William C. Weldon - 07 Aug 2025 Form 3 Insider Report for Heartflow, Inc. (HTFL)

Reporting relationship: Director
Issuer ticker: HTFL
Reported as of: 07 Aug 2025
Net transaction value: $0
SEC form: 3
Accepted by SEC: 07 Aug 2025, 21:14:26 UTC
Prior SEC filing: 21 Nov 2022
Next SEC filing: 18 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Angela Ahmad, Attorney-in-Fact for William C. Weldon

Key filing fact

William C. Weldon filed Form 3 for Heartflow, Inc. (HTFL) on 07 Aug 2025.

Key facts

This page summarizes William C. Weldon's Form 3 filing for Heartflow, Inc. (HTFL).
0 reported transactions and 9 derivative rows are listed below.
Accepted by SEC: 07 Aug 2025, 21:14.

Change

Previous filing in this sequence was filed on 21 Nov 2022.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0001189019 Primary reporting owner

WELDON WILLIAM C

Relationship: Director
Address: C/O HEARTFLOW, INC., 331 E. EVELYN AVENUE, MOUNTAIN VIEW
Signature: /s/ Angela Ahmad, Attorney-in-Fact for William C. Weldon
Signature date: 07 Aug 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

HTFL holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 56,256
Date: 07 Aug 2025
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

HTFL holding Derivative

Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 17,123
Exercise price: $8.33
Footnotes: F1, F2

HTFL holding Derivative

Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 17,123
Exercise price: $8.33
Footnotes: F1, F2

HTFL holding Derivative

Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 34,246
Exercise price: $8.33
Footnotes: F1, F3

HTFL holding Derivative

Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 17,123
Exercise price: $8.33
Footnotes: F1, F4

HTFL holding Derivative

Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 35,638
Exercise price: $2.22
Footnotes: F1, F5

HTFL holding Derivative

Stock Option

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 57,078
Exercise price: $2.22
Footnotes: F1, F6

HTFL holding Derivative

Series D Preferred Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 83,442
Exercise price
Footnotes: F7

HTFL holding Derivative

Series F Preferred Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 25,160
Exercise price
Footnotes: F8

HTFL holding Derivative

Series F-1 Preferred Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 27,704
Exercise price
Footnotes: F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 8 footnotes

Footnote F1

The number of shares of common stock and exercise price, as applicable, give effect to the 1-for-2.92 reverse stock split of Heartflow, Inc.'s ("Heartflow") common stock, which became effective on July 31, 2025.

Footnote F2

These stock options are fully exercisable.

Footnote F3

The option is vested and exercisable as to 28,520 shares, and the remaining shares will vest and become exercisable in monthly installments until March 25, 2026, subject to continued service through the applicable vesting date.

Footnote F4

The option will vest 100% on the one-year anniversary of the closing of Heartflow's initial public offering.

Footnote F5

The option is vested and exercisable as to 13,482 shares, and the remaining shares will vest and become exercisable in monthly installments until July 1, 2027, subject to continued service through the applicable vesting date.

Footnote F6

The option is vested and exercisable as to 19,973 shares, and the remaining shares will vest and become exercisable in monthly installments until September 26, 2027, subject to continued service through the applicable vesting date.

Footnote F7

Each share of Series D preferred stock is convertible on a 1-to-0.6467 basis into shares of Heartflow's common stock and has no expiration date. The Series D preferred stock will automatically convert into the underlying shares of common stock upon the closing of Heartflow's initial public offering. The conversion rate gives effect to the 1-for-2.92 reverse stock split of Heartflow's common stock, which became effective on July 31, 2025.

Footnote F8

Each share of Series F preferred stock and Series F-1 preferred stock is convertible on a 1-to-0.3425 basis into shares of Heartflow's common stock and has no expiration date. The Series F preferred stock and Series F-1 preferred stock will automatically convert into the underlying shares of common stock upon the closing of Heartflow's initial public offering. The conversion rate gives effect to the 1-for-2.92 reverse stock split of Heartflow's common stock, which became effective on July 31, 2025.

SEC remarks

Exhibit 24 - Power of Attorney.

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