Circuit Split Reflects Disagreement About the Relationship Between Scheme Liability and SEC Rule 10b-5(b)

The Second Circuit, like several other circuits, has long held that misstatements and omissions cannot form the "sole basis" for a scheme liability claim. Lentell v. Merrill Lynch & Co., 396 F.3d 161, 171 (2d Cir. 2005). In other words, the scheme must "also encompass conduct beyond those misrepresentations or omissions." WPP Luxembourg Gamma Three Sarl v. Spot Runner, 655 F.3d 1039, 1057 (9th Cir. 2011). Some courts adopted this rule to discourage private plaintiffs from attempting to evade some of the PSLRA's heightened pleading requirements by recasting their Rule 10b-5(b) allegations as scheme liability claims. Lentell, 396 F.3d at 177. Courts have also justified the rule as safeguarding the distinction between primary and secondary liability. The private right of action under Rule 10b-5 does not include aiding-and-abetting liability, Central Bank of Denver, N.A. v. First Interstate Bank of Denver, N.A., 511 U.S. 164, 180 (1994), but permitting scheme liability claims based solely on misstatements or omissions, without other actionable conduct, may allow private plaintiffs to sue aiders and abettors, SEC v. Rio Tinto plc, 41 F.4th 57, 55 (2d Cir. 2022).