Mealey's (June 11, 2020, 2:18 PM EDT) -- SAN FRANCISCO — A lead plaintiff in a securities class action against a medical device maker and two of its executive officers failed to sufficiently plead a plausible inference of scienter in alleging that the defendants issued misrepresentations in violation of federal securities laws that concealed migration issues with the device maker’s aortic aneurysm device, a Ninth Circuit U.S. Court of Appeals panel ruled June 10 (Vicky Nguyen v. Endologix Inc., et al., No. 18-56322, 9th Cir.)....