, were publicly offered in Germany and are admitted to trading on the regulated market of the Frankfurt Stock Exchange. 

The Luxembourg Government on the issue of the very first Sukuk certificates denominated in Euro. This was one of the very first Sukuk issuances by a western country. 

Floreat and Doric on the acquisition of three Airbus A330 aircraft on leases to various airlines. The acquisition was financed by the issuance of 10-year notes, the majority of which were structured as Sharia compliant notes.

Published Work

  • Co-author (2023) "Blockchain 2023 Practice Guide: Luxembourg Chapter", Chambers and Partners, June 2023
  • Co-author (2020) «Projet de loi 7637: une nouvelle ère DLT pour les titres dématérialisés », AGEFI Luxembourg, September 2020
  • Co-author (2019) "Taking Security over Luxembourg’s special limited partnership vehicle" in Butterworths Journal of International Banking and Financial Law [Vol. 34 – No. 3 March 2019], [p.175-179], [LexisNexis, UK]
  • Co-author (2023) "The Initial Public Offerings Law Review" (Luxembourg Chapter), Law Business Research

Speaking Engagements

Frank Mausen was speaker at the ALFI European Asset Management Conference (Securitisation panel), March 2019

Frank Mausen was a Speaker, TSI Kongress , September 2018

Frank Mausen was a speaker at the Societe Generale Securities Services in Luxembourg (Securitisation panel), October 2016 

Frank Mausen was a speaker at the IFN conference in Luxembourg, April 2016

Leadership Positions And Professional Affiliations

Chairman of the Securitisation working group of ALFI (the Association of the Luxembourg Fund Industry) 

Securitisation working group and the financial markets committee of the ABBL 

Islamic Finance working group of Luxembourg for Finance 

Haut Comité de la Place Financière



Admitted as avocat à la Cour, Luxembourg, 2004

Admitted as avocat, Luxembourg, 2002


LLM, University of Kent, Canterbury, 2001

Maîtrise, Business Law, University of Strasbourg, 2000


English, French, German, Luxembourgish
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.