Results of Operations and Financial Condition . On August 13, 2026, Heartflow, Inc. issued a press release regarding its financial results for the quarter ended June 30, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition . On May 14, 2026, Heartflow, Inc. issued a press release regarding its financial results for the quarter ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition . On March 18, 2026, Heartflow, Inc. issued a press release regarding its financial results for the quarter and full year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Form 8-K and is incorporated herein by reference.

Results of Operations and Financial Condition. On November 12, 2025, Heartflow, Inc. issued a press release regarding its financial results for the quarter ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Form 8-K and is incorporated herein by reference.

below (the “Investor Presentation”). In the Investor Presentation, the Company discloses the following preliminary unaudited results of operations for the three months ended June 30, 2025, which were initially disclosed as ranges in the Company’s Registration Statement on Form S-1 (File No. 333-288733) filed with the U.S. Securities and Exchange Commission (“SEC”) in connection with the Company’s initial public offering completed on August 11, 2025: (i) revenue is expected to be approximately…

is preliminary and unaudited based on the most recent information available to the Company’s management as of the date hereof and does not reflect a comprehensive statement of the Company’s financial results as of and for the three months ended June 30, 2025, which will be disclosed in the Company’s Quarterly Report on Form 10-Q when filed with the SEC. Actual results for the three months ended June 30, 2025 may differ from this preliminary information as a result of completion of the quarter…

Termination of a Material Definitive Agreement. On August 22, 2025, Heartflow, Inc. (the “Company”) prepaid in full all outstanding amounts, comprising an aggregate principal amount of $60.1 million plus accrued interest of $1.0 million, under that certain Credit Agreement and Guaranty, dated as of June 14, 2024 and as amended on January 24, 2025 (the “Credit Agreement”), by and among the Company, as borrower, Hayfin Services LLP, as agent (“Hayfin”), and the other parties thereto and, in con…