Heartflow (HTFL) director Julie Cullivan sells 9,122 shares in planned trade

Rhea-AI Filing Summary

Heartflow, Inc. director Julie A. Cullivan reported an open-market sale of 9,122 shares of common stock at $25.00 per share on March 5, 2026. After this transaction, she held 27,291 shares directly. The sale was executed under a previously adopted Rule 10b5-1 trading plan dated September 12, 2025.

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^*

Cullivan Julie A

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

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	03/05/2026		S(1)		9,122	D	$25	27,291	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	03/06/2026
	** 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.

FAQ

What insider transaction did Heartflow (HTFL) disclose for Julie A. Cullivan?

Heartflow director Julie A. Cullivan reported selling 9,122 shares of common stock in an open-market transaction at $25.00 per share. This sale was recorded on March 5, 2026 and reflects a planned disposition under a Rule 10b5-1 trading arrangement.

How many Heartflow (HTFL) shares does Julie A. Cullivan hold after the reported sale?

After the reported sale, Julie A. Cullivan directly holds 27,291 shares of Heartflow common stock. This figure reflects her ownership immediately following the March 5, 2026 open-market transaction disclosed in the Form 4 insider trading report.

At what price were the Heartflow (HTFL) shares sold in Julie A. Cullivan’s Form 4?

The shares were sold at a price of $25.00 per share. This per-share sale price applies to the 9,122 Heartflow common shares disposed of in the March 5, 2026 open-market transaction reported in the Form 4 filing.

Was Julie A. Cullivan’s Heartflow (HTFL) share sale under a Rule 10b5-1 plan?

Yes. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted by Julie A. Cullivan on September 12, 2025. Such plans pre-schedule trades to help insiders systematically diversify their holdings over time.

What type of security did Julie A. Cullivan trade in the Heartflow (HTFL) Form 4?

The transaction involved Heartflow’s common stock. The Form 4 specifies a non-derivative transaction in common stock, where 9,122 shares were sold in the open market at $25.00 per share on March 5, 2026.