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Heartflow (NASDAQ: HTFL) CEO sells 15,560 shares under 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Heartflow, Inc. (HTFL) reported that Chief Executive Officer John C.M. Farquhar sold 15,560 shares of common stock on August 14, 2026 at $39.06 per share in an open-market or private transaction. After this sale, he directly holds 420,720 shares of Heartflow common stock. The transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2025.

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Insider Farquhar John C.M.
Role Chief Executive Officer
Sold 15,560 shs ($608K)
Type Security Shares Price Value
Sale Common Stock F1 15,560 $39.06 $608K
Holdings After Transaction: Common Stock — 420,720 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.
Shares sold 15,560 shares Common stock sale on August 14, 2026
Sale price per share $39.06 per share Price for the 15,560 common shares sold
Shares held after transaction 420,720 shares Direct ownership by CEO after the August 14, 2026 sale
Total sell transactions 1 transaction SellCount in transaction summary
Net shares sold 15,560 shares NetBuySellShares reported as -15,560 (net-sell)
10b5-1 plan adoption date September 12, 2025 Rule 10b5-1 trading plan used for this sale
Rule 10b5-1 trading plan regulatory
"The transaction was effected pursuant to a Rule 10b5-1 trading plan"
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.
Form 4 regulatory
"The transaction reported in this Form 4 was effected pursuant to"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
open market or private transaction financial
"transaction_code_description: Sale in open market or private transaction"

FAQ

What insider transaction did HTFL report for CEO John C.M. Farquhar?
Heartflow CEO John C.M. Farquhar sold 15,560 shares of common stock on August 14, 2026 at $39.06 per share. The sale was reported as an open-market or private transaction under a Rule 10b5-1 trading plan.

How many HTFL shares does the CEO hold after the reported sale?
After the reported sale, CEO John C.M. Farquhar directly holds 420,720 shares of Heartflow common stock. This figure reflects his ownership immediately following the August 14, 2026 disposition of 15,560 shares.

Was the HTFL CEO’s August 14, 2026 sale under a Rule 10b5-1 plan?
Yes. The filing states the August 14, 2026 sale was effected under a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2025, indicating the trades were pre-arranged.

What was the sale price for the HTFL shares sold by the CEO?
The reported sale price was $39.06 per share for the 15,560 Heartflow common shares sold on August 14, 2026. The price is identified as a per-share value for this open-market or private transaction.

How many total HTFL shares were sold in this Form 4 filing?
The Form 4 reports a single sale of 15,560 shares of Heartflow common stock. The transaction summary shows a net-sell direction with total sellShares of 15,560 and no reported purchases or option exercises.

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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/14/2026S(1)15,560D$39.06420,720D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 attorney08/18/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR