Heartflow (HTFL) CEO sells 9,725 shares at $25 in pre-set 10b5-1 trade

Rhea-AI Filing Summary

Heartflow, Inc. Chief Executive Officer John C.M. Farquhar sold 9,725 shares of Common Stock in an open-market transaction at $25.00 per share on March 18, 2026. After this sale, he directly holds 571,725 shares. The transaction was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on September 12, 2025, indicating it was scheduled in advance rather than timed discretionarily.

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
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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 CALIFORNIA 94041

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/18/2026

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

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

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

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	03/18/2026		S(1)		9,725	D	$25	571,725	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

Explanation of Responses:

1. 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.

	/s/ Nga Van, by power of attorney	03/20/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Heartflow (HTFL) disclose for its CEO?

Heartflow’s CEO sold 9,725 shares of Common Stock at $25.00 per share. The open-market sale occurred on March 18, 2026, and was executed under a pre-arranged Rule 10b5-1 trading plan adopted in September 2025.

How many Heartflow (HTFL) shares does the CEO hold after this sale?

After the sale, the CEO directly holds 571,725 Heartflow shares. This remaining stake shows he kept a large position in the company even after selling 9,725 shares in the disclosed open-market transaction.

At what price did the Heartflow (HTFL) CEO sell his shares?

The CEO sold 9,725 Heartflow shares at $25.00 per share. This open-market transaction involved Common Stock and was reported as a standard sale in the Form 4 insider trading disclosure.

Was the Heartflow (HTFL) CEO’s share sale under a Rule 10b5-1 plan?

Yes, the CEO’s sale was executed under a Rule 10b5-1 trading plan. The footnote states the plan was adopted on September 12, 2025, indicating the March 18, 2026 sale was scheduled in advance rather than decided at the last minute.

Is the Heartflow (HTFL) CEO’s transaction a buy or sell action?

The filing reports a sell transaction by the CEO. It records an open-market sale of 9,725 shares of Common Stock, coded as an “S” transaction, which represents a sale in an open-market or private transaction.

Does the Heartflow (HTFL) Form 4 show any option exercises or derivatives?

No derivative transactions are listed in this Form 4 summary. The filing shows only a single non-derivative open-market sale of Common Stock, with no option exercises or other derivative security movements reported.