
As discussed here, in its April 2024 decision in Macquarie Infrastructure Corp. v. Moab Partners, the U.S. Supreme Court held that a failure to disclose information required by Item 303 of Regulation S-K cannot support a private claim under Rule 10b-5 in the absence of an otherwise-misleading statement. The upshot is that so-called “pure omissions” cases are not actionable, meaning that omissions are only actionable if they make an affirmative statement materially misleading. In the following guest post, Larry Fine, Management Liability Coverage Leader for WTW, takes a closer look at the Macquarie decision and considers its implications, particularly with respect to future cases based on alleged omissions. A version of this article was previously published as a WTW client alert. I would like to thank Larry for allowing me to publish this article as a guest post on this site. I welcome guest post submissions from responsible authors on topics of interest to this site’s readers. Please contact me directly if you would like to submit a guest post. Here is Larry’s article.Continue Reading Guest Post: The Additional Pro-Defense Benefits of the Macquarie Decision






In its 2011 decision in the Janus Group case, the U.S. Supreme Court held that one who does not “make” a false statement cannot be held liable under section (b) of Rule 10b-5. In an enforcement action brought against him by the SEC, the defendant, Francis Lorenzo, argued that under the Janus case, he could not be held liable under the securities laws for forwarding a misleading email his boss had written because he did not “make” the false statement. The case ultimately made its way to the U.S. Supreme Court. On March 27, 2019, the Court found that even if Lorenzo could not be held liable under section (b) of the Rule because he did not “make” the statement, he could still be held liable under the scheme liability provisions in sections (a) and (c) of the Rule for disseminating the document. The Court’s March 27, 2019 opinion in Lorenzo v. Securities and Exchange Commission can be found