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Segantii trial nears finish as lawyers make closing arguments

Reported by Opalesque
Oct 6, 2026· 2 min read
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Key Takeaways
  • • Segantii Capital Management founder Simon Sadler appeared in Hong Kong court as prosecutors delivered closing arguments in an insider-trading trial centered on unauthorized trades in Esprit Holdings stock in June 2017.
  • • The case involves allegations that Segantii traded on material non-public information ahead of a disclosure by US hedge fund Lone Pine Capital.
  • • The trial has reached its final phase with closing arguments, indicating the court is preparing to move toward a verdict.
Summary
Segantii Capital Management founder Simon Sadler returned to a Hong Kong courtroom as prosecutors concluded their case in a high-profile insider-trading investigation. The trial centers on trading activity in Esprit Holdings shares in June 2017, with allegations that Segantii executed trades based on information not yet disclosed to the public. The prosecution's closing arguments mark a critical juncture in the proceeding, as the court prepares to evaluate the evidence presented by both sides.

The case has drawn significant attention within the hedge fund industry due to the involvement of Lone Pine Capital, a prominent US-based investment firm, and the implications for compliance standards in cross-border trading activity. The June 2017 timeframe places the alleged trades during a period when regulatory scrutiny of insider-trading activity was intensifying across Asian markets. Sadler's personal appearance at closing arguments underscores the gravity of the charges and the potential consequences for both his firm and the broader alternative-investment sector.

The trial's progression to the closing-argument phase indicates that evidence presentation is complete and a judicial determination is forthcoming. The outcome of this case may have implications for how hedge funds structure their information barriers and pre-trade compliance procedures, particularly in markets with cross-border capital flows.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Opalesque Segantii trial nears finish as lawyers make closing arguments