Wietschner Ex Rel. JPMorgan Chase & Co. v. Dimon
This case involves a shareholder derivative action brought by Sam Wietschner on behalf of JPMorgan Chase & Co. against James Dimon and other respondents. The plaintiff appealed the Supreme Court's dismissal of the amended complaint and denial of leave to amend. The Appellate Division, First Department, unanimously affirmed the lower court's decision, citing res judicata and collateral estoppel. The court found that previous federal rulings on similar shareholder derivative actions, which failed to allege particularized facts for demand futility, precluded the current claims. Furthermore, the plaintiff did not adequately allege facts demonstrating a reasonable doubt about the board's independent judgment or a substantial likelihood of personal liability, especially given an exculpatory clause in the corporate certificate of incorporation.