SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Tensile Capital Management LP (Last) (First) (Middle) 700 LARKSPUR LANDING CIRCLE, SUITE 255 (Street) LARKSPUR CA 94939 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 07/27/2022	3. Issuer Name and Ticker or Trading Symbol Vertex, Inc. [ VERX ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A common stock	5,220,258	I	By Tensile Capital Partners Master Fund LP(1)(2)(3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	(4)	10/25/2022	Class A common stock	750,000	7.85	I	By Tensile Capital Partners Master Fund LP(1)(2)(3)

Explanation of Responses:

1. The shares and stock option are held directly by Tensile Capital Partners Master Fund LP. The reporting persons ("Reporting Persons") are Douglas J. Dossey, Arthur C. Young, Tensile Capital Management LP, Tensile Capital Management GP LLC, Tensile Capital GP LLC and Tensile Capital Partners Master Fund LP.

2. The general partner and investment adviser of Tensile Capital Partners Master Fund LP are Tensile Capital GP LLC and Tensile Capital Management LP, respectively. The general partner of Tensile Capital Management LP is Tensile Capital Management GP LLC.

3. Douglas J. Dossey and Arthur C. Young are the controlling principals of Tensile Capital Management LP, Tensile Capital Management GP LLC, and Tensile Capital GP LLC. Each of the Reporting Persons may be deemed to share beneficial ownership of the Securities with Tensile Capital Partners Master Fund LP. Each of the Reporting Persons disclaim beneficial ownership of the Securities, except to the extent of such person's pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is the beneficial owner of the Securities for purposes of Section 16 of the Securities and Exchange Act of 1934 or for any other purpose.

4. Stock option is immediately exercisable until expiration date.

Remarks:

	Tensile Capital Partners Master Fund LP, by: Tensile Capital GP, LLC, its General Partner, /s/ Arthur Young, Managing Partner	08/05/2022
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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