A securities class action is pending in the U.S. District Court for the Southern District of New York on behalf of investors who purchased The Simply Good Foods Company common stock and other securities between October 24, 2024, and April 8, 2026. Rosen Law Firm said a complaint has been filed and that investors seeking appointment as lead plaintiff must move the Court by October 13, 2026. The complaint alleges that Simply Good Foods failed to disclose problems following its $280 million acquisition of Only What You Need, Inc., including the loss of key managers, higher administrative costs, product-quality problems linked to a pea-protein supplier, heavier discounting and reduced marketing support. Company disclosures later showed weaker OWYN sales, a $187 million impairment charge in April 2026 and an additional $13 million charge in July, bringing cumulative impairments to $200 million, or 70% of the acquisition price. No class has been certified, and investors may remain absent class members without seeking lead plaintiff status.