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Glancy Prongay & Murray LLP, a Leading Securities Fraud Law Firm, Announces Investigation of iRhythm Technologies, Inc. (IRTC) on Behalf of Investors

Glancy Prongay & Murray LLP (“GPM”), a leading national shareholder rights law firm, today announced that it has commenced an investigation on behalf of iRhythm Technologies, Inc. (“iRhythm” or the “Company”) (NASDAQ: IRTC) investors concerning the Company’s possible violations of the federal securities laws.

If you suffered a loss on your iRhythm investments or would like to inquire about potentially pursuing claims to recover your loss under the federal securities laws, you can submit your contact information at You can also contact Charles H. Linehan, of GPM at 310-201-9150, Toll-Free at 888-773-9224, or via email at to learn more about your rights.

On November 1, 2022, iRhythm released its revised fourth quarter and full year 2022 financial guidance, issuing an “Advisory Notice” to customers of its real-time heart monitor, Zio AT, and lowered its Zio AT forecast for the quarter from 40% to 20%. On this news, iRhythm’s stock price fell $19.67, or 15.5%, over two consecutive trading days to close at $107.10 per share on November 3, 2022, thereby injuring investors.

Then, On November 4, 2022, iRhythm elaborated on its Customer Advisory Notice, revealing that it had initiated it on September 28, 2022 as a result of its “assessment of topics raised in an FDA inspection focused on Zio AT,” after which the FDA issued an inspection observation report on Form 483, typically issued in cases involving violations of the Food Drug and Cosmetic Act and related Acts. On this news, iRhythm’s stock price fell $2.43, or 2.4%, to close at $100.44 per share on November 7, 2022.

Then, on May 4, 2023, iRhythm disclosed that it had received a subpoena from the Civil Division of the U.S. Department of Justice (“DOJ”), requesting documents related to certain products and services. On this news, iRhythm’s stock price fell $9.25, or 6.9%, to close at $124.79 per share on May 5, 2024.

Then, on May 30, 2023 iRhythm disclosed that it had received a warning letter from the FDA detailing several serious issues with the Zio AT device, including the device having only been approved for non-critical patients and unreliable for high-risk patients, despite the Company’s marketing of the device to high-risk patients. On this news, iRhythm’s stock price fell $7.41, or 6.1%, to close at $114.27 per share on May 31, 2023, thereby injuring investors further.

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Whistleblower Notice: Persons with non-public information regarding iRhythm should consider their options to aid the investigation or take advantage of the SEC Whistleblower Program. Under the program, whistleblowers who provide original information may receive rewards totaling up to 30 percent of any successful recovery made by the SEC. For more information, call Charles H. Linehan at 310-201-9150 or 888-773-9224 or email

About GPM

Glancy Prongay & Murray LLP is a premier law firm representing investors and consumers in securities litigation and other complex class action litigation. ISS Securities Class Action Services has consistently ranked GPM in its annual SCAS Top 50 Report. In 2018, GPM was ranked a top five law firm in number of securities class action settlements, and a top six law firm for total dollar size of settlements. With four offices across the country, GPM’s nearly 40 attorneys have won groundbreaking rulings and recovered billions of dollars for investors and consumers in securities, antitrust, consumer, and employment class actions. GPM’s lawyers have handled cases covering a wide spectrum of corporate misconduct including cases involving financial restatements, internal control weaknesses, earnings management, fraudulent earnings guidance and forward looking statements, auditor misconduct, insider trading, violations of FDA regulations, actions resulting in FDA and DOJ investigations, and many other forms of corporate misconduct. GPM’s attorneys have worked on securities cases relating to nearly all industries and sectors in the financial markets, including, energy, consumer discretionary, consumer staples, real estate and REITs, financial, insurance, information technology, health care, biotech, cryptocurrency, medical devices, and many more. GPM’s past successes have been widely covered by leading news and industry publications such as The Wall Street Journal, The Financial Times, Bloomberg Businessweek, Reuters, the Associated Press, Barron’s, Investor’s Business Daily, Forbes, and Money.

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