SZABADOS MICHAEL

SEC source: 0001078075-26-000121 · form4.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,654

SEC source: 0001078075-26-000094 · form4.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,800

Underlying: Common Stock · 6,048 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Price is N/A.

F2 · price: Price is N/A.

F5 · derivative.exercise_date: The performance stock units shall vest in a range of 0% to 100% upon the determination of the Compensation Committee of the Board of the attainment of the required relative total shareholder return over the 36-month period commencing on June 15, 2023, and ending on June 14, 2026.

F6 · derivative.expiration_date: Date is N/A.

F7 · balance_after: On June 15, 2023, the Reporting Person was granted 16,800 performance stock units (the "Prior PSUs"), which shall vest in a range of 0% to 100% upon the determination of the Compensation Committee of the Board of the attainment of the required relative total shareholder return over the 36-month period commencing on June 15, 2023, and ending on June 14, 2026. On June 19, 2026, the Compensation Committee of the Board determined that 36% of the Prior PSUs shall vest.

F8 · balance_after: Reflects the number of performance stock units ("PSUs") held by the Reporting Person after the forfeiture of unachieved PSUs.

SEC source: 0001078075-26-000094 · form4.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,654

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of performance stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 18, 2026.

SEC source: 0001078075-26-000094 · form4.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,436

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain performance stock units previously granted to the reporting person.

F2 · price: Price is N/A.

SEC source: 0001232884-26-000002 · form4-06172026_040609.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,775

Underlying: Common Stock · 6,300 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Price is N/A.

F2 · price: Price is N/A.

F5 · derivative.exercise_date: June 15, 2026

F6 · derivative.expiration_date: Date is N/A.

SEC source: 0001232884-26-000002 · form4-06172026_040609.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,388

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 12, 2026.

SEC source: 0001232884-26-000002 · form4-06172026_040609.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,244

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: Price is N/A.

SEC source: 0001078075-26-000084 · form4.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,075

Underlying: Common Stock · 6,300 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Price is N/A.

F2 · price: Price is N/A.

F5 · derivative.exercise_date: June 6, 2026

F6 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000084 · form4.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,944

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 5, 2026.

SEC source: 0001078075-26-000084 · form4.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,794

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: Price is N/A.

SEC source: 0001078075-26-000056 · form4.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,494

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on May 23, 2025.

SEC source: 0001078075-26-000021 · form4.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,494

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on May 23, 2025.

SEC source: 0001232884-25-000007 · form4-11142025_041101.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,494

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on May 23, 2025.

SEC source: 0001232884-25-000005 · form4-10282025_041027.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,375

Underlying: Common Stock · 7,875 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.expiration_date: Date is N/A.

SEC source: 0001232884-25-000005 · form4-10282025_041027.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,494

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on October 24, 2025.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0001232884-25-000005 · form4-10282025_041027.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,814

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

SEC source: 0001415889-25-023012 · form4-08262025_040801.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,939

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on May 23, 2025.

SEC source: 0001415889-25-017558 · form4-06172025_050611.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,250

Underlying: Common Stock · 6,300 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.expiration_date: Date is N/A.

SEC source: 0001415889-25-017558 · form4-06172025_050611.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,939

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 13, 2025.

SEC source: 0001415889-25-017558 · form4-06172025_050611.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,795

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

SEC source: 0001415889-25-016519 · form4-06102025_050607.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,550

Underlying: Common Stock · 6,300 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.expiration_date: Date is N/A.

SEC source: 0001415889-25-016519 · form4-06102025_050607.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,495

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 5, 2025.

SEC source: 0001415889-25-016519 · form4-06102025_050607.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,351

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

SEC source: 0001415889-25-016114 · form4-06062025_090606.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,850

Underlying: Common Stock · 7,875 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.expiration_date: Date is N/A.

SEC source: 0001415889-25-016114 · form4-06062025_090606.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,051

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 3, 2025.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0001415889-25-016114 · form4-06062025_090606.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,364

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

SEC source: 0001415889-25-013158 · form4-05152025_040501.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,489

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on June 11, 2024.

F2 · price: 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 $22.5600 to $23.0300. 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 (2) to this Form 4.

SEC source: 0000950170-25-014560 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,989

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on June 11, 2024.

F2 · price: 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 $23.1800 to $23.9100. 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 (2) to this Form 4.

SEC source: 0000950170-24-119577 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 42,489

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on June 11, 2024.

F2 · price: 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 $21.0400 to $21.5000. 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 (2) to this Form 4.

SEC source: 0000950170-24-118289 · ownership.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,725

Underlying: Common Stock · 7,875 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.expiration_date: Date is N/A.

SEC source: 0000950170-24-118289 · ownership.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,989

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on October 25, 2024.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F5 · balance_after: Date is N/A.

