EU Market Abuse Regulation Developments—May 2026

There have been several notable developments under the EU Market Abuse Regulation (MAR) in recent months. This article provides a brief overview of the key changes and their practical implications.

What's new?

The European Commission adopted two Delegated Regulations on April 8, 2026, implementing amendments to the Market Abuse Regulation, last amended by the EU Listing Act:

• A Delegated Regulation on disclosure of inside information in protracted processes and delay of disclosure, which establishes a non-exhaustive list of (i) final events or circumstances in protracted processes requiring disclosure (and the timing of such disclosure), and (ii) situations where information an issuer intends to delay is “in contrast” with its most recent public announcement on the same matter.