{"transactions":[{"id":691047,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24715,"kind":"organization","name":"AH Bio Fund IV, L.P.","position":1,"cik":"0001889476","reported_name":"AH Bio Fund IV, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24716,"kind":"organization","name":"AH Equity Partners Bio IV, L.L.C.","position":2,"cik":"0001889898","reported_name":"AH Equity Partners Bio IV, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10500,"kind":"person","name":"Andreessen Marc L","position":3,"cik":"0001160077","reported_name":"Andreessen Marc L","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":20480,"kind":"person","name":"HOROWITZ BENJAMIN A","position":4,"cik":"0001166586","reported_name":"HOROWITZ BENJAMIN A","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-08-11T21:53:03.000Z","date":"2026-08-07","kind":"exercise","planned":false,"acquired":false,"shares":40000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By AH Bio Fund IV, L.P."},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Series A Preferred Stock automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 4.38-for-1 basis.  The Series A Preferred Stock had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Series A Preferred Stock automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 4.38-for-1 basis.  The Series A Preferred Stock had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Series A Preferred Stock automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 4.38-for-1 basis.  The Series A Preferred Stock had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The reported securities are held by AH Bio Fund IV, L.P. (\"AH Bio Fund IV\"), for itself and as nominee for AH Bio Fund IV-B, L.P., AH 2022 Annual Fund, L.P., AH 2022 Annual Fund-B, L.P., AH 2022 Annual Fund-QC, L.P. and CLF Partners III, LP. AH Equity Partners Bio IV, L.L.C. (\"AH EP Bio IV\") is the general partner of AH Bio Fund IV and has sole voting and dispositive power with regard to the securities held by AH Bio Fund IV for itself and as nominee. The managing members of AH EP Bio IV are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz may be deemed to share voting and dispositive power with respect to the securities held by AH Bio Fund IV for itself and as nominee."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(Continued from Footnote 2) Each of the Reporting Persons disclaims the existence of a \"group\" and disclaims beneficial ownership of the securities held by AH Bio Fund IV for itself and as nominee (and this report shall not be deemed an admission that any such person is the beneficial owner of such securities), except to the extent of such person's pecuniary interest therein, if any."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9132420},"source":{"system":"sec-edgar","filing":"0001231919-26-000859","document":"form4-08112026_090855.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1160077/000123191926000859/form4-08112026_090855.xml","form_type":"4"}},{"id":691046,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24715,"kind":"organization","name":"AH Bio Fund IV, L.P.","position":1,"cik":"0001889476","reported_name":"AH Bio Fund IV, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24716,"kind":"organization","name":"AH Equity Partners Bio IV, L.L.C.","position":2,"cik":"0001889898","reported_name":"AH Equity Partners Bio IV, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10500,"kind":"person","name":"Andreessen Marc L","position":3,"cik":"0001160077","reported_name":"Andreessen Marc L","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":20480,"kind":"person","name":"HOROWITZ BENJAMIN A","position":4,"cik":"0001166586","reported_name":"HOROWITZ BENJAMIN A","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:53:03.000Z","date":"2026-08-07","kind":"purchase","planned":false,"acquired":true,"shares":1100000,"price":18,"value":19800000.0,"ownership":{"direct":false,"nature":"By AH Bio Fund IV, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The reported securities are held by AH Bio Fund IV, L.P. (\"AH Bio Fund IV\"), for itself and as nominee for AH Bio Fund IV-B, L.P., AH 2022 Annual Fund, L.P., AH 2022 Annual Fund-B, L.P., AH 2022 Annual Fund-QC, L.P. and CLF Partners III, LP. AH Equity Partners Bio IV, L.L.C. (\"AH EP Bio IV\") is the general partner of AH Bio Fund IV and has sole voting and dispositive power with regard to the securities held by AH Bio Fund IV for itself and as nominee. The managing members of AH EP Bio IV are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz may be deemed to share voting and dispositive power with respect to the securities held by AH Bio Fund IV for itself and as nominee."