
06 January 2026Publication
CSSF Circular 25/901
On 19 December 2025, the CSSF issued Circular 25/901, consolidating and modernising supervisory guidance for SIFs, SICARs and Part II UCIs.
Regulatory risk has become one of the key business concerns for corporates and financial institutions with its potential for direct damage both to a company’s financial well-being and to its brand or reputation. Investigatory powers have become more draconian and regulators are better funded. Criminal sanctions are more common-place and personal liability is imposed on directors and senior managers.
Simmons & Simmons has one of the leading regulatory practices in Europe and Asia with expertise in each of our core sectors: asset management & investment funds, financial institutions, life sciences and technology, media and telecommunications (TMT) .
We are one of the very few firms that has the expertise to advise on the full spectrum from the detail of compliance with technical requirements under industry rules, through to investigations and, in extreme cases, to criminal liability.
Advising clients which include both major financial institutions or companies and government departments or regulators gives us a valuable perspective and insight not widely available.
The ability to provide this breadth of advice across our network of offices in Europe, the Middle East and Asia makes our practice stand out from our competitors.
Advising Civil Aviation Authority in connection with judicial review proceedings initiated by easyJet concerning the Authority's decision in setting the price cap for charges at London Gatwick from 2008 to 2013.
Representing Dura Vermeer, one of the largest Dutch building companies, in its appeal to the General Court in the Dutch bitumen cartel case.
Acting for a major Japanese pharmaceutical company on the regulatory, commercial and trade mark aspects of an agreement following the citation by the EMA’s Invented Name Review Group of a marketed product with a similar name, as a cross-border team through our Tokyo, London and Milan offices.
If you have any questions, contact a member of the Regulation team for assistance:

06 January 2026Publication
On 19 December 2025, the CSSF issued Circular 25/901, consolidating and modernising supervisory guidance for SIFs, SICARs and Part II UCIs.

06 January 2026 Publication
CRD6, Article 21C Insights and Transposition Developments – December 2025
_11zon.jpg?width=380&width=380&format=webply&auto=webp)
05 January 2026 Publication
Entering 2026, we highlight eight key regulatory changes set to shape Hong Kong’s financial market after a year of new initiatives.

02 January 2026 Publication
The Financial Services and the Treasury Bureau and the Hong Kong Securities and Futures Commission introduce new licensing regimes for virtual asset services

29 December 2025 Publication
FCA consults on new rules and guidance to strengthen fund liquidity risk management