Schedule 13G Filing for Heartflow, Inc.

HealthCor Partners Management LP, along with its affiliated funds HealthCor Partners Fund, L.P. and HealthCor Partners Fund II, L.P., has reported a significant change in their share ownership of Heartflow, Inc. as of March 31, 2026. HealthCor Partners Management LP now holds 2,082,014 shares, representing 2.4% of the class, acquired through managing the two funds. HealthCor Partners Fund, L.P. holds 1,248,939 shares (1.5%), and HealthCor Partners Fund II, L.P. holds 833,075 shares (1.0%). Prior to a distribution of 4,615,542 shares by HCPCIV 1, LLC on March 24, 2026, HealthCor Partners Management LP held a larger stake of 7.8%. The filing indicates these shares were acquired in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.