SEC source: 0000950170-24-118289 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,309

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F5 · balance_after: Date is N/A.

SEC source: 0000950170-24-106430 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,434

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on June 11, 2024.

F2 · price: 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 $18.6397 to $19.1300. 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 (2) to this Form 4.

SEC source: 0000950170-24-075223 · ownership.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,600

Underlying: Common Stock · 6,300 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.expiration_date: Date is N/A.

SEC source: 0000950170-24-075223 · ownership.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,934

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 14, 2024.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0000950170-24-075223 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,790

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

SEC source: 0000950170-24-071571 · ownership.xml · derivative · entry 5

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,840

Underlying: Common Stock · 16,800 shares

Expires not disclosed

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F7 · derivative.exercise_date: The performance stock units shall vest in a range of 0% to 100% upon the determination of the Compensation Committee of the Board of the attainment of the required relative total shareholder return over the 36-month period commencing on June 6, 2024, and ending on June 5, 2027.

F6 · derivative.expiration_date: Date is N/A.

SEC source: 0000950170-24-071571 · ownership.xml · derivative · entry 4

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,900

Underlying: Common Stock · 25,200 shares

Expires not disclosed

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments with the first installment vesting on June 6, 2025.

F6 · derivative.expiration_date: Date is N/A.

SEC source: 0000950170-24-071571 · ownership.xml · derivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,040

Underlying: Common Stock · 11,760 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F8 · derivative.exercise_date: On June 3, 2021, the reporting person was granted 21,000 performance stock units (the "Prior PSUs"), which shall vest in a range of 0% to 100% upon the determination of the Compensation Committee of the Board of the attainment of the required relative total shareholder return over the 36-month period commencing on June 4, 2021, and ending on June 3, 2024. On June 6, 2024, the Compensation Committee of the Board determined that 56% of the Prior PSUs shall vest.

F8 · derivative.expiration_date: On June 3, 2021, the reporting person was granted 21,000 performance stock units (the "Prior PSUs"), which shall vest in a range of 0% to 100% upon the determination of the Compensation Committee of the Board of the attainment of the required relative total shareholder return over the 36-month period commencing on June 4, 2021, and ending on June 3, 2024. On June 6, 2024, the Compensation Committee of the Board determined that 56% of the Prior PSUs shall vest.

SEC source: 0000950170-24-071571 · ownership.xml · nonDerivative · entry 2

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,490

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F4 · price: Represents the closing price of the Company's Common Stock on June 5, 2024.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0000950170-24-071571 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,954

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain performance stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain performance stock units previously granted to the reporting person.

SEC source: 0000950170-24-069574 · ownership.xml · derivative · entry 9

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,700

Underlying: Common Stock · 7,875 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F9 · derivative.expiration_date: Date is N/A.

SEC source: 0000950170-24-069574 · ownership.xml · nonDerivative · entry 6

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,194

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F8 · price: Represents the closing price of the Company's Common Stock on June 3, 2024.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0000950170-24-069574 · ownership.xml · nonDerivative · entry 5

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,514

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

SEC source: 0000950170-24-069574 · ownership.xml · derivative · entry 8

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,575

Underlying: Common Stock · 8,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: The price is N/A.

F2 · price: The price is N/A.

F9 · derivative.expiration_date: Date is N/A.

SEC source: 0000950170-24-069574 · ownership.xml · nonDerivative · entry 4

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,639

F3 · kind: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

F7 · price: Represents the closing price of the Company's Common Stock on May 31, 2024.

F3 · acquired: The shares of Common Stock were withheld to satisfy the reporting person's tax withholding obligation upon the vesting of restricted stock units.

SEC source: 0000950170-24-069574 · ownership.xml · nonDerivative · entry 3

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,208

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F2 · price: The price is N/A.

F1 · acquired: The shares of Common Stock were acquired upon the vesting of certain restricted stock units previously granted to the reporting person.

F6 · balance_after: The number of shares reflects intervening sales of Common Stock as reported in the Forms 4 filed on December 11, 2023, January 31, 2024, and May 16, 2024.

SEC source: 0000950170-24-061162 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,084

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on September 7, 2023.

F2 · price: 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 $20.28 to $20.6481. 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 (2) to this Form 4.

SEC source: 0000950170-24-009396 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 26,084

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on September 7, 2023.

F2 · price: 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 $21.97 to $22.26. 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 (2) to this Form 4.

SEC source: 0000950170-23-069421 · ownership.xml · nonDerivative · entry 1

SZABADOS MICHAEL · CIK 0001232884 · Director · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,084

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on September 7, 2023.

F2 · price: 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 $20.97 to $21.13. 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 (2) to this Form 4.