{"transactions":[{"id":4640616,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-10-14T22:05:15.000Z","date":"2026-10-12","kind":"sale","planned":true,"acquired":false,"shares":38900,"price":49.568,"value":1928195.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at price ranging from $49.52 to $50.00. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":283014,"source":{"system":"sec-edgar","filing":"0001464521-26-000154","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1900415/000146452126000154/form4.xml","form_type":"4"}},{"id":4617460,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-14T22:41:58.000Z","date":"2026-09-11","kind":"sale","planned":true,"acquired":false,"shares":3890,"price":50,"value":194500.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":321914,"source":{"system":"sec-edgar","filing":"0001464521-26-000145","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1900415/000146452126000145/form4.xml","form_type":"4"}},{"id":4617459,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-14T22:41:58.000Z","date":"2026-09-10","kind":"sale","planned":true,"acquired":false,"shares":35010,"price":46.4183,"value":1625104.683,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"This transaction was executed in multiple trades at price ranging from $45.43 to $47.78. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":325804,"source":{"system":"sec-edgar","filing":"0001464521-26-000145","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1900415/000146452126000145/form4.xml","form_type":"4"}},{"id":676086,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-08-25T21:32:10.000Z","date":"2026-08-21","kind":"sale","planned":true,"acquired":false,"shares":27230,"price":50,"value":1361500.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":360814,"source":{"system":"sec-edgar","filing":"0001464521-26-000139","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000139/form4.xml","form_type":"4"}},{"id":679843,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-08-20T21:56:13.000Z","date":"2026-08-18","kind":"sale","planned":true,"acquired":false,"shares":32676,"price":45,"value":1470420.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":388044,"source":{"system":"sec-edgar","filing":"0001464521-26-000137","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000137/form4.xml","form_type":"4"}},{"id":683408,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-08-18T22:38:34.000Z","date":"2026-08-14","kind":"sale","planned":true,"acquired":false,"shares":15560,"price":39.06,"value":607773.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":420720,"source":{"system":"sec-edgar","filing":"0001464521-26-000133","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000133/form4.xml","form_type":"4"}},{"id":689213,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-08-12T21:07:09.000Z","date":"2026-08-10","kind":"sale","planned":true,"acquired":false,"shares":22562,"price":28.31,"value":638730.22,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":436280,"source":{"system":"sec-edgar","filing":"0001464521-26-000127","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000127/form4.xml","form_type":"4"}},{"id":691820,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-08-10T21:15:46.000Z","date":"2026-08-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":1904,"price":28.82,"value":54873.28,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported."}],"balance_after":458842,"source":{"system":"sec-edgar","filing":"0001464521-26-000117","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000117/form4.xml","form_type":"4"}},{"id":691819,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-08-10T21:15:46.000Z","date":"2026-08-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":5847,"price":27.19,"value":158979.93,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported."}],"balance_after":460746,"source":{"system":"sec-edgar","filing":"0001464521-26-000117","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000117/form4.xml","form_type":"4"}},{"id":699913,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Stock Option","published_at":"2026-07-31T22:16:49.000Z","date":"2026-07-30","kind":"exercise","planned":false,"acquired":false,"shares":9737,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vests and becomes exercisable in monthly installments until November 12, 2028, subject to continued service through the applicable vesting date."}],"balance_after":182043,"derivative":{"exercise_price":9.58,"expiration_date":"2034-12-26","underlying":"Common Stock","underlying_shares":9737},"source":{"system":"sec-edgar","filing":"0001464521-26-000115","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000115/form4.xml","form_type":"4"}},{"id":699912,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Stock Option","published_at":"2026-07-31T22:16:49.000Z","date":"2026-07-30","kind":"exercise","planned":false,"acquired":false,"shares":2789,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"These stock options are fully exercisable."}],"balance_after":65703,"derivative":{"exercise_price":8.33,"expiration_date":"2031-08-24","underlying":"Common Stock","underlying_shares":2789},"source":{"system":"sec-edgar","filing":"0001464521-26-000115","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000115/form4.xml","form_type":"4"}},{"id":699911,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Stock Option","published_at":"2026-07-31T22:16:49.000Z","date":"2026-07-30","kind":"exercise","planned":false,"acquired":false,"shares":18694,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests and becomes exercisable in monthly installments until July 1, 2027, subject to continued service through the applicable vesting date."