{"transactions":[{"id":4629719,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-10-05T20:05:08.000Z","date":"2026-10-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":12542,"price":0.9361,"value":11740.5662,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of previously reported RSUs."}],"balance_after":1785960,"source":{"system":"sec-edgar","filing":"0001193125-26-414095","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2052043/000119312526414095/ownership.xml","form_type":"4"}},{"id":1867,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-09-03T20:05:03.000Z","date":"2026-09-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":41093,"price":0.9023,"value":37078.2139,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of previously reported RSUs."}],"balance_after":1798502,"source":{"system":"sec-edgar","filing":"0001193125-26-381870","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2052043/000119312526381870/ownership.xml","form_type":"4"}},{"id":697346,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-08-04T20:05:04.000Z","date":"2026-08-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1881,"price":0.6823,"value":1283.4063,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of previously reported RSUs."}],"balance_after":1839595,"source":{"system":"sec-edgar","filing":"0001193125-26-332755","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312526332755/ownership.xml","form_type":"4"}},{"id":752024,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-06-03T20:05:09.000Z","date":"2026-06-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":164377,"price":0.99,"value":162733.23,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of previously reported RSUs."}],"balance_after":1841476,"source":{"system":"sec-edgar","filing":"0001193125-26-255409","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312526255409/ownership.xml","form_type":"4"}},{"id":791870,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-05-05T20:05:06.000Z","date":"2026-05-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1469,"price":0.99,"value":1454.31,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of previously reported RSUs."}],"balance_after":2005853,"source":{"system":"sec-edgar","filing":"0001193125-26-206349","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312526206349/ownership.xml","form_type":"4"}},{"id":879856,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-26T21:54:05.000Z","date":"2026-02-24","kind":"grant","planned":false,"acquired":true,"shares":733301,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units (\"RSUs\"), each representing a contingent right to receive one share of the Issuer's Class A Common Stock, par value $0.001, with 25% of the RSUs vesting on March 1, 2027, followed by vesting of 6.25% every three months thereafter over the subsequent three years, subject to the Reporting Person's continued service with the Issuer through each such vesting date."}],"balance_after":2007322,"source":{"system":"sec-edgar","filing":"0001193125-26-077194","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312526077194/ownership.xml","form_type":"4"}},{"id":922118,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-03T21:05:03.000Z","date":"2026-02-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1469,"price":2.32,"value":3408.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transaction reported represents the withholding of shares by the issuer to satisfy the reporting person's tax withholding obligations in connection with the vesting and settlement of previously reported RSUs."}],"balance_after":1274021,"source":{"system":"sec-edgar","filing":"0001193125-26-035486","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312526035486/ownership.xml","form_type":"4"}},{"id":944676,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-07T21:05:02.000Z","date":"2026-01-05","kind":"grant","planned":false,"acquired":true,"shares":195313,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units (\"RSUs\"), each representing a contingent right to receive one share of the Issuer's Class A Common Stock, par value $0.001 (the \"Class A Common Stock\"), with 50% of the RSUs vesting on January 1, 2027, followed by vesting in equal quarterly installments over the remaining 12 months thereafter, subject to the Reporting Person's continued service with the Issuer through each such vesting date."}],"balance_after":1275490,"source":{"system":"sec-edgar","filing":"0001193125-26-006286","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312526006286/ownership.xml","form_type":"4"}},{"id":1008309,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-04T21:03:14.000Z","date":"2025-11-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1244,"price":2.77,"value":3445.88,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the withholding of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units."}],"balance_after":1080177,"source":{"system":"sec-edgar","filing":"0001193125-25-264633","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312525264633/ownership.xml","form_type":"4"}},{"id":1024794,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-10-03T12:23:35.000Z","date":"2025-10-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":8300,"price":3.56,"value":29548.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the withholding of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units."}],"balance_after":1081421,"source":{"system":"sec-edgar","filing":"0001193125-25-229270","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000119312525229270/ownership.xml","form_type":"4"}},{"id":1074786,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-08-05T22:30:03.000Z","date":"2025-08-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1244,"price":3.74,"value":4652.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the withholding of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units."}],"balance_after":1089721,"source":{"system":"sec-edgar","filing":"0001415889-25-021086","document":"form4-08052025_100859.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000141588925021086/form4-08052025_100859.xml","form_type":"4"}},{"id":1115170,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-06-11T20:30:20.000Z","date":"2025-06-10","kind":"grant","planned":false,"acquired":true,"shares":485881,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units (\"RSUs\"), each representing a contingent right to receive one share of the Issuer's Class A Common Stock, par value $0.001 (the \"Class A Common Stock\"), with 25% of the RSUs vesting on June 1, 2026, followed by vesting of 6.25% every three months thereafter over the subsequent three years, subject to the Reporting Person's continued service with the Issuer through each such vesting date."}],"balance_after":1090965,"source":{"system":"sec-edgar","filing":"0001415889-25-016677","document":"form4-06112025_040617.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000141588925016677/form4-06112025_040617.xml","form_type":"4"}},{"id":1123123,"issuer":{"id":1538,"kind":"organization","name":"Definitive Healthcare Corp.","symbol":"DH"},"owners":[{"id":1539,"kind":"person","name":"Heller Casey","position":1,"cik":"0002052043","reported_name":"Heller Casey","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-06-04T20:25:03.000Z","date":"2025-06-02","kind":"grant","planned":false,"acquired":true,"shares":498339,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units (\"RSUs\"), each representing a contingent right to receive one share of the Issuer's Class A Common Stock, par value $0.001, with 50% of the RSUs vesting on June 1, 2026, followed by vesting of 12.5% every three months thereafter over the subsequent twelve months, subject to the Reporting Person's continued service with the Issuer through each such vesting date."}],"balance_after":605084,"source":{"system":"sec-edgar","filing":"0001415889-25-015595","document":"form4-06042025_080658.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1861795/000141588925015595/form4-06042025_080658.xml","form_type":"4"}}]}