Vertex (VERX) director DeStefano granted 15,638 restricted Class A shares

Rhea-AI Filing Summary

DeStefano David reported acquisition or exercise transactions in this Form 4 filing.

Vertex, Inc. director David DeStefano received a grant of 15,638 shares of Class A Common Stock as restricted stock, at a stated price of $0.00 per share. This is a compensation-related award rather than an open-market purchase or sale.

According to the filing, these restricted shares will vest on the earlier of the day immediately prior to the next annual meeting of stockholders or June 10, 2027. After this award, DeStefano holds 1,271,155 Class A shares directly, and 197,572 additional Class A shares are held indirectly by family trusts.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider DeStefano David

Role null

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	15,638	$0.00	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 1,271,155 shares (Direct, null); Class A Common Stock — 197,572 shares (Indirect, By Family Trusts)

Footnotes (1)

1. [object Object]

Key Figures

Restricted stock grant: 15,638 shares Grant price: $0.00 per share Direct holdings after grant: 1,271,155 shares +2 more

5 metrics

Restricted stock grant 15,638 shares Grant of Class A Common Stock to director

Grant price $0.00 per share Stated price for restricted stock award

Direct holdings after grant 1,271,155 shares Class A Common Stock held directly by DeStefano

Indirect holdings 197,572 shares Class A Common Stock held by family trusts

Vesting deadline June 10, 2027 Latest possible vesting date for restricted stock

Key Terms

restricted stock, Family Trusts, grant, award, or other acquisition, Class A Common Stock

4 terms

restricted stock financial

"Represents an award of restricted stock that will vest on the earlier to occur"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Family Trusts financial

"total_shares_following_transaction ... indirect ... nature_of_ownership: By Family Trusts"

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Class A Common Stock financial

"security_title: Class A Common Stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DeStefano David

(Last) (First) (Middle)

C/O VERTEX, INC.

2301 RENAISSANCE BLVD

(Street)

KING OF PRUSSIA PENNSYLVANIA 19406

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Vertex, Inc. [ VERX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	06/10/2026		A		15,638(1)	A	$0	1,271,155	D
Class A Common Stock								197,572	I	By Family Trusts

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents an award of restricted stock that will vest on the earlier to occur of (i) the day immediately prior to the date of the next annual meeting of the Company's stockholders, and (ii) June 10, 2027.

	/s/ Lisa Coleman, Attorney-in-Fact	06/12/2026
	** 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 4 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Vertex (VERX) director David DeStefano report in this Form 4?

David DeStefano reported receiving 15,638 shares of Vertex Class A Common Stock as a restricted stock award. The filing characterizes this as a grant or award acquisition, not an open-market trade, reflecting equity-based compensation rather than a discretionary stock purchase or sale.

How many Vertex (VERX) shares did David DeStefano receive in the latest grant?

He received 15,638 shares of Vertex Class A Common Stock in the reported grant. These shares are structured as restricted stock, meaning they are subject to vesting conditions before becoming fully unrestricted for him under the award’s terms.

When do David DeStefano’s new Vertex (VERX) restricted shares vest?

The restricted stock will vest on the earlier of two dates: the day immediately prior to Vertex’s next annual stockholder meeting or June 10, 2027. This creates a time-based vesting schedule tied to corporate governance timing or that specific calendar date.

How many Vertex (VERX) shares does David DeStefano hold after this Form 4?

Following the reported transactions, he holds 1,271,155 shares of Vertex Class A Common Stock directly. In addition, 197,572 Class A shares are reported as held indirectly by family trusts associated with him, indicating a sizable combined equity interest.

Was David DeStefano’s latest Vertex (VERX) transaction an open-market buy or sell?

No. The Form 4 identifies the 15,638-share transaction with code A, meaning a grant, award, or other acquisition. The price is shown as $0.00 per share, indicating a compensation grant rather than a typical open-market purchase or sale transaction.