Supreme Court Decision Syllabus (scotus)

Macquarie Infrastructure Corporation owns a subsidiary that operates terminals to store bulk liquid commodities, including No. 6 fuel oil, which has almost 3% sulfer. The UN adopted IMO in 2016, which set in in 2020. This regulation capped the sulfur content on fuel oil used in shipping to 0.5%. Macquarie did not discuss this IMO in its public documents, but in February 2018, its stock fell 41% after announcing that it lost contracts in of its subsidiary. Moab partners sued for violating SEC Rule 10b-5(b) - failure to omit material facts about securities. The trial court dismissed the complaint, the Second Circuit reversed because of its duty to disclose. Held: Pure omissions are not actionable under Rule 10b–5(b). Rule 10b– 5(b) makes it unlawful “[t]o make any untrue statement of a material fact or to omit to state a material fact necessary in order to make the statements made, in the light of the circumstances under which they were made, not misleading.” In addition to prohibiting “any untrue statement of