Heartflow (HTFL) CEO sells 27K shares under trading plan

Rhea-AI Filing Summary

Heartflow, Inc. (HTFL) reported that its Chief Executive Officer and director, John C.M. Farquhar, sold 27,230 shares of Common Stock on August 21, 2026 at a price of $50.00 per share in an open-market or private transaction. After this sale, he held 360,814 shares directly. The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2025.

Insider Trade Summary 10b5-1

Net Seller: 27,230 shares

Net Sell 1 txn

Insider Farquhar John C.M.

Role Chief Executive Officer

Sold 27,230 shs ($1.36M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	27,230	$50.00	$1.36M

Holdings After Transaction: Common Stock — 360,814 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Shares sold: 27,230 shares of Common Stock Sale price per share: $50.00 per share Shares owned after transaction: 360,814 shares +1 more

4 metrics

Shares sold 27,230 shares of Common Stock Non-derivative sale on August 21, 2026

Sale price per share $50.00 per share Price for the 27,230 shares sold on August 21, 2026

Shares owned after transaction 360,814 shares Direct ownership by CEO following the August 21, 2026 sale

Rule 10b5-1 plan adoption date September 12, 2025 Trading plan under which the August 21, 2026 sale was effected

Key Terms

Rule 10b5-1 trading plan, Common Stock, open market or private transaction

3 terms

Rule 10b5-1 trading plan regulatory

"was effected pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open market or private transaction financial

"Sale in open market or private transaction"

FAQ

What insider transaction did HTFL report for CEO John C.M. Farquhar?

Heartflow, Inc. reported that CEO John C.M. Farquhar sold 27,230 shares of Common Stock on August 21, 2026 at $50.00 per share in an open-market or private transaction, under a Rule 10b5-1 trading plan adopted on September 12, 2025.

How many HTFL shares did the CEO retain after the August 21, 2026 sale?

After the August 21, 2026 transaction, CEO John C.M. Farquhar held 360,814 shares of Heartflow, Inc. Common Stock directly, as reported in the Form 4 filing.

At what price did the HTFL CEO sell shares on August 21, 2026?

On August 21, 2026, CEO John C.M. Farquhar sold Heartflow, Inc. Common Stock at a reported price of $50.00 per share for the 27,230 shares sold.

Was the HTFL CEO’s August 21, 2026 stock sale under a Rule 10b5-1 plan?

Yes. The Form 4 states the August 21, 2026 sale by CEO John C.M. Farquhar was effected pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2025.

How many HTFL insider sell transactions are reported in this Form 4?

The Form 4 for Heartflow, Inc. reports one non-derivative transaction: a sale of 27,230 shares of Common Stock by CEO John C.M. Farquhar on August 21, 2026.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/25/2026 - 05:32 PM Accepted by SEC EDGAR 08/25/2026 - 05:32 PM Learn about SEC filing dates

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.

135 MAIN STREET, SUITE 1000

(Street)

SAN FRANCISCO CALIFORNIA 94105

(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)
08/21/2026

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	08/21/2026		S(1)		27,230	D	$50	360,814	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	08/25/2026
	** 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)