What SEC filings does NetScout Systems, Inc. submit to the SEC?

NetScout Systems, Inc. (NTCT) 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 NTCT?

A Form 4 for NTCT 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 NetScout Systems, 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 NTCT?

The 10-K is NetScout Systems, 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 NTCT SEC filings directly on EDGAR?

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

How often does NetScout Systems, Inc. file with the SEC?

NetScout Systems, 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 NTCT shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

NTCT SEC Filing News — NetScout Systems, Inc.

Latest SEC filings for NetScout Systems, Inc. (NTCT) 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: 2026-09-14.

NetScout Systems, Inc. provides carrier service assurance, cybersecurity, and Distributed Denial-of-Service (DDoS) solutions to protect digital business services against disruptions. It offers nGeniusONE management software to predict, preempt, and resolve network and service delivery problems, as well as facilitate the optimization and capacity planning of their network infrastructures; and specialized platforms and analytic modules to analyze and troubleshoot traffic in radio access and Wi-Fi …

Sector: Technology Industry: Software - Infrastructure Market Cap: $2.8B CIK: 1078075

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for NTCT currently lean bearish. Of the 20 filing records displayed, 4 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

NTCT Filing Activity Snapshot 2026-08-11 — 2026-09-14

Insider Transactions (Form 4)

0 buys vs 4 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$411.2K

Michael Szabados · 2026-09-10

11,000 shares · Form 144

Form 144 Notices

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

Insider Transactions 14 · 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 14 filings in this group are Form 4s for NetScout Systems, 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 14 insider filings shown, the breakdown is 8 compensation award, 4 open-market sale and 2 option exercise. 4 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×8: 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.
Open-market sale ×4: 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.
Option exercise ×2: The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Form 4 Open-market sale Insider Selling 2026-09-14

NTCT insider Perretta Christopher (Director) sold 7,000 shares (~$266.0K)

Perretta Christopher, listed as Director at NETSCOUT SYSTEMS INC, reported an open-market sale of 7,000 NTCT 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	7,000	$38.00	$266.0K

Filing: Form 4 (Insider Transaction) Insider: Perretta Christopher (Director) Shares: 7,000 Est. Value: $266.0K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

VITALE VIVIAN 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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: VITALE VIVIAN M (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

Perretta Christopher (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Perretta Christopher (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

Pelage Marlene (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Pelage Marlene (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

Nash Shannon (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Nash Shannon (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

HADZIMA JOSEPH G JR (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: HADZIMA JOSEPH G JR (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

Grasso Alfred (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Grasso Alfred (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

EGAN JOHN R (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: EGAN JOHN R (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-09-11

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

DONAHUE ROBERT E (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
`M`	Option exercise	7,000	—	—
`A`	Compensation award derivative · Restricted Stock Unit	7,000	—	—
`M`	Option exercise derivative · Restricted Stock Unit	7,000	—	—

Filing: Form 4 (Insider Transaction) Insider: DONAHUE ROBERT E (Director) Shares: 7,000

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-26

NTCT insider SZABADOS MICHAEL (Director) sold 4,000 shares (~$150.8K)

SZABADOS MICHAEL, listed as Director at NETSCOUT SYSTEMS INC, reported an open-market sale of 4,000 NTCT 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	4,000	$37.70	$150.8K

Filing: Form 4 (Insider Transaction) Insider: SZABADOS MICHAEL (Director) Shares: 4,000 Est. Value: $150.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Option exercise Tax / Compensation Filing 2026-08-26

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

Piazza Anthony John (EVP & Chief Financial Officer) 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	2,500	—	—
`F`	Tax withholding on vested shares	737	$37.81	$27.9K
`M`	Option exercise derivative · Restricted Stock Unit	2,500	—	—

Filing: Form 4 (Insider Transaction) Insider: Piazza Anthony John (EVP & Chief Financial Officer) Shares: 3,237

View on SEC EDGAR → Open Filing Document →

Form 4 Option exercise Tax / Compensation Filing 2026-08-26

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

Munshi Sanjay (Chief Operating Officer) 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	3,000	—	—
`F`	Tax withholding on vested shares	731	$37.81	$27.6K
`M`	Option exercise derivative · Restricted Stock Unit	3,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Munshi Sanjay (Chief Operating Officer) Shares: 3,731

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-19

NTCT insider Munshi Sanjay (Chief Operating Officer) sold 2,269 shares (~$89.1K)

Munshi Sanjay, listed as Chief Operating Officer at NETSCOUT SYSTEMS INC, reported an open-market sale of 2,269 NTCT 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	2,269	$39.27	$89.1K

Filing: Form 4 (Insider Transaction) Insider: Munshi Sanjay (Chief Operating Officer) Shares: 2,269 Est. Value: $89.1K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-13

NTCT insider DOWNING JOHN (EVP, Worldwide Sales Ops) sold 8,000 shares (~$307.3K)

DOWNING JOHN, listed as EVP, Worldwide Sales Ops at NETSCOUT SYSTEMS INC, reported an open-market sale of 8,000 NTCT 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	8,000	$38.41	$307.3K

Filing: Form 4 (Insider Transaction) Insider: DOWNING JOHN (EVP, Worldwide Sales Ops) Shares: 8,000 Est. Value: $307.3K

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 5 · 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. NetScout Systems, Inc. has 5 such notices 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 2026-09-11

NTCT Form 144 filed for proposed insider sale by Perretta Christopher (7,000 shares) ~$266.0K

Perretta Christopher filed a Form 144 with the SEC indicating intent to sell NTCT (NETSCOUT SYSTEMS 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: Perretta Christopher Shares: 7,000 Est. Value: $266.0K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-09-10

NTCT Form 144 filed for proposed insider sale by Michael Szabados (11,000 shares) ~$411.2K

Michael Szabados filed a Form 144 with the SEC indicating intent to sell NTCT (NETSCOUT SYSTEMS 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: Michael Szabados Shares: 11,000 Est. Value: $411.2K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-08-25

NTCT Form 144 filed for proposed insider sale by Michael Szabados (4,000 shares) ~$150.8K

Filing: Form 144 (Proposed Sale Notice) Insider: Michael Szabados Shares: 4,000 Est. Value: $150.8K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-08-17

NTCT Form 144 filed for proposed insider sale by Munshi Sanjay (2,269 shares) ~$89.1K

Munshi Sanjay filed a Form 144 with the SEC indicating intent to sell NTCT (NETSCOUT SYSTEMS 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: Munshi Sanjay Shares: 2,269 Est. Value: $89.1K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-08-11

NTCT Form 144 filed for proposed insider sale by DOWNING JOHN (8,000 shares) ~$307.3K

DOWNING JOHN filed a Form 144 with the SEC indicating intent to sell NTCT (NETSCOUT SYSTEMS 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: DOWNING JOHN Shares: 8,000 Est. Value: $307.3K

View on SEC EDGAR → Open Filing Document →

Material Events 1 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There is 1 in this period for NetScout Systems, 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 2026-09-11

NTCT filed 8-K — material company event

NETSCOUT SYSTEMS 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 →

How we classify NetScout Systems, 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 NTCT. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — NTCT SEC Filings

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NTCT 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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