Quest Diagnostics Incorporated

Quest Diagnostics News: Johnson Fistel, Globally-Recognized Law Firm, Encourages Shareholders to Submit Their Losses

Shareholder rights law firm Johnson Fistel, LLP ( is investigating whether Quest Diagnostics Incorporated (“Quest” or the “Company”) (NYSE: DGX), any of its executive officers, or others violated securities laws by misrepresenting or failing to timely disclose material, adverse information to investors. The investigation focus on investors’ losses and whether they may be recovered under the federal securities laws.

What if I purchased Quest common stock? If you purchased Quest common stock and suffered significant losses on your investment, join our investigation now:

There is no cost or obligation to you.

What is Johnson Fistel investigating? On January 1, 2022, New York Times released an article regarding the efficacy of Quest and other screening labs for certain prenatal tests. The article states that these tests produce misleading results and does not properly disclose the chances of a false positive. The article elaborates stating, “The test is advertised as getting positive microdeletion results right 75 percent of the time. But that figure comes from a single study that included nine confirmed cases of microdeletions, for a test that screens for seven such disorders. The company doesn’t specify how the tests perform individually, and declined to provide that data. (In a statement, Quest said its test has “excellent performance.”).

What if I have relevant nonpublic information? Individuals with nonpublic information regarding the company should consider whether to assist our investigation or take advantage of the SEC Whistleblower program. Under the SEC program, whistleblowers who provide original information may, under certain circumstances, receive rewards totaling up to thirty percent of any successful recovery made by the SEC. For more information, contact Jim Baker at (619) 814-4471 or

About Johnson Fistel, LLP. Johnson Fistel, LLP is a nationally recognized shareholder rights law firm with offices in California, New York and Georgia. The firm represents individual and institutional investors in securities class action and derivative lawsuits. For more information about the firm and its attorneys, please visit Attorney advertising. Past results do not guarantee future outcomes.


Johnson Fistel, LLP
Jim Baker, Lead Securities Analyst
Telephone: (619) 814-4471