An ex-Janus Henderson analyst and her sister have been jailed for a £1m insider trading scam. Jessica Mang and her sister Samantha Suen used confidential information to make significant profits on trades in companies such as Apple, Amazon, and Visa. The scheme was uncovered by the Financial Conduct Authority (FCA), which found that Mang had been using her position as an analyst at Janus Henderson to access confidential information about upcoming deals and earnings reports. She then passed this information to her sister, who placed trades based on the insider information. The FCA described the scam as a “sophisticated and deliberate” case of insider trading, which had generated profits of over £1m. Mang was sentenced to three years and eight months in prison, while Suen received a two-year jail term. The FCA has been cracking down on insider trading in recent years, with a number of high-profile cases resulting in significant fines and prison sentences. The regulator has urged financial services firms to ensure they have robust controls in place to prevent insider trading and other forms of market abuse.

A former analyst at Janus Henderson, Redinel Korfuzi, has been convicted of insider trading and money laundering, resulting in a six-year prison sentence. His sister, Oerta Korfuzi, also received a five-year sentence in connection to the scheme. The Financial Conduct Authority (FCA) prosecuted the case, revealing that Redinel misused his role to access confidential information and shared it with his sister to make profitable trades.

The FCA’s investigation discovered that Redinel exploited his position to view emails indicating investor interest in equity raises or share disposals, enabling him to swiftly trade on this information across multiple accounts, including those belonging to his sister. Over a period from December 2019 to March 2021, the siblings engaged in trades involving 13 companies, generating profits exceeding £960,000.

After observing suspicious trading patterns, the FCA intervened, leading to the arrest of the siblings in March 2021 with the assistance of the Metropolitan Police. Furthermore, an in-depth analysis by the FCA unraveled an intricate money laundering network involving 173 transactions from the UK to Albania. During a subsequent search, authorities seized nearly £25,000 from a Knightsbridge safety deposit box linked to the illicit activities.

Steve Smart, joint executive director of enforcement and market oversight at the FCA, condemned the Korfuzis’ actions, stating that they abused their privileged access to confidential information for personal gain, thereby compromising the market’s integrity. He emphasized the FCA’s dedication to collaborating with law enforcement to combat financial crimes and hold perpetrators accountable.

Following an extensive 18-week trial at Southwark Crown Court, the Korfuzis were convicted of insider trading and money laundering on June 19, 2025. The FCA has initiated proceedings under the Proceeds of Crime Act 2002 to recover the illicit profits obtained through their unlawful activities. This case underscores the FCA’s commitment to preserving the transparency and fairness of financial markets by aggressively pursuing individuals who seek to manipulate and profit from insider information.