The SEC prevailed on a motion to dismiss a closely watched lawsuit alleging that the defendant had engaged in insider trading based on news about a not-yet-public corporate acquisition when he purchased securities of a company not involved in that deal.  The January 14, 2022 decision in SEC v. Panuwat (N.D. Cal.) marks the first time a court has considered the theory of “shadow trading,” which involves trading the securities of a public company that is not the direct subject of the material, nonpublic information (“MNPI”) at issue.

The Panuwat decision does not appear to break new ground under the misappropriation theory of insider trading in light of the particular facts alleged.  But the “shadow trading” theory warrants attention because, on other sets of allegations, it can have wide-ranging ramifications for traders.