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(Continued from Footnote 2) Each of the Reporting Persons disclaims the existence of a \"group\" and disclaims beneficial ownership of the securities held by AH Bio Fund IV for itself and as nominee (and this report shall not be deemed an admission that any such person is the beneficial owner of such securities), except to the extent of such person's pecuniary interest therein, if any."}],"balance_after":10232420,"source":{"system":"sec-edgar","filing":"0001231919-26-000859","document":"form4-08112026_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1160077/000123191926000859/form4-08112026_090855.xml","form_type":"4"}},{"id":691045,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24715,"kind":"organization","name":"AH Bio Fund IV, L.P.","position":1,"cik":"0001889476","reported_name":"AH Bio Fund IV, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24716,"kind":"organization","name":"AH Equity Partners Bio IV, L.L.C.","position":2,"cik":"0001889898","reported_name":"AH Equity Partners Bio IV, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":10500,"kind":"person","name":"Andreessen Marc L","position":3,"cik":"0001160077","reported_name":"Andreessen Marc L","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":20480,"kind":"person","name":"HOROWITZ BENJAMIN A","position":4,"cik":"0001166586","reported_name":"HOROWITZ BENJAMIN A","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:53:03.000Z","date":"2026-08-07","kind":"exercise","planned":false,"acquired":true,"shares":9132420,"ownership":{"direct":false,"nature":"By AH Bio Fund IV, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Series A Preferred Stock automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering for no additional consideration, on a 4.38-for-1 basis.  The Series A Preferred Stock had no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The reported securities are held by AH Bio Fund IV, L.P. (\"AH Bio Fund IV\"), for itself and as nominee for AH Bio Fund IV-B, L.P., AH 2022 Annual Fund, L.P., AH 2022 Annual Fund-B, L.P., AH 2022 Annual Fund-QC, L.P. and CLF Partners III, LP. AH Equity Partners Bio IV, L.L.C. (\"AH EP Bio IV\") is the general partner of AH Bio Fund IV and has sole voting and dispositive power with regard to the securities held by AH Bio Fund IV for itself and as nominee. The managing members of AH EP Bio IV are Marc Andreessen and Ben Horowitz. Marc Andreessen and Ben Horowitz may be deemed to share voting and dispositive power with respect to the securities held by AH Bio Fund IV for itself and as nominee."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(Continued from Footnote 2) Each of the Reporting Persons disclaims the existence of a \"group\" and disclaims beneficial ownership of the securities held by AH Bio Fund IV for itself and as nominee (and this report shall not be deemed an admission that any such person is the beneficial owner of such securities), except to the extent of such person's pecuniary interest therein, if any."}],"balance_after":9132420,"source":{"system":"sec-edgar","filing":"0001231919-26-000859","document":"form4-08112026_090855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1160077/000123191926000859/form4-08112026_090855.xml","form_type":"4"}},{"id":690810,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24622,"kind":"person","name":"Chimovits Erez","position":1,"cik":"0001706399","reported_name":"Chimovits Erez","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-08-11T21:31:57.000Z","date":"2026-08-07","kind":"exercise","planned":false,"acquired":false,"shares":40000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held of record by OrbiMed Private Investments IX, LP (\"OPI IX\"). OrbiMed Capital GP IX LLC (\"GP IX\") is the general partner of OPI IX. OrbiMed Advisors LLC (\"OrbiMed Advisors\"), a registered investment adviser under the Investment Advisers Act of 1940, as amended, is the managing member of GP IX. By virtue of such relationships, GP IX and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI IX. OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OPI IX."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Each of the Reporting Person, OrbiMed Advisors, GP IX, and Genesis GP disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Person, OrbiMed Advisors, GP IX, or Genesis GP is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9132420},"source":{"system":"sec-edgar","filing":"0000947871-26-000783","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1706399/000094787126000783/ownership.xml","form_type":"4"}},{"id":690809,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24622,"kind":"person","name":"Chimovits Erez","position":1,"cik":"0001706399","reported_name":"Chimovits Erez","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:31:57.000Z","date":"2026-08-07","kind":"purchase","planned":false,"acquired":true,"shares":273333,"price":18,"value":4919994.