Heartflow, Inc. — Director's Dealing 2026

Feb 10, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Heartflow, Inc. (HTFL)
CIK: 0001464521
Period of Report: 2026-02-06

Reporting Person: Farquhar John C.M. (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-06	Common Stock	F	1541	$27.74	Disposed	430368	Direct
2026-02-06	Common Stock	A	183850	—	Acquired	614218	Direct
2026-02-10	Common Stock	S	22562	$27.46	Disposed	591656	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-06	Stock Option	$27.74	A	321259	Acquired	2036-02-06	Common Stock (321259)	Direct

Footnotes

F1: Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported.

F2: Represents restricted stock units ("RSUs"), with a vesting commencement date of February 6, 2026 (the "Vesting Commencement Date"). 1/16th of the RSUs vest on each quarterly anniversary of the Vesting Commencement Date,
subject to continued service through the applicable vesting date.

F3: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 12, 2025.

F4: This transaction was executed in multiple trades at price ranging from $26.74 to $29.14. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F5: The option vests 1/48 on each monthly anniversary of the Vesting Commencement Date, subject to continued service through the applicable vesting date