»Activist Short Selling - Limits of Admissibility after the Short Selling- and Market Abuse-Regulation«: Activist Short Selling is widely discussed in literature and public not only since the case of "Wirecard". Starting from the economic value of this business model, this study analyzes its current legal framework and reviews, how the statutory law matches with the economic evaluation. Based on this approach, this work wants to provide a distinction with the use of the legal guidelines between the positive and negative forms of this business model.