XML 44 R26.htm IDEA: XBRL DOCUMENT
v3.26.1

Business Overview (Policies) | 12 Months Ended
--- | ---
Dec. 31, 2025
Business Overview [Abstract] |
Description of Business | Description of Business HeartFlow Holding, Inc. was incorporated in the state of Delaware in July 2007 as Cardiovascular Simulation, Inc. and changed its name to HeartFlow, Inc. in May 2009. On March 1, 2021, HeartFlow, Inc. completed an internal reorganization in which a newly formed parent holding company, HeartFlow Holding, Inc., was established. On July 17, 2025, HeartFlow Holding, Inc.’s stockholders and Board of Directors approved the consolidation of HeartFlow Holding, Inc. with and into HeartFlow, Inc., with HeartFlow, Inc. continuing as the surviving company. The previous holders of HeartFlow Holding, Inc.’s common stock and preferred securities became holders of HeartFlow, Inc.’s common stock and preferred securities based on a 1-to-1 conversion ratio, and the equity incentive plan, outstanding equity awards, outstanding warrants and certain other equity-related agreements of HeartFlow Holding, Inc. were assumed by HeartFlow, Inc. In connection with this consolidation, HeartFlow, Inc. changed its name to Heartflow, Inc. (the “Company”). The Company is a commercial-stage medical technology company that provides software and artificial intelligence (“AI”) designed to deliver a non-invasive solution for diagnosing and managing coronary artery disease (“CAD”). The Company’s novel Heartflow Platform uses AI and advanced computational fluid dynamics to create a personalized 3D model of a patient’s heart based off a single coronary computed tomography angiography (“CCTA”). This results in actionable data on blood flow, stenosis, plaque volume and plaque composition. The Company’s Heartflow FFR CT Analysis and Plaque Analysis software assists physicians in diagnosing, managing and delivering precision care to patients with CAD. The Company was awarded Conformité Européene Mark for its Heartflow FFR CT Analysis in July 2011. The Company received clearance from the U.S. Food and Drug Administration (“FDA”) in November 2014 for its Heartflow FFR CT Analysis and in October 2022 for its Plaque Analysis. The Company’s headquarters is located in Mountain View, California, and the Company also has offices in Santa Rosa, San Francisco, and Rohnert Park, California, Austin, Texas, and Tokyo, Japan. The Company had the following wholly-owned subsidiaries as of December 31, 2025:
Entity Name |  | Country of Incorporation
HeartFlow Japan G.K. |  | Japan
HeartFlow U.K. Ltd |  | United Kingdom
Effective November 2025, HeartFlow Technology U.K. Limited, a wholly-owned subsidiary in the United Kingdom, was dissolved. Effective July 2024, HeartFlow International Sarl, a wholly-owned subsidiary in Switzerland, was dissolved.

X
- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482836/275-10-55-4 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482836/275-10-55-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -SubTopic 10 -Topic 275 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-1 + Details
Name: | us-gaap_NatureOfOperations
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration