NETSCOUT (NTCT) CFO updates holdings after RSU vesting and tax withholding

Rhea-AI Filing Summary

NETSCOUT SYSTEMS INC executive Anthony John Piazza reported routine equity compensation activity. On May 6, 2026, he acquired 4,500 shares of Common Stock upon vesting of restricted stock units and had 1,423 shares withheld to cover his tax withholding obligation. These transactions were not open-market trades. After the transactions, he directly held 24,648 shares of Common Stock.

Insider Trade Summary

4,500 shares exercised/converted

Mixed 3 txns

Insider Piazza Anthony John

Role EVP & Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	4,500	$0.00	--
Exercise	Common Stock	4,500	$0.00	--
Tax Withholding	Common Stock	1,423	$35.77	$51K

Holdings After Transaction: Restricted Stock Unit — 27,200 shares (Direct, null); Common Stock — 26,071 shares (Direct, null)

Footnotes (1)

1. The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person. The price is N/A. The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units. Represents the closing price of the Company's Common Stock on May 5, 2026. May 6, 2026 Date is N/A.

Key Figures

RSU vesting: 4,500 shares Tax withholding shares: 1,423 shares Closing price reference: $35.77 per share +1 more

4 metrics

RSU vesting 4,500 shares Common Stock acquired upon restricted stock unit vesting on May 6, 2026

Tax withholding shares 1,423 shares Shares withheld to satisfy tax withholding obligation on RSU vesting

Closing price reference $35.77 per share Closing price of Common Stock on May 5, 2026, referenced in footnote

Post-transaction holdings 24,648 shares Common Stock directly held by Anthony John Piazza after transactions

Key Terms

restricted stock units, tax withholding obligation, derivative security

3 terms

restricted stock units financial

"The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligation financial

"The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation"

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

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^*

Piazza Anthony John

(Last) (First) (Middle)

C/O NETSCOUT SYSTEMS, INC.

310 LITTLETON ROAD

(Street)

WESTFORD MASSACHUSETTS 01886

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
NETSCOUT SYSTEMS INC [ NTCT ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/06/2026

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
Common Stock	05/06/2026		M(1)		4,500	A	(2)	26,071	D
Common Stock	05/06/2026		F(3)		1,423	D	$35.77(4)	24,648	D

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
Restricted Stock Unit	(2)	05/06/2026		M			4,500	(5)	(6)	Common Stock	4,500	(2)	27,200	D

Explanation of Responses:

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

2. The price is N/A.

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

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

5. May 6, 2026

6. Date is N/A.

	/s/ Anthony Piazza	05/08/2026
	** 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 NETSCOUT (NTCT) CFO Anthony John Piazza report in this Form 4?

Anthony John Piazza reported routine equity compensation activity, not an open-market trade. Restricted stock units vested into 4,500 NETSCOUT shares, with a portion withheld to cover taxes, updating his direct ownership position in the company’s common stock.

How many NETSCOUT (NTCT) shares vested for the CFO in this filing?

4,500 NETSCOUT common shares vested for the CFO through previously granted restricted stock units. This reflects equity awards converting into stock, a common compensation practice, rather than a cash purchase of shares in the open market.

How many NETSCOUT (NTCT) shares were withheld for taxes in the Form 4?

1,423 NETSCOUT shares were withheld to satisfy Anthony John Piazza’s tax withholding obligation on the RSU vesting. This tax withholding disposition reduces the net shares he received but does not represent an open-market sale of stock.

What is Anthony John Piazza’s NETSCOUT (NTCT) shareholding after these transactions?

After the reported vesting and tax withholding, Anthony John Piazza directly holds 24,648 NETSCOUT common shares. This post-transaction balance reflects his updated equity stake following the conversion of restricted stock units and related tax share withholding.

Were any NETSCOUT (NTCT) shares bought or sold on the open market in this Form 4?

No open-market purchases or sales were reported. The filing shows RSU vesting and shares withheld for taxes, both internal equity compensation events, rather than discretionary buying or selling of NETSCOUT stock in the public market.

What price per share is referenced in the NETSCOUT (NTCT) Form 4 footnotes?

The Form 4 references a per-share value of $35.77, described as the closing price of NETSCOUT’s common stock on May 5, 2026. It serves as a pricing reference rather than an execution price for an open-market trade.