Insider reports sale of 45,624 shares

John C. M. Farquhar reported dispositions of Common Stock under Rule 144.

Rhea-AI Filing Summary

John C. M. Farquhar reported dispositions of Common Stock under Rule 144. The filing lists three sales: 12,837 shares on 03/10/2026 for $290,886.42, 9,725 shares on 03/18/2026 for $243,125.00, and 22,562 shares on 04/10/2026 for $602,856.64. The filing also records a stock option exercise of 22,562 shares on 06/25/2024 (cash exercise).

Insights

Securities Compliance Analyst

Routine Rule 144 resale notices for an insider disposition.

The filing lists multiple open‑market or Rule 144 dispositions by John C. M. Farquhar with exact share counts and gross proceeds for each date. The entries include both recent sales in 2026 and a prior stock option exercise in 2024.

These entries are disclosures of sale activity; cash‑flow recipients are the selling holder. Subsequent filings may provide additional context about holdings or lockups.

Key Figures

Sale on 03/10/2026: 12,837 shares Sale on 03/18/2026: 9,725 shares Sale on 04/10/2026: 22,562 shares +1 more

4 metrics

Sale on 03/10/2026 12,837 shares proceeds $290,886.42

Sale on 03/18/2026 9,725 shares proceeds $243,125.00

Sale on 04/10/2026 22,562 shares proceeds $602,856.64

Stock option exercise 22,562 shares exercise date 06/25/2024; cash exercise

Key Terms

Form 144, Rule 144, Stock Option Exercise

3 terms

Form 144 regulatory

"Copies the header/filing type and lists seller transactions"

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.

Rule 144 regulatory

"Used implicitly by the Form 144 resale disclosure"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Option Exercise financial

"Securities To Be Sold table shows 'Stock Option Exercise' and 'Cash'"

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.

FAQ

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

What did HTFL insider John C. M. Farquhar sell?

He sold 12,837 shares on 03/10/2026, 9,725 shares on 03/18/2026, and 22,562 shares on 04/10/2026, as reported in the Form 144.

What proceeds were reported for Farquhar's sales in the Form 144?

The filing shows proceeds of $290,886.42 for 03/10/2026, $243,125.00 for 03/18/2026, and $602,856.64 for 04/10/2026 from the respective sales.

Was there any exercise or issuance noted in the filing?

Yes. The filing records a stock option exercise of 22,562 shares on 06/25/2024 with cash used for the exercise, as shown in the securities table.

Does the Form 144 indicate who received the sale proceeds?

The filing attributes proceeds to the selling holder(s); it lists gross proceeds per sale. It does not state additional uses of those proceeds or recipient details beyond the holder name.

Are these transactions reported as Rule 144 dispositions?

Yes. The document is a Form 144 disclosure, which reports proposed or completed sales under Rule 144 by an affiliate or control person, and it lists the specific sale dates and amounts.

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

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Accepted by SEC EDGAR 05/11/2026 - 10:20 AM 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	657005.44	85757754	05/11/2026	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 331 E. Evelyn Avenue Mountain View CA 94041	Common	03/10/2026	12837	290886.42
John C. M. Farquhar 331 E. Evelyn Avenue Mountain View CA 94041	Common	03/18/2026	9725	243125.00
John C. M. Farquhar 331 E. Evelyn Avenue Mountain View CA 94041	Common	04/10/2026	22562	602856.64

144: Remarks and Signature

Remarks
Date of Notice	05/11/2026
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/Wade Moss, 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)