| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Krantz Jason Ronald | Director, EXECUTIVE CHAIRMAN, 10%+ Owner | C/O DEFINITIVE HEALTHCARE CORP., 492 OLD CONNECTICUT PATH, SUITE 401, FRAMINGHAM | /s/ Maria Borda, Attorney-in-Fact | 16 Sep 2025 | 0001879507 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DH | Class A Common Stock | Tax liability | -$17K | -4.09K | -0.38% | $4.15 | 1.08M | 14 Sep 2025 | Direct | F1 |
| holding | DH | Class A Common Stock | 450K | 14 Sep 2025 | See footnote | F2 |
| Id | Content |
|---|---|
| F1 | 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. |
| F2 | Amount beneficially owned in trust by DH Holdings (f/k/a Jason R. Krantz 2009 Trust), of which the reporting person is the beneficiary. |