Heartflow, Inc. Files 8-K with Corporate Updates

Ticker: HTFL · Form: 8-K · Filed: Aug 11, 2025 · CIK: 1464521

Heartflow, Inc. 8-K Filing Summary
FieldDetail
CompanyHeartflow, Inc. (HTFL)
Form Type8-K
Filed DateAug 11, 2025
Risk Levellow
Pages2
Reading Time3 min
Key Dollar Amounts$0.001, $19.00, $364 m
Sentimentneutral

Sentiment: neutral

Topics: corporate-governance, filing-update, bylaws

TL;DR

Heartflow filed an 8-K on 8/11/25 covering corporate changes and financial docs.

AI Summary

Heartflow, Inc. filed an 8-K on August 11, 2025, reporting amendments to its articles of incorporation or bylaws, other events, and financial statements/exhibits. The company, formerly known as Cardiovascular Simulation, Inc., is incorporated in Delaware and headquartered in Mountain View, California.

Why It Matters

This filing indicates potential changes in Heartflow's corporate structure or governance, which could impact its operations and investor relations.

Risk Assessment

Risk Level: low — The filing is a routine corporate disclosure and does not appear to contain material adverse information.

Key Numbers

  • 001-42790 — SEC File Number (Identifies the company's filing with the SEC.)
  • 26-0506743 — IRS Employer Identification No. (Company's tax identification number.)

Key Players & Entities

  • Heartflow, Inc. (company) — Registrant
  • August 11, 2025 (date) — Date of Report
  • Cardiovascular Simulation, Inc. (company) — Former Name
  • Delaware (jurisdiction) — State of Incorporation
  • Mountain View, California (location) — Principal Executive Offices

FAQ

What specific amendments were made to Heartflow, Inc.'s articles of incorporation or bylaws?

The filing indicates amendments were made, but the specific details are not provided in the provided text, only that it is an item of information reported.

What are the 'Other Events' being reported by Heartflow, Inc. on August 11, 2025?

The filing lists 'Other Events' as an item of information, but the specific nature of these events is not detailed in the provided text.

What financial statements and exhibits are included in this 8-K filing?

The filing states that 'Financial Statements and Exhibits' are included, but the specific content of these documents is not detailed in the provided text.

When did Heartflow, Inc. change its name from Cardiovascular Simulation, Inc.?

Heartflow, Inc. changed its name from Cardiovascular Simulation, Inc. on May 19, 2009.

What is the principal executive office address for Heartflow, Inc.?

The principal executive offices of Heartflow, Inc. are located at 331 E. Evelyn Avenue, Mountain View, California 94041.

Filing Stats: 641 words · 3 min read · ~2 pages · Grade level 11.2 · Accepted 2025-08-11 17:08:35

Key Financial Figures

  • $0.001 — ange on which registered Common Stock, $0.001 par value per share HTFL Nasdaq Global
  • $19.00 — nal shares, at a price to the public of $19.00 per share. The gross proceeds to the Co
  • $364 m — tial public offering were approximately $364 million, before deducting underwriting di

Filing Documents

03 Amendments to Articles of Incorporation or Bylaws Change in Fiscal Year

Item 5.03 Amendments to Articles of Incorporation or Bylaws Change in Fiscal Year. In connection with the closing of an initial public offering by Heartflow, Inc. (the "Company") on August 11, 2025, the Company's Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws became effective. These Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws are the same as the "form of" the Amended and Restated Certificate of Incorporation and Amended and Restated Bylaws previously filed as Exhibit 3.3 and Exhibit 3.5, respectively, to the Company's Registration Statement on Form S-1 (File No. 333-288733) filed with the Securities and Exchange Commission (as amended, the "Registration Statement"). A description of certain provisions of the Amended and Restated Certificate of Incorporation and the Amended and Restated Bylaws is set forth in the section titled "Description of capital stock" in the Registration Statement. The Amended and Restated Certificate of Incorporation and the Amended and Restated Bylaws are filed herewith as Exhibit 3.1 and Exhibit 3.2, respectively, and are incorporated herein by reference.

01 Other Events

Item 8.01 Other Events. On August 11, 2025, the Company completed its initial public offering of 19,166,667 shares of its common stock, $0.001 par value per share ("Common Stock"), which includes an additional 2,500,000 shares of Common Stock purchased by the underwriters pursuant to their option to purchase additional shares, at a price to the public of $19.00 per share. The gross proceeds to the Company from the initial public offering were approximately $364 million, before deducting underwriting discounts and commissions and estimated offering expenses payable by the Company.

01 Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit Number Description 3.1 Amended and Restated Certificate of Incorporation of Heartflow, Inc. 3.2 Amended and Restated Bylaws of Heartflow, Inc. 1

SIGNATURES

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. HEARTFLOW, INC. Date August 11, 2025 By s Vikram Verghese Vikram Verghese Chief Financial Officer 2

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