GeneDx Holdings Corp.

Except for as set forth below, there have been no material changes in our risk factors from those disclosed in Part I, Item 1A “Risk Factors” of our 2024 Form 10-K and in Part II, Item 1A “Risk Factors” of our Quarterly Report for the quarterly period ended March 31, 2025, filed with the SEC on April 30, 2025, which sections are incorporated by reference herein.

Changes in FDA oversight for laboratory developed tests (“LDTs”) could subject our operations to much more significant regulatory requirements.

We currently offer an LDT version of certain tests. Historically, the FDA has exercised a policy of enforcement discretion with respect to most LDTs, whereby the FDA did not actively enforce its medical device regulatory requirements for such tests. However, at various points in recent years, the FDA has indicated that it intends to end enforcement discretion for many tests offered as LDTs, and to require such tests to comply with certain FDA regulatory requirements. Agency officials have previously expressed significant concerns regarding performance disparities between some LDTs and in vitro diagnostics that have been reviewed, cleared, authorized or approved by the FDA.

On April 29, 2024, the FDA published a final rule on LDTs, in which the FDA outlined its plans to end enforcement discretion for many LDTs in five stages over a four-year period. In response, multiple lawsuits were filed challenging the FDA’s authority to regulate LDTs as medical devices under the Federal Food, Drug, and Cosmetic Act (FDCA). On March 31, 2025, the U.S. District Court for the Eastern District of Texas struck down the 2024 final rule on the grounds that the FDA exceeded its authority under the FDCA. The FDA did not appeal the court’s ruling. As a result, clinical laboratories offering LDTs are not required to comply with any of the phases of the final rule.

Legislative proposals addressing the FDA’s oversight of LDTs have also been introduced in previous Congresses, and we expect that new legislative proposals will be introduced from time-to-time. If the FDA ultimately regulates certain LDTs, our tests may become subject to extensive FDA requirements and our business may otherwise be adversely affected. If the FDA were to actively regulate our LDTs, we could experience reduced revenue or increased costs, which could adversely affect our business, prospects, results of operations and financial condition. If required, the regulatory marketing authorization process required to bring our current or future LDTs into compliance may involve, among other things, successfully completing additional clinical validations and preparing submissions that comply with applicable premarket review requirements. Furthermore, legislative proposals, if enacted, such as the VALID Act, could create new or different regulatory and compliance burdens on us and could have a negative effect on our ability to keep products on the market or develop new products, which could have a material effect on our business. In the event that the FDA requires marketing authorization of our LDTs in the future, the FDA may not ultimately grant any clearance, authorization or approval requested by us in a timely manner, may limit our indication in a way that is not commercially desirable, or refuse to provide such authorization at all. In addition, if the FDA inspects our laboratory in relation to the marketing of any FDA-authorized test, any enforcement action the FDA takes might not be limited to the FDA-authorized test carried by us and could encompass our other testing services.