| 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/ Jonathan Paris, Attorney-in-Fact | 03 Feb 2026 | 0001879507 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | DH | Class A Common Stock | Tax liability | $103,344 | -44,545 | -4.2% | $2.32 | 1,016,039 | 01 Feb 2026 | Direct | F1 |
| holding | DH | DH Holdings (f/k/a Jason R. Krantz 2009 Trust) | 450,000 | 01 Feb 2026 | See Footnote (2) | 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. |