[Form 4] Heartflow, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Heartflow, Inc. CEO John C.M. Farquhar reported multiple equity transactions. On February 6, 2026, he was granted 183,850 restricted stock units at no cost, vesting in equal quarterly installments over four years starting on that date. The same day, 1,541 shares of common stock were withheld by the company to cover taxes tied to previously reported RSU vesting.

Also on February 6, 2026, he received a stock option for 321,259 shares at an exercise price of $27.74 per share, vesting in equal monthly installments over four years. On February 10, 2026, he sold 22,562 shares of common stock at a weighted average price of $27.46 under a Rule 10b5-1 trading plan, and reported owning 591,656 common shares and 321,259 options directly after these transactions.

Insider Trade Summary

Net Seller: 22,562 shares ($619,553)

Net Sell 4 txns

Insider Farquhar John C.M.

Role Chief Executive Officer

Sold 22,562 shs ($620K)

Type	Security	Shares	Price	Value
Sale	Common Stock	22,562	$27.46	$620K
Grant/Award	Stock Option	321,259	$0.00	--
Tax Withholding	Common Stock	1,541	$27.74	$43K
Grant/Award	Common Stock	183,850	$0.00	--

Holdings After Transaction: Common Stock — 591,656 shares (Direct); Stock Option — 321,259 shares (Direct)

Footnotes (1)

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

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Farquhar John C.M.

(Last) (First) (Middle)

C/O HEARTFLOW, INC.

331 E. EVELYN AVENUE

(Street)

MOUNTAIN VIEW CA 94041

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Heartflow, Inc. [ HTFL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/06/2026		F		1,541(1)	D	$27.74	430,368	D
Common Stock	02/06/2026		A		183,850(2)	A	$0	614,218	D
Common Stock	02/10/2026		S(3)		22,562	D	$27.46(4)	591,656	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option	$27.74	02/06/2026		A		321,259		(5)	02/06/2036	Common Stock	321,259	$0	321,259	D

Explanation of Responses:

1. 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.

2. 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.

3. 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.

4. 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.

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

	/s/ Mhairi Jones, by power of attorney	02/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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