John Downing - 06 Jun 2026 Form 4 Insider Report for NETSCOUT SYSTEMS INC (NTCT)

Reporting relationship: EVP, World-Wide Sales
Issuer ticker: NTCT
Reported as of: 06 Jun 2026
Net transaction value: -$322,320
SEC form: 4
Accepted by SEC: 09 Jun 2026, 16:26:24 UTC
Prior SEC filing: 29 May 2026
Next SEC filing: 17 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeff Levinson by Power of Attorney

Key filing fact

John Downing filed Form 4 for NETSCOUT SYSTEMS INC (NTCT) on 09 Jun 2026.

Key facts

This page summarizes John Downing's Form 4 filing for NETSCOUT SYSTEMS INC (NTCT).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 09 Jun 2026, 16:26.

Change

Previous filing in this sequence was filed on 29 May 2026.
Current net transaction value: -$322,320.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001232878 Primary reporting owner

DOWNING JOHN

Relationship: EVP, World-Wide Sales
Address: C/O NETSCOUT SYSTEMS, INC., 310 LITTLETON ROAD, WESTFORD
Signature: /s/ Jeff Levinson by Power of Attorney
Signature date: 09 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NTCT transaction

Common Stock

Options Exercise

Transaction value
Shares: +5,400
Change %: +4.1%
Price
Shares after: 138,706
Date: 06 Jun 2026
Ownership: Direct
Footnotes: F1, F2

NTCT transaction

Common Stock

Tax liability

Transaction value
Shares: -1,585
Change %: -1.1%
Price: $40.59^*
Shares after: 137,121
Date: 06 Jun 2026
Ownership: Direct
Footnotes: F3, F4

NTCT transaction

Common Stock

Sale

Transaction value: $322,320
Shares: -8,000
Change %: -5.8%
Price: $40.29
Shares after: 129,121
Date: 08 Jun 2026
Ownership: Direct
Footnotes: F5, F6

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NTCT transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -5,400
Change %: -7.5%
Price
Shares after: 66,150
Date: 06 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,400
Exercise price
Footnotes: F2, F7, F8

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 8 footnotes

Footnote F1

The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

Footnote F2

Price is N/A.

Footnote F3

The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

Footnote F4

Represents the closing price of the Company's Common Stock on June 5, 2026.

Footnote F5

The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on November 11, 2025.

Footnote F6

The shares sold on this date were sold in multiple transactions. This price is the weighted average sales price per share; the actual sales price per share ranged from $40.01 to $40.36. The reporting person undertakes to provide to NetScout Systems, Inc., any security holder of NetScout Systems, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F7

June 6, 2026

Footnote F8

Date is N/A.