Nine Arrested in Major Swedish Insider Trading Case

On September 2, 2025, Swedish authorities arrested nine individuals on suspicion of serious insider trading involving significant stock transactions linked to acquisitions of Tethys Oil and Fortnox. According to the Economic Crime Authority (Ekobrottsmyndigheten), these activities generated illicit profits exceeding 70 million kronor, marking a sophisticated and unprecedented scale of insider trading in the country.

The arrests occurred in the Stockholm area following a lengthy investigation and surveillance operation. Authorities executed a raid during which electronic equipment associated with the suspects was seized. The investigation focused on extensive trading activities that took place in the fall of 2024 and spring of 2025, immediately ahead of public announcements regarding the companies' acquisitions.

"The scope of this case is astonishing and unprecedented," stated Jonas Myrdal, the deputy chief prosecutor and lead investigator. He highlighted the coordinated nature of the insider trading among a large group of interconnected suspects, raising concerns about systemic issues within Sweden's financial markets.

The insider trading allegations come at a time when Swedish authorities are increasingly vigilant in cracking down on such illegal market behavior. The repercussions of this case extend beyond the individuals involved, reflecting broader systemic risks associated with financial misconduct in publicly traded companies. As the investigation progresses, further details regarding the suspects and their trading strategies are expected to emerge.

The outcome of this case could lead to stricter regulations and enforcement actions aimed at preventing future instances of insider trading in Sweden’s financial landscape.