TIMOTHY C. BARABE - 07 Aug 2025 Form 4 Insider Report for Heartflow, Inc. (HTFL)

Role: Director
Signature: /s/ Angela Ahmad, Attorney-in-Fact for Timothy C. Barabe
Issuer symbol: HTFL
Transactions as of: 07 Aug 2025
Net transactions value: $0
Form type: 4
Filing time: 11 Aug 2025, 21:00:50 UTC
Previous filing: 06 Jan 2025
Next filing: 08 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
BARABE TIMOTHY C	Director	C/O HEARTFLOW, INC., 331 E. EVELYN AVENUE, MOUNTAIN VIEW	/s/ Angela Ahmad, Attorney-in-Fact for Timothy C. Barabe	11 Aug 2025	0001237409

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HTFL	Common Stock	Conversion of derivative security		+131,578	+358%		168,357	11 Aug 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	HTFL	Stock Option	Award	$0	+23,710		$0.000000	23,710	07 Aug 2025	Common Stock	23,710	$19.00	Direct	F2
transaction	HTFL	Convertible Promissory Note	Conversion of derivative security	$0	-131,578	-100%	$0.000000	0	11 Aug 2025	Common Stock	131,578	$15.20	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Upon the closing of Heartflow, Inc.'s ("Heartflow") initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.
F2	The option will vest in full on the earlier of Heartflow's annual meeting of shareholders in 2026 and the first anniversary of the grant date, subject to continued service through such date.

Content

Upon the closing of Heartflow, Inc.'s ("Heartflow") initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

The option will vest in full on the earlier of Heartflow's annual meeting of shareholders in 2026 and the first anniversary of the grant date, subject to continued service through such date.