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are held of record by OrbiMed Genesis Master Fund, L.P. (\"Genesis\"). OrbiMed Genesis GP LLC (\"Genesis GP\") is the general partner of Genesis. OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by Genesis and may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by Genesis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Each of the Reporting Person, OrbiMed Advisors, GP IX, and Genesis GP disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Person, OrbiMed Advisors, GP IX, or Genesis GP is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose."}],"balance_after":273333,"source":{"system":"sec-edgar","filing":"0000947871-26-000783","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1706399/000094787126000783/ownership.xml","form_type":"4"}},{"id":690808,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24622,"kind":"person","name":"Chimovits Erez","position":1,"cik":"0001706399","reported_name":"Chimovits Erez","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:31:57.000Z","date":"2026-08-07","kind":"purchase","planned":false,"acquired":true,"shares":1666667,"price":18,"value":30000006.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held of record by OrbiMed Private Investments IX, LP (\"OPI IX\"). OrbiMed Capital GP IX LLC (\"GP IX\") is the general partner of OPI IX. OrbiMed Advisors LLC (\"OrbiMed Advisors\"), a registered investment adviser under the Investment Advisers Act of 1940, as amended, is the managing member of GP IX. By virtue of such relationships, GP IX and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI IX. OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OPI IX."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Each of the Reporting Person, OrbiMed Advisors, GP IX, and Genesis GP disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Person, OrbiMed Advisors, GP IX, or Genesis GP is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose."}],"balance_after":11901826,"source":{"system":"sec-edgar","filing":"0000947871-26-000783","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1706399/000094787126000783/ownership.xml","form_type":"4"}},{"id":690807,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24622,"kind":"person","name":"Chimovits Erez","position":1,"cik":"0001706399","reported_name":"Chimovits Erez","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:31:57.000Z","date":"2026-08-07","kind":"exercise","planned":false,"acquired":true,"shares":9132420,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held of record by OrbiMed Private Investments IX, LP (\"OPI IX\"). OrbiMed Capital GP IX LLC (\"GP IX\") is the general partner of OPI IX. OrbiMed Advisors LLC (\"OrbiMed Advisors\"), a registered investment adviser under the Investment Advisers Act of 1940, as amended, is the managing member of GP IX. By virtue of such relationships, GP IX and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI IX. OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OPI IX."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Each of the Reporting Person, OrbiMed Advisors, GP IX, and Genesis GP disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), except to the extent of its pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Person, OrbiMed Advisors, GP IX, or Genesis GP is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose."}],"balance_after":10235159,"source":{"system":"sec-edgar","filing":"0000947871-26-000783","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1706399/000094787126000783/ownership.xml","form_type":"4"}},{"id":691206,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24290,"kind":"person","name":"ORBIMED ADVISORS LLC","position":1,"cik":"0001055951","reported_name":"ORBIMED ADVISORS LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24739,"kind":"person","name":"OrbiMed Capital GP IX LLC","position":2,"cik":"0001920574","reported_name":"OrbiMed Capital GP IX LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24740,"kind":"person","name":"OrbiMed Genesis GP LLC","position":3,"cik":"0001808744","reported_name":"OrbiMed Genesis GP LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Stock","published_at":"2026-08-11T21:27:59.000Z","date":"2026-08-07","kind":"exercise","planned":false,"acquired":false,"shares":40000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Each share of Series A Preferred Stock automatically converted into shares of the Issuer's Common Stock on a one-for-4.38 basis upon the closing of the Issuer's initial public offering on August 7, 2026 without payment of consideration. The Series A Preferred Stock has no expiration date."