David DeStefano - Mar 1, 2023 Form 4 Insider Report for Vertex, Inc. (VERX)

Role: PRESIDENT & CEO, Director
Signature: /s/ Lisa Coleman, Attorney-in-Fact
Stock symbol: VERX
Transactions as of: Mar 1, 2023
Transactions value $: -$456,550
Form type: 4
Date filed: 3/3/2023, 03:30 PM
Previous filing: Feb 27, 2023
Next filing: Jun 20, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	VERX	Class A Common Stock	Options Exercise	$0	+57.1K	+17.26%	$0.00	388K	Mar 1, 2023	Direct
transaction	VERX	Class A Common Stock	Tax liability	-$457K	-29.3K	-7.54%	$15.60	359K	Mar 1, 2023	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	VERX	Restricted Stock Units	Options Exercise	$0	-57.1K	-50%	$0.00	57.1K	Mar 1, 2023	Class A Common Stock	57.1K		Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.
F2	The remaining restricted stock units will vest in two equal annual installments on each of March 1, 2024 and March 1, 2025 and have no expiration date.