S-1 S-1/A EX-FILING FEES 333-288733 0001464521 Heartflow, Inc. 0001464521 2025-08-01 2025-08-01 0001464521 1 2025-08-01 2025-08-01 0001464521 2 2025-08-01 2025-08-01 iso4217:USD xbrli:pure xbrli:shares

Calculation of Filing Fee Tables

S-1

Heartflow, Inc.

Table 1: Newly Registered and Carry Forward Securities

Security Type

Security Class Title

Fee Calculation or Carry Forward Rule

Amount Registered

Proposed Maximum Offering Price Per Unit

Maximum Aggregate Offering Price

Fee Rate

Amount of Registration Fee

Carry Forward Form Type

Carry Forward File Number

Carry Forward Initial Effective Date

Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward

Newly Registered Securities
Fees to be Paid 1 Equity Common stock, $0.001 par value per share 457(a) 14,375,000 $ 17.00 $ 244,375,000.00 0.0001531 $ 37,413.81
Fees Previously Paid 2 Equity Common stock, $0.001 par value per share 457(o) $ 100,000,000.00 $ 15,310.00
Carry Forward Securities
Carry Forward Securities

Total Offering Amounts:

$ 344,375,000.00

$ 52,723.81

Total Fees Previously Paid:

$ 30,620.00

Total Fee Offsets:

$ 0.00

Net Fee Due:

$ 22,103.81

Offering Note

1

1a. Includes 1,875,000 shares that the underwriters have the option to purchase, if any. 1b. Estimated solely for the purpose of computing the amount of the registration fee pursuant to Rule 457(a) under the Securities Act of 1933, as amended.

2

See notes 1a. 2a. The registrant previously paid a registration fee of $15,310.00 in connection with the initial filing of the Registration Statement on Form S-1 on July 17, 2025.