Heartflow, Inc.

In October 2025, we and certain of our employees received civil investigative demands (the “CID”) from

the U.S. Department of Justice, Civil Division, in connection with an investigation under the federal Anti-

Kickback Statute and Civil False Claims Act (the “Investigation”). The CID requests information,

documents, and testimony focused on our financial and contractual arrangements with providers and our

sales and marketing activities. We are cooperating with the Investigation. We are unable to express a

view at this time regarding the likely duration, or ultimate outcome, of the Investigation. Depending on the

outcome of the Investigation, there may be a material impact on our business, results of operations,

financial condition, or cash flows.

In addition, we have become, and we may become in the future, involved in various legal proceedings

arising from the normal course of business activities. We are not presently a party to any litigation for

which the outcome, based on our reasonable belief, if determined adversely to us, would individually or

taken together, materially and adversely affect our business, financial condition, or results of operations.

However, we may from time to time be involved in various claims and legal proceedings of a nature we

believe are normal and incidental to a business such as ours. These matters may include employment,

contract, intellectual property, product liability and other general claims. Regardless of outcome, litigation

can have an adverse impact on us because of defense and settlement costs, diversion of management

resources and other factors.