Mealey's (February 15, 2023, 1:43 PM EST) -- SAN FRANCISCO — Lead plaintiffs in a class action have failed to sufficiently plead that a hearing aid manufacturer, certain of its senior executives and others violated federal securities law in misrepresenting the success of the company’s business model and the extent of investigations into the company’s billing for its hearing aids to insurance companies because the investors failed to properly plead an actionable misstatement or omission or scienter in making their claims, a federal judge in California ruled Feb. 14....