| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Leib Ryan J | Chief Accounting Officer | C/O VERTEX, INC., 2301 RENAISSANCE BLVD., KING OF PRUSSIA | /s/ Lisa Coleman, Attorney-in-Fact | 14 May 2025 | 0001659260 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VERX | Class A Common Stock | Sale | $218,690 | -5,755 | -100% | $38.00 | 0 | 13 May 2025 | Direct |