Sharon L. Nelles, Leonid Traps, and Oliver W. Engebretson-Schooley are Partners at Sullivan & Cromwell LLP. This post is based on a Sullivan & Cromwell memorandum by Ms. Nelles, Mr. Traps, Mr. Engebretson-Schooley, David M.J. Rein, William S.L. Weinberg, and Samuel J. Winick, all at Sullivan & Cromwell LLP; and is part of the Delaware Law Series; links to other posts in the series are available here.
On August 13, 2026, in In re The Boeing Co. Derivative Litigation, Justice Morgan T. Zurn, recently appointed to the Delaware Supreme Court and sitting by designation in the Delaware Court of Chancery, dismissed Caremark failure of oversight claims asserted against current and former directors and employees of The Boeing Company.[1] Granting defendants’ motion to dismiss in full and with prejudice, the Court emphasized the deference accorded to directors of Delaware corporations under the business judgment rule and held that liability under Caremark does not arise where directors reasonably believe they are fulfilling their oversight duties.[2] S&C represents Boeing and the director and employee defendants in the litigation.


