U.S. Supreme Court Finds Non-"Makers" Can Violate Rule 10b-5

On March 27, 2019, the U.S. Supreme Court ruled in Lorenzo v. SEC, No. 17-1077 (U.S. Mar. 27, 2019) that a party who is not a “maker” under Securities and Exchange Commission Rule 10b-5(b) can nevertheless be found to have violated Rule 10b-5(a) and (c) and other securities laws including §17(a)(1) of the Securities Act of 1933. Rule 10b-5 makes it unlawful: