NextFin News - Simon Sadler, the founder of Segantii Capital Management, testified in a Hong Kong court on Tuesday that he was under "extreme stress" during the period surrounding a controversial 2017 trade in Esprit Holdings Ltd. shares. The testimony marks a pivotal moment in the insider trading trial of the man once dubbed the "block trade king" of Asia, whose $4.8 billion hedge fund was forced to return capital to investors earlier this year following the criminal charges. Sadler and former Segantii trader Daniel La Rocca are accused of trading on non-public information regarding a planned stake sale by Lone Pine Capital.
The prosecution alleges that in June 2017, Sadler and La Rocca received a tip from Tony Psarianos, then a trader at Merrill Lynch, about an impending block trade of Esprit shares. According to court filings, Segantii sold 1.57 million shares of the fashion retailer at an average price of HK$5.25 and short-sold an additional 132,000 shares just a day before Lone Pine Capital offloaded a 10% stake. The subsequent market reaction saw Esprit’s share price plunge 29% over the following six trading days, a move that allegedly allowed Segantii to avoid significant losses or generate illicit profits.
Sadler, a veteran investor known for his aggressive pursuit of block trades and high-conviction bets, defended his actions by painting a picture of a high-pressure environment where he was managing multiple complex positions. He testified that his focus at the time was fractured by various market stresses, suggesting that the decision to trade Esprit was part of a broader risk management strategy rather than a calculated exploitation of inside information. This defense seeks to counter the prosecution's narrative of a deliberate "front-running" scheme based on a specific leak from a sell-side contact.
The case is being closely watched by the hedge fund industry as it highlights the thin line between legitimate market intelligence and illegal insider information in the opaque world of block trading. Segantii’s business model relied heavily on being the first call for banks looking to offload large blocks of shares, a position that requires constant communication with traders like Psarianos. While the prosecution views the communication from Merrill Lynch as a clear breach of confidentiality, the defense argues that such interactions are standard practice in the liquidity-providing business.
Legal experts suggest the outcome will hinge on whether the court believes the information provided to Sadler was "specific" and "price-sensitive" under Hong Kong law, or merely general market chatter. If convicted, the case could set a rigorous precedent for how hedge funds interact with equity capital markets desks. For now, the "extreme stress" defense serves as a reminder of the volatile conditions under which Segantii operated before its rapid unraveling in early 2026. The trial is expected to continue through the month as more witnesses from the brokerage community are called to testify.
Explore more exclusive insights at nextfin.ai.
