John C. M. Farquhar plans HTFL share sale

John C. M. Farquhar filed to sell 22,562 shares of common stock of HTFL through Fidelity Brokerage Services LLC on or after August 10, 2026 on NASDAQ, with an indicated aggregate market value of $638,730.22.

Rhea-AI Filing Summary

John C. M. Farquhar filed to sell 22,562 shares of common stock of HTFL through Fidelity Brokerage Services LLC on or after August 10, 2026 on NASDAQ, with an indicated aggregate market value of $638,730.22. The shares relate to a stock option exercise dated June 25, 2024 and will be sold for cash.

The filing also lists sales of HTFL common stock during the prior three months: 22,562 shares for $657,005.44 on May 11, 2026, 22,562 shares for $643,017.00 on June 10, 2026, 38,900 shares for $1,361,500.00 on June 24, 2026, and 22,562 shares for $626,095.50 on July 10, 2026.

Key Figures

Planned shares to be sold: 22,562 shares Planned sale aggregate market value: $638,730.22 Sale on May 11, 2026: 22,562 shares for $657,005.44 +4 more

7 metrics

Planned shares to be sold 22,562 shares Common stock to be sold on or after August 10, 2026

Planned sale aggregate market value $638,730.22 Indicated value for 22,562 shares of common stock

Sale on May 11, 2026 22,562 shares for $657,005.44 Common stock sold during past three months

Sale on June 10, 2026 22,562 shares for $643,017.00 Common stock sold during past three months

Sale on June 24, 2026 38,900 shares for $1,361,500.00 Largest single sale listed in the three-month period

Sale on July 10, 2026 22,562 shares for $626,095.50 Common stock sold during past three months

Stock option exercise date June 25, 2024 Date of stock option exercise related to the 22,562 shares

Key Terms

Form 144, Stock Option Exercise, aggregate market value, Fidelity Brokerage Services LLC, +1 more

5 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock Option Exercise financial

"Common | 06/25/2024 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

aggregate market value financial

"Common | Fidelity Brokerage Services LLC ... | 638730.22"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Fidelity Brokerage Services LLC financial

"Common | Fidelity Brokerage Services LLC 900 Salem Street"

cash transaction financial

"Common | 06/25/2024 ... 22562 | 06/25/2024 | Cash"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What HTFL shares does John C. M. Farquhar plan to sell under this filing?

The filing covers a planned sale of 22,562 shares of HTFL common stock. These shares are to be sold through Fidelity Brokerage Services LLC on or after August 10, 2026 on NASDAQ for cash.

What is the aggregate market value of the planned HTFL share sale?

The planned sale of 22,562 HTFL shares has an indicated aggregate market value of $638,730.22. This value provides context for the potential size of the transaction relative to prior reported sales.

How are the HTFL shares in this Form 144 related to a stock option exercise?

The 22,562 HTFL shares covered by this notice are tied to a stock option exercise dated June 25, 2024. The filing notes the securities were acquired from the issuer via stock option exercise and are now being registered for potential cash sale.

What HTFL share sales has John C. M. Farquhar reported in the past three months?

Reported past three-month sales include 22,562 shares for $657,005.44 on May 11, 2026, 22,562 for $643,017.00 on June 10, 2026, 38,900 for $1,361,500.00 on June 24, 2026, and 22,562 for $626,095.50 on July 10, 2026.

Through which broker and market will the HTFL shares be sold?

The filing lists Fidelity Brokerage Services LLC as the broker for the planned sale of 22,562 HTFL shares. The common stock is indicated to trade on NASDAQ, and the sale is described as a cash transaction.

Who is the reporting person in this HTFL Form 144 notice?

The reporting person is John C. M. Farquhar, with an address at 135 Main Street, Suite 1000, San Francisco, CA 94105. The notice details his planned and recent transactions in HTFL common stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 08/10/2026 - 01:00 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001900415
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Heartflow, Inc.
SEC File Number	001-42790
Address of Issuer	135 MAIN STREET, SUITE 1000 SAN FRANCISCO CALIFORNIA 94105
Phone	650-241-1221
Name of Person for Whose Account the Securities are To Be Sold	Farquhar John C.M.
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	22562	638730.22	86240828	08/10/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/25/2024	Stock Option Exercise	Issuer			22562	06/25/2024	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
John C. M. Farquhar 135 Main Street Suite 1000 San Francisco CA 94105	Common	05/11/2026	22562	657005.44
John C. M. Farquhar 135 Main Street Suite 1000 San Francisco CA 94105	Common	06/10/2026	22562	643017.00
John C. M. Farquhar 135 Main Street Suite 1000 San Francisco CA 94105	Common	06/24/2026	38900	1361500.00
John C. M. Farquhar 135 Main Street Suite 1000 San Francisco CA 94105	Common	07/10/2026	22562	626095.50

144: Remarks and Signature

Remarks
Date of Notice	08/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/12/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for John C. M. Farquhar
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)