Macquarie Infrastructure v. Moab Partners
The Facts
Moab Partners alleged that Macquarie Infrastructure's failure to disclose the impact of an international fuel regulation on its business, as required by SEC Item 303, constituted securities fraud. The Second Circuit held an Item 303 omission could support a Rule 10b-5 claim.
The Issue
What showing of price impact securities fraud plaintiffs must make at class certification to invoke the Basic Inc. presumption of reliance
The Rules
Basic Inc. v. Levinson fraud-on-the-market presumption
Securities Exchange Act Rule 10b-5
Halliburton II - price impact at class certification
The Application
Moab Partners argued that Macquarie Infrastructure's failure to disclose information about the international fuel regulation's business impact, information plainly required under SEC Item 303, should constitute securities fraud under Rule 10b-5. The Court rejected this argument, finding that Macquarie's silence, though regulatory non-compliant, did not create Rule 10b-5 liability absent an affirmative statement that the omission rendered misleading. The decision clarified that SEC disclosure rules and Rule 10b-5's requirements operate on different planes: regulatory non-compliance does not automatically trigger fraud liability. Because Moab could identify no false or misleading affirmative statement by Macquarie, the pure omission fell outside Rule 10b-5's scope regardless of Item 303's mandate to disclose.
The Conclusion
**The Court reversed 9-0, holding that Item 303 omissions alone do not support Rule 10b-5 claims.** Investors must identify an affirmative statement rendered false or misleading by the failure to disclose; pure silence is not actionable under the securities fraud rule.
No circuit court data for this case.
Case Analysis
Overview
The Supreme Court unanimously held that a failure to disclose information required by SEC Item 303, which governs management discussion of known trends and risks, does not by itself give rise to a securities fraud claim under Rule 10b-5 absent an affirmative misstatement or misleading half-truth. The ruling resolved a circuit split on pure omission liability.
Facts
Moab Partners alleged that Macquarie Infrastructure's failure to disclose the impact of an international fuel regulation on its business, as required by SEC Item 303, constituted securities fraud. The Second Circuit held an Item 303 omission could support a Rule 10b-5 claim.
Issue
Whether a pure omission of information required by SEC Item 303 can constitute an actionable securities fraud claim under Rule 10b-5(b) without a corresponding affirmative misstatement.
Rule
Rule 10b-5(b) prohibits omitting material facts only when the omission renders an affirmative statement misleading. A pure silence, without any accompanying statement that becomes misleading by the omission, does not violate Rule 10b-5 even if the omitted fact was required to be disclosed by SEC regulation.
Analysis
Moab Partners argued that Macquarie Infrastructure's failure to disclose information about the international fuel regulation's business impact. Information plainly required under SEC Item 303,should constitute securities fraud under Rule 10b-5. The Court rejected this argument, finding that Macquarie's silence, though regulatory non-compliant, did not create Rule 10b-5 liability absent an affirmative statement that the omission rendered misleading. The decision clarified that SEC disclosure rules and Rule 10b-5's requirements operate on different planes: regulatory non-compliance does not automatically trigger fraud liability. Because Moab could identify no false or misleading affirmative statement by Macquarie, the pure omission fell outside Rule 10b-5's scope regardless of Item 303's mandate to disclose.
Conclusion
**The Court reversed 9-0, holding that Item 303 omissions alone do not support Rule 10b-5 claims.** Investors must identify an affirmative statement rendered false or misleading by the failure to disclose; pure silence is not actionable under the securities fraud rule.
Notes
OT2023. Added via SCOTUS bulk import 2026-05-14
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