}],"balance_after":1984637,"derivative":{"exercise_price":2.22,"expiration_date":"2033-07-10","underlying":"Common Stock","underlying_shares":18694},"source":{"system":"sec-edgar","filing":"0001464521-26-000115","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000115/form4.xml","form_type":"4"}},{"id":699910,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-07-31T22:16:49.000Z","date":"2026-07-30","kind":"exercise","planned":false,"acquired":true,"shares":9737,"price":9.58,"value":93280.46,"ownership":{"direct":true},"balance_after":466593,"source":{"system":"sec-edgar","filing":"0001464521-26-000115","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000115/form4.xml","form_type":"4"}},{"id":699909,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-07-31T22:16:49.000Z","date":"2026-07-30","kind":"exercise","planned":false,"acquired":true,"shares":18694,"price":2.22,"value":41500.68,"ownership":{"direct":true},"balance_after":456856,"source":{"system":"sec-edgar","filing":"0001464521-26-000115","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000115/form4.xml","form_type":"4"}},{"id":699908,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-07-31T22:16:49.000Z","date":"2026-07-30","kind":"exercise","planned":false,"acquired":true,"shares":2789,"price":8.33,"value":23232.37,"ownership":{"direct":true},"balance_after":438162,"source":{"system":"sec-edgar","filing":"0001464521-26-000115","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000115/form4.xml","form_type":"4"}},{"id":710583,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-07-14T00:25:35.000Z","date":"2026-07-10","kind":"sale","planned":true,"acquired":false,"shares":22562,"price":27.75,"value":626095.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":435373,"source":{"system":"sec-edgar","filing":"0001464521-26-000101","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000101/form4.xml","form_type":"4"}},{"id":725435,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-06-26T22:08:50.000Z","date":"2026-06-24","kind":"sale","planned":true,"acquired":false,"shares":38900,"price":35,"value":1361500.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":457935,"source":{"system":"sec-edgar","filing":"0001464521-26-000097","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000097/form4.xml","form_type":"4"}},{"id":739707,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-06-12T22:55:24.000Z","date":"2026-06-10","kind":"sale","planned":true,"acquired":false,"shares":22562,"price":28.5,"value":643017.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":496835,"source":{"system":"sec-edgar","filing":"0001464521-26-000075","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000075/form4.xml","form_type":"4"}},{"id":780735,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-13T22:23:51.000Z","date":"2026-05-11","kind":"sale","planned":true,"acquired":false,"shares":22562,"price":29.12,"value":657005.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":519397,"source":{"system":"sec-edgar","filing":"0001464521-26-000067","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000067/form4.xml","form_type":"4"}},{"id":786716,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-08T22:42:25.000Z","date":"2026-05-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":1904,"price":29.98,"value":57081.92,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported."}],"balance_after":541959,"source":{"system":"sec-edgar","filing":"0001464521-26-000057","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000057/form4.xml","form_type":"4"}},{"id":786715,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-05-08T22:42:25.000Z","date":"2026-05-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":5300,"price":30.29,"value":160537.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported."}],"balance_after":543863,"source":{"system":"sec-edgar","filing":"0001464521-26-000057","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000057/form4.xml","form_type":"4"}},{"id":808753,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-04-14T21:53:18.000Z","date":"2026-04-10","kind":"sale","planned":true,"acquired":false,"shares":22562,"price":26.72,"value":602856.64,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":549163,"source":{"system":"sec-edgar","filing":"0001464521-26-000055","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000055/form4.xml","form_type":"4"}},{"id":832293,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-20T22:24:42.000Z","date":"2026-03-18","kind":"sale","planned":true,"acquired":false,"shares":9725,"price":25,"value":243125.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":571725,"source":{"system":"sec-edgar","filing":"0001464521-26-000046","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000046/form4.xml","form_type":"4"}},{"id":845954,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-12T23:55:55.000Z","date":"2026-03-10","kind":"sale","planned":true,"acquired":false,"shares":12837,"price":22.66,"value":290886.42,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"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."