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held of record by OrbiMed Private Investments IX, LP (\"OPI IX\"). OrbiMed Capital GP IX LLC (\"GP IX\") is the general partner of OPI IX. OrbiMed Advisors LLC (\"OrbiMed Advisors\"), a registered investment adviser under the Investment Advisers Act of 1940, as amended, is the managing member of GP IX. By virtue of such relationships, GP IX and OrbiMed Advisors may be deemed to have voting and investment power with respect to the securities held by OPI IX. OrbiMed Advisors exercises this investment and voting power through a management committee comprised of Carl L. Gordon, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by OPI IX."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"This report on Form 4 is jointly filed by OrbiMed Advisors, GP IX, and Genesis GP. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), except to the extent of its pecuniary interest therein, if any. The Reporting Persons have designated Erez Chimovits, an employee of OrbiMed Advisors, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of such entity or person is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9132420},"source":{"system":"sec-edgar","filing":"0000947871-26-000782","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1055951/000094787126000782/ownership.xml","form_type":"4"}},{"id":691205,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24290,"kind":"person","name":"ORBIMED ADVISORS LLC","position":1,"cik":"0001055951","reported_name":"ORBIMED ADVISORS LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24739,"kind":"person","name":"OrbiMed Capital GP IX LLC","position":2,"cik":"0001920574","reported_name":"OrbiMed Capital GP IX LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24740,"kind":"person","name":"OrbiMed Genesis GP LLC","position":3,"cik":"0001808744","reported_name":"OrbiMed Genesis GP LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:27:59.000Z","date":"2026-08-07","kind":"purchase","planned":false,"acquired":true,"shares":273333,"price":18,"value":4919994.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"These securities are held of record by OrbiMed Genesis Master Fund, L.P. (\"Genesis\"). OrbiMed Genesis GP LLC (\"Genesis GP\") is the general partner of Genesis. OrbiMed Advisors is the managing member of Genesis GP. By virtue of such relationships, Genesis GP and OrbiMed Advisors may be deemed to have voting and investment power over the securities held by Genesis and may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, W. Carter Neild, and Geoffrey C. Hsu, each of whom disclaims beneficial ownership of the shares held by Genesis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"This report on Form 4 is jointly filed by OrbiMed Advisors, GP IX, and Genesis GP. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), except to the extent of its pecuniary interest therein, if any. The Reporting Persons have designated Erez Chimovits, an employee of OrbiMed Advisors, to serve on the Issuer's board of directors. This report shall not be deemed an admission that any of such entity or person is a beneficial owner of such securities for purposes of Section 16 of the Exchange Act, or for any other purpose."}],"balance_after":273333,"source":{"system":"sec-edgar","filing":"0000947871-26-000782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1055951/000094787126000782/ownership.xml","form_type":"4"}},{"id":691204,"issuer":{"id":4564,"kind":"organization","name":"Braveheart Bio, Inc."},"owners":[{"id":24290,"kind":"person","name":"ORBIMED ADVISORS LLC","position":1,"cik":"0001055951","reported_name":"ORBIMED ADVISORS LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24739,"kind":"person","name":"OrbiMed Capital GP IX LLC","position":2,"cik":"0001920574","reported_name":"OrbiMed Capital GP IX LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24740,"kind":"person","name":"OrbiMed Genesis GP LLC","position":3,"cik":"0001808744","reported_name":"OrbiMed Genesis GP LLC","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-11T21:27:59.000Z","date":"2026-08-07","kind":"purchase","planned":false,"acquired":true,"shares":1666667,"price":18,"value":30000006.0,"ownership":{"direct":false,"nature":"See footnotes"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Reflects shares of the Issuer's Common Stock purchased in the Issuer's initial public offering."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held of record by OrbiMed Private Investments IX, LP (\"OPI IX\"). 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