Circumstantial evidence can prove insider trading, with disgorgement and interest upheld to prevent unjust enrichment.

Insider trading may be established on a preponderance of probabilities through cumulative circumstantial evidence showing access to unpublished price sensitive information, connected relationships, suspicious trade timing, and related funding arrangements. Merger discussions can constitute price sensitive information, and direct proof is not essential where foundational facts and surrounding circumstances support the inference. Disgorgement is an equitable remedy to prevent unjust enrichment, and trading gains may be quantified from the actual purchase-sale spread; interest may run from the date the unlawful gain arose. Delay and natural justice objections fail where investigation is extensive, notice follows completion of investigation, and adequate opportunities to inspect documents and respond are given.

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Issues: (i) Whether the appellants were shown, on the basis of foundational facts and surrounding circumstances, to have accessed unpublished price sensitive information and traded as insiders. (ii) Whether the findings on unlawful gains, disgorgement, and interest called for interference. (iii) Whether the initiation and conduct of the adjudication proceedings suffered from inordinate delay or breach of natural justice.

Issue (i): Whether the appellants were shown, on the basis of foundational facts and surrounding circumstances, to have accessed unpublished price sensitive information and traded as insiders.

Analysis: The relevant legal framework treated merger discussions as price sensitive information and recognized that an insider relationship may be inferred from a connected relationship, access to information, the timing of trades, the pattern of transactions, and other surrounding facts. The Court applied the test of preponderance of probabilities and accepted circumstantial evidence as sufficient where direct proof is unlikely. It found that the close family and business connections, the timing of trades, the funding arrangement through a related company, the absence of ordinary trading behaviour, and the sequence of events collectively supported an inference of access to unpublished price sensitive information and trading on that basis.

Conclusion: The finding of insider trading was sustained against the appellants.

Issue (ii): Whether the findings on unlawful gains, disgorgement, and interest called for interference.

Analysis: The Court held that disgorgement is an equitable remedy aimed at preventing unjust enrichment and that, where both purchase and sale prices are available, the gain can be computed from the actual trading spread. It also held that interest could be levied from the date the unlawful gain arose, and rejected the contention that the rate and commencement date were arbitrary. The computation adopted by the authority was found to be a reasonable method for quantifying the wrongful gain in the facts of the case.

Conclusion: The orders directing disgorgement and interest were upheld.

Issue (iii): Whether the initiation and conduct of the adjudication proceedings suffered from inordinate delay or breach of natural justice.

Analysis: The Court found that the investigation was extensive, that the show cause notice followed completion of the investigation, and that the appellants were given adequate opportunities to inspect documents and appear. It held that the delay complained of was not inordinate in the context of the investigation and that the appellants had chosen not to participate despite service and opportunities. Accordingly, the plea of procedural unfairness was rejected.

Conclusion: The challenge based on delay and natural justice failed.

Final Conclusion: The common challenge to the insider trading findings, the monetary directions, and the adjudication process was rejected, and the impugned orders were affirmed in substance.

Ratio Decidendi: In securities enforcement, insider trading may be proved on preponderance of probabilities by a cumulative assessment of foundational facts and circumstantial evidence showing access to unpublished price sensitive information, connected relationships, suspicious trading timing, and related funding or concealment arrangements.

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