The Market Abuse Regulation (MAR), which is binding for all European Member States since 3.7.2016, has introduced an extensive reform of the market abuse regime. The MAR is part of an overall package, which should establish a uniform juridical framework and contribute to a larger market integrity. Likewise, the regulation takes into account new juridical, commercial and technological developments. The direct applicability of the MAR in Member States national law brings the full harmonization of capital market law one step further. Because of the extensive changes, Austrian law had to changed and modified to the new regulations. This was done through the amendment of the Börsegesetz 1989. Key mechanisms of the MAR include insider trade and the prohibition of market manipulation. To ensure an effective fight against insider trade and the prohibition of market manipulation, the MAR introduced an extension of the intervention power of national supervising authorities and a drastic exacerbation of the sanctions.