X0202 SCHEDULE 13G 0001519462 XXXXXXXX LIVE COMMON STOCK 03/24/2026 0001464521 Heartflow, Inc. 42238D107 331 E EVELYN AVENUE MOUNTAIN VIEW CA 94041 Rule 13d-1(b) HealthCor Partners Management LP DE 0.00 2082014.00 0.00 2082014.00 2082014.00 2.4 IA HealthCor Partners Fund LP DE 0.00 1248939.00 0.00 1248939.00 1248939.00 1.5 OO PRIVATE FUND MANAGED BY HEALTHCOR PARTNERS MANAGEMENT, LP HealthCor Partners Fund II, L.P. DE 0.00 833075.00 0.00 833075.00 833075.00 1.0 OO PRIVATE FUND MANAGED BY HEALTHCOR PARTNERS MANAGEMENT LP Heartflow, Inc. 331 E EVELYN AVENUE, MOUNTAIN VIEW, CALIFORNIA, 94041 HEALTHCOR PARTNERS MANAGEMENT, LP HEALTHCOR PARTNERS FUND, L.P. HEALTHCOR PARNERS FUND II, L.P. C/O HEALTHCOR PARTNERS MANAGEMENT, L.P. 186 SEVEN FARMS DRIVE, SUITE F-371 DANIEL ISLAND, SOUTH CAROLINA 29492 HEALTHCOR PARTNERS MANAGEMENT, LP - DELAWARE HEALTHCOR PARTNERS FUND, L.P. - DELAWARE HEALTHCOR PARNERS FUND II, L.P. - DELAWARE N IA HEALTHCOR PARTNERS MANAGEMENT, LP - 2,082,014 (BENEFICIALLY OWNED DUE TO MANAGING THE TWO FUNDS BELOW.) HEALTHCOR PARTNERS FUND, L.P. - 1,248,939 SHARES HEALTHCOR PARNERS FUND II, L.P. - 833,075 SHARES PRIOR TO THE DISTRIBUTION OF HCPCIV 1, LLC DISTRIBUTION OF THE FUND'S 4,615,542 SHARES, HEALTHCOR PARTNERS MANAGMENET, LP HELD 6,697,556 SHARES. HEALTHCOR PARTNERS MANAGEMENT, LP - 2.4% HEALTHCOR PARTNERS FUND, L.P. - 1.5% HEALTHCOR PARNERS FUND II, L.P. - 1% PRIOR TO THE DISTRIBUTION OF HCPCIV 1, LLC DISTRIBUTION OF THE FUND'S 4,615,542 SHARES, HEALTHCOR PARTNERS MANAGMENET, LP HELD 7.8% OF SHARE CLASS. 0 HEALTHCOR PARTNERS MANAGEMENT, LP - SHARED POWER TO VOTE 2,082,014 WITH THE FUNDS LISTED BELOW HEALTHCOR PARTNERS FUND, L.P. - 1,248,939 SHARES HEALTHCOR PARNERS FUND II, L.P. - 833,075 SHARES 0 HEALTHCOR PARTNERS MANAGEMENT, LP - SHARED POWER TO DISPOSE OF 2,082,014 WITH THE FUNDS LISTED BELOW HEALTHCOR PARTNERS FUND, L.P. - 1,248,939 SHARES HEALTHCOR PARNERS FUND II, L.P. - 833,075 SHARES HCPCIV 1, LLC DISTRIBUTED 4,615,542 SHARES TO FUND INVESTORS ON MARCH 24, 2026 N Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. HealthCor Partners Management LP ELIZABETH M. LILLEY 03/31/2026 HealthCor Partners Fund LP ELIZABETH M. LILLEY 03/31/2026 HealthCor Partners Fund II, L.P. ELIZABETH M. LILLEY 03/31/2026