Bär & Karrer advises SIX in three
consecutive mergers involving SDX Web3
AG, SDX Group AG, SIX Digital Exchange
AG and SIX SIS AG

Following approval by the Swiss Financial Market Supervisory Authority, SIX has completed three consecutive mergers involving SDX Web3 AG, SDX Group AG, SIX Digital Exchange AG and SIX SIS AG. The final merger between SIX Digital Exchange AG and SIX SIS AG was completed on 30 April 2026. Through this strategic consolidation, SIX brings together its digital central securities depository ("CSD") and traditional asset services within a single regulated CSD, establishing the foundation for delivering integrated post-trade services across both asset classes.

The consolidated CSD is now also licensed to offer crypto custody solutions, enabling financial institutions to access digital asset servicing through the same institutional-grade infrastructure they rely on for traditional securities.

Bär & Karrer acted as legal, regulatory and tax advisor to SIX in this transaction. The team included Peter Hsu, Tiffany Ender, Philipp Theiler, Luiza Gjura (all Regulatory/M&A), Urs Kägi, Shu Zhang (both Corporate/M&A), Julia Eiholzer (Corporate/Notary), Susanne Schreiber, Anke Stumm, Lesia Tüchthuisen (all Tax), as well as Laura Widmer and Sandra Schaffner (both Employment). With respect to legal and regulatory matters, it closely collaborated with Björn-Gunnar Flückiger (LAWBEAR AG) who also acted as an advisor to SIX.