Then, on November 4, 2022, iRhythm disclosed that it initiated the Customer Advisory Notice on September 28, 2022, following issues raised by the FDA during an inspection that culminated in an inspection observation report on Form 483, and that the Customer Advisory Notice warned patients of a "labeling correction" related to "the device's maximum transmission limits during wear," as well as other critical issues that prevent the device from working as advertised, the complaint further alleges. On this news, the price of iRhythm common stock fell, according to the complaint. Thereafter, as the complaint further alleges, on May 4, 2023, iRhythm announced that "on April 4, 2023, [it] received a Subpoena Duces Tecum from the Consumer Protection Branch, Civil Division of the U.S. Department of Justice, requesting production of various documents regarding [its] products and services."