What SEC filings does Vertex, Inc. submit to the SEC?

Vertex, Inc. (VERX) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about VERX?

A Form 4 for VERX discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Vertex, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for VERX?

The 10-K is Vertex, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all VERX SEC filings directly on EDGAR?

You can view all historical Vertex, Inc. filings on the SEC EDGAR company page for VERX. Each filing card on this page links directly to the original SEC document.

How often does Vertex, Inc. file with the SEC?

Vertex, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling VERX shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

VERX SEC Filing News — Vertex, Inc.

Latest SEC filings for Vertex, Inc. (VERX) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-09.

Vertex, Inc., together with its subsidiaries, provides enterprise tax technology solutions for retail trade, wholesale trade, and manufacturing industries in the United States and internationally. The company offers transaction determination; compliance and reporting, including workflow management tools; tax data management and document management solutions; analytics and insights; pre-built integration that includes mapping data fields, and business logic and configurations; industry-specific s…

Sector: Technology Industry: Software - Application Market Cap: $2.2B CIK: 1806837

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

What you're looking at: Each item below is parsed from an actual SEC filing submitted by Vertex, Inc.. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.

VERX Filing Activity Snapshot 2026-02-26 — 2026-10-09

Insider Transactions (Form 4)

1 buy vs 1 sell

Insider buying and selling activity is balanced in this period.

Largest Form 144 Filing

$150.5K

ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001 (10% Owner) · 2026-03-09

10,000 shares · Form 4

Form 144 Notices

Proposed insider sale filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 12 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 12 filings in this group are Form 4s for Vertex, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 12 insider filings shown, the breakdown is 9 compensation award, 1 option exercise, 1 open-market purchase and 1 open-market sale. 2 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×9: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Option exercise ×1: The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Open-market purchase ×1: The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.
Open-market sale ×1: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Form 4 Compensation award Tax / Compensation Filing 2026-10-09

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Saha Debanjan (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	11,199	—	—

Filing: Form 4 (Insider Transaction) Insider: Saha Debanjan (Director) Shares: 11,199

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

DeStefano David (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: DeStefano David (Director) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Gayton Bradley M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: Gayton Bradley M (Director) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Saunders Philip Seth (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: Saunders Philip Seth (Director) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Radcliffe Amanda Westphal (Director, 10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: Radcliffe Amanda Westphal (Director, 10% Owner) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Stamm John Richard (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: Stamm John Richard (Director) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

ANDERSEN ERIC C. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: ANDERSEN ERIC C. (Director) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Thompson Stefanie Westphal (Director, 10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: Thompson Stefanie Westphal (Director, 10% Owner) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-12

VERX insider Form 4 filed for equity award, exercise, or tax withholding

Mendola Mark J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	15,638	—	—

Filing: Form 4 (Insider Transaction) Insider: Mendola Mark J (Director) Shares: 15,638

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-06-01

VERX insider DeStefano David (Director) sold 6,460 shares (~$82.4K)

DeStefano David, listed as Director at Vertex, Inc., reported an open-market sale of 6,460 VERX shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	6,460	$12.75	$82.4K

Filing: Form 4 (Insider Transaction) Insider: DeStefano David (Director) Shares: 6,460 Est. Value: $82.4K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-03-09

VERX insider ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001 (10% Owner) bought 10,000 shares (~$150.5K)

ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001, listed as 10% Owner at Vertex, Inc., reported an open-market purchase of 10,000 VERX shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	10,000	$15.05	$150.5K

Filing: Form 4 (Insider Transaction) Insider: ITEM SECOND IRR. TRUST FBO KYLE R. WESTPHAL u/a of JEFFREY R. WESTPHAL dated October 5, 2001 (10% Owner) Shares: 10,000 Est. Value: $150.5K

View on SEC EDGAR → Open Filing Document →

Form 4 Option exercise Tax / Compensation Filing 2026-02-26

VERX insider Form 4 filed for equity award, exercise, or tax withholding

DeStefano David (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`M`	Option exercise	109,233	—	—
`F`	Tax withholding on vested shares	51,983	$13.26	$689.3K
`M`	Option exercise derivative · Restricted Stock Units	109,233	—	—

Filing: Form 4 (Insider Transaction) Insider: DeStefano David (Director) Shares: 161,216

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 1 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Vertex, Inc. has 1 such notice in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-05-28

VERX Form 144 filed for proposed insider sale by David DeStefano (6,460 shares) ~$82.4K

David DeStefano filed a Form 144 with the SEC indicating intent to sell VERX (Vertex, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: David DeStefano Shares: 6,460 Est. Value: $82.4K

View on SEC EDGAR → Open Filing Document →

Material Events 5 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 5 in this period for Vertex, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-10-01

VERX filed 8-K — material company event

Vertex, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-08-03

VERX filed 8-K — material company event

Vertex, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-06-11

VERX filed 8-K — material company event

Vertex, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-05-07

VERX filed 8-K — material company event

Vertex, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-04-28

VERX filed 8-K — material company event

Vertex, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 2 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 2 quarterly reports (10-Q) for Vertex, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-04

VERX filed Quarterly Report (10-Q)

Vertex, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

Form 10-Q Quarterly Report 2026-05-07

VERX filed Quarterly Report (10-Q)

Vertex, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Vertex, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on VERX. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — VERX SEC Filings

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VERX Full Analysis

Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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