| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Heller Casey | Chief Financial Officer | C/O DEFINITIVE HEALTHCARE CORP., 492 OLD CONNECTICUT PATH, SUITE 401, FRAMINGHAM | /s/ Jonathan Paris, Attorney-in-Fact | 2025-11-04 | 0002052043 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DH | Class A Common Stock | Tax liability | -$3.45K | -1.24K | -0.12% | $2.77 | 1.08M | Nov 1, 2025 | Direct | F1 |
| 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. |