Vertex, Inc. — Director's Dealing 2023

May 17, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Vertex, Inc. (VERX)
CIK: 0001806837
Period of Report: 2023-05-15

Reporting Person: SCHWAB JOHN R (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-15	Class A Common Stock	M	30000	$4.70	Acquired	53316	Direct
2023-05-15	Class A Common Stock	S	30000	$19.6127	Disposed	23316	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-05-15	Stock Option	$4.70	M	30000	Disposed	2030-02-05	Class A Common Stock (30000)	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person on December 16, 2022.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $19.13 to $19.78, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F3: This option became exercisable with respect to 50% of the shares on February 5, 2022, and will vest with respect to the remaining shares on February 5, 2025.