}],"balance_after":581450,"source":{"system":"sec-edgar","filing":"0001464521-26-000026","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000026/form4.xml","form_type":"4"}},{"id":845953,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-12T23:55:55.000Z","date":"2026-03-06","kind":"grant","planned":true,"acquired":true,"shares":2631,"price":16.15,"value":42490.65,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were acquired under the Issuer's Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3(c)."}],"balance_after":594287,"source":{"system":"sec-edgar","filing":"0001464521-26-000026","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000026/form4.xml","form_type":"4"}},{"id":911745,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Stock Option","published_at":"2026-02-11T01:24:49.000Z","date":"2026-02-06","kind":"grant","planned":true,"acquired":true,"shares":321259,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The option vests 1/48 on each monthly anniversary of the Vesting Commencement Date, subject to continued service through the applicable vesting date"}],"balance_after":321259,"derivative":{"exercise_price":27.74,"expiration_date":"2036-02-06","underlying":"Common Stock","underlying_shares":321259},"source":{"system":"sec-edgar","filing":"0001464521-26-000014","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000014/form4.xml","form_type":"4"}},{"id":911744,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-02-11T01:24:49.000Z","date":"2026-02-10","kind":"sale","planned":true,"acquired":false,"shares":22562,"price":27.46,"value":619552.52,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at price ranging from $26.74 to $29.14. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":591656,"source":{"system":"sec-edgar","filing":"0001464521-26-000014","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000014/form4.xml","form_type":"4"}},{"id":911743,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-02-11T01:24:49.000Z","date":"2026-02-06","kind":"grant","planned":true,"acquired":true,"shares":183850,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents restricted stock units (\"RSUs\"), with a vesting commencement date of February 6, 2026 (the \"Vesting Commencement Date\"). 1/16th of the RSUs vest on each quarterly anniversary of the Vesting Commencement Date,\nsubject to continued service through the applicable vesting date."}],"balance_after":614218,"source":{"system":"sec-edgar","filing":"0001464521-26-000014","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000014/form4.xml","form_type":"4"}},{"id":911742,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-02-11T01:24:49.000Z","date":"2026-02-06","kind":"tax_withholding","planned":true,"acquired":false,"shares":1541,"price":27.74,"value":42747.34,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported."}],"balance_after":430368,"source":{"system":"sec-edgar","filing":"0001464521-26-000014","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452126000014/form4.xml","form_type":"4"}},{"id":1001922,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-11-13T01:43:49.000Z","date":"2025-11-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":1339,"price":32.56,"value":43597.84,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares that have been retained by the Issuer to satisfy income tax withholding and remittance obligations in connection with the vesting and net settlement of restricted stock units previously reported."}],"balance_after":431909,"source":{"system":"sec-edgar","filing":"0001464521-25-000031","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000146452125000031/form4.xml","form_type":"4"}},{"id":1070086,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Stock Option","published_at":"2025-08-12T01:01:17.000Z","date":"2025-08-07","kind":"grant","planned":false,"acquired":true,"shares":314603,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vests 1/48 on each monthly anniversary of the Vesting Commencement Date, subject to continued service through the applicable vesting date."}],"balance_after":314603,"derivative":{"exercise_price":19,"expiration_date":"2035-08-07","underlying":"Common Stock","underlying_shares":314603},"source":{"system":"sec-edgar","filing":"0001628280-25-039735","document":"wk-form4_1754960473.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000162828025039735/wk-form4_1754960473.xml","form_type":"4"}},{"id":1070085,"issuer":{"id":3993,"kind":"organization","name":"Heartflow, Inc.","symbol":"HTFL"},"owners":[{"id":19886,"kind":"person","name":"Farquhar John C.M.","position":1,"cik":"0001900415","reported_name":"Farquhar John C.M.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2025-08-12T01:01:17.000Z","date":"2025-08-07","kind":"grant","planned":false,"acquired":true,"shares":59868,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units (\"RSUs\"), with a vesting commencement date of August 7, 2025 (the \"Vesting Commencement Date\"). 1/16th of the RSUs vest on each quarterly anniversary of the Vesting Commencement Date, subject to continued service through the applicable vesting date."}],"balance_after":433248,"source":{"system":"sec-edgar","filing":"0001628280-25-039735","document":"wk-form4_1754960473.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1464521/000162828025039735/wk-form4_1754960473.xml","form_type":"4"}}]}