In October 2021, in United Food v. Zuckerberg, the Delaware Supreme Court adopted a new three-part test for evaluating whether demand is futile in derivative suits. Prior to Zuckerberg, demand futility was long governed by Aronson v. Lewis (1984) and Rales v. Blasband (1993). The Aronson test excuses demand as futile if the allegations raise a reasonable doubt that “the directors are disinterested and independent” or that “the challenged transaction was otherwise the product of a valid business judgment.” The Rales test excuses demand if the allegations create a reasonable doubt that a majority of the board in place at the time of the demand “could have properly exercised its independent and disinterested business judgment in responding to a demand.” Without expressly overruling Aronson and Rales, the Delaware Supreme Court in Zuckerberg adopted a new three-part test, applied on a director-by-director basis, that excuses demand as futile if any of the three parts is true for at least a majority of the members of the board. The Delaware Supreme Court’s affirmance of the Court of Chancery’s holding in In re Camping World that the plaintiffs did not properly plead that demand was futile further cements the utilization of the Zuckerberg standard as the governing law in demand futility analysis.

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