NTCT

SEC source: 0001078075-26-000143 · form4.xml · nonDerivative · entry 1

Perretta Christopher · CIK 0001570744 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,866

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on May 28, 2026.

SEC source: 0001078075-26-000141 · form4.xml · derivative · entry 3

VITALE VIVIAN M · CIK 0001206593 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000141 · form4.xml · nonDerivative · entry 1

VITALE VIVIAN M · CIK 0001206593 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,970

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: 0001078075-26-000140 · form4.xml · derivative · entry 3

Perretta Christopher · CIK 0001570744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000140 · form4.xml · nonDerivative · entry 1

Perretta Christopher · CIK 0001570744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,866

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: 0001078075-26-000139 · form4.xml · derivative · entry 3

Pelage Marlene · CIK 0001962874 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000139 · form4.xml · nonDerivative · entry 1

Pelage Marlene · CIK 0001962874 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,085

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: 0001078075-26-000138 · form4.xml · derivative · entry 3

Nash Shannon · CIK 0001888032 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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.

F6 · derivative.exercise_date: 09/10/2026

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

SEC source: 0001078075-26-000138 · form4.xml · nonDerivative · entry 1

Nash Shannon · CIK 0001888032 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 25,085

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.

F3 · ownership.nature: The shares are held by trust for which Ms. Nash and her spouse serve as co-trustees.

SEC source: 0001078075-26-000137 · form4.xml · derivative · entry 3

HADZIMA JOSEPH G JR · CIK 0001232881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000137 · form4.xml · nonDerivative · entry 1

HADZIMA JOSEPH G JR · CIK 0001232881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,185

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: 0001078075-26-000136 · form4.xml · derivative · entry 3

Grasso Alfred · CIK 0001738443 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000136 · form4.xml · nonDerivative · entry 1

Grasso Alfred · CIK 0001738443 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,000

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: 0001078075-26-000135 · form4.xml · derivative · entry 3

EGAN JOHN R · CIK 0001189174 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000135 · form4.xml · nonDerivative · entry 1

EGAN JOHN R · CIK 0001189174 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,740

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: 0001078075-26-000134 · form4.xml · derivative · entry 3

DONAHUE ROBERT E · CIK 0001276013 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000

Underlying: Common Stock · 7,000 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: 09/10/2026

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000134 · form4.xml · nonDerivative · entry 1

DONAHUE ROBERT E · CIK 0001276013 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,977

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: 0001078075-26-000141 · form4.xml · derivative · entry 2

VITALE VIVIAN M · CIK 0001206593 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000140 · form4.xml · derivative · entry 2

Perretta Christopher · CIK 0001570744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000139 · form4.xml · derivative · entry 2

Pelage Marlene · CIK 0001962874 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000138 · form4.xml · derivative · entry 2

Nash Shannon · CIK 0001888032 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F4 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

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

SEC source: 0001078075-26-000137 · form4.xml · derivative · entry 2

HADZIMA JOSEPH G JR · CIK 0001232881 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000136 · form4.xml · derivative · entry 2

Grasso Alfred · CIK 0001738443 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000135 · form4.xml · derivative · entry 2

EGAN JOHN R · CIK 0001189174 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

SEC source: 0001078075-26-000134 · form4.xml · derivative · entry 2

DONAHUE ROBERT E · CIK 0001276013 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 7,000 shares

Expires not disclosed

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

F3 · derivative.exercise_date: All of the Restricted Stock Units vest on the first anniversary of the date of grant, provided that the reporting person attends at least 75% of the meetings, collectively, of the Board and any committee of the Board of which the reporting person is a member which are held during the corporation's 2027 fiscal year; provided that, in the event that the attendance requirements are not met, the Restricted Stock Units will not become vested until 09/09/2029; subject, in each case, to the reporting person's continuous service with the corporation through the applicable vesting date.

F4 · derivative.expiration_date: Date is N/A.

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: 0001078075-26-000120 · form4.xml · derivative · entry 3

Piazza Anthony John · CIK 0002068041 · EVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,300

Underlying: Common Stock · 2,500 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: August 25, 2026

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

SEC source: 0001078075-26-000120 · form4.xml · nonDerivative · entry 2

Piazza Anthony John · CIK 0002068041 · EVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,517

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 August 24, 2026.

SEC source: 0001078075-26-000120 · form4.xml · nonDerivative · entry 1

Piazza Anthony John · CIK 0002068041 · EVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,254

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: 0001078075-26-000119 · form4.xml · derivative · entry 3

Munshi Sanjay · CIK 0002068013 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,410

Underlying: Common Stock · 3,000 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: August 25, 2026

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

SEC source: 0001078075-26-000119 · form4.xml · nonDerivative · entry 2

Munshi Sanjay · CIK 0002068013 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,998

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 August 24, 2026.

SEC source: 0001078075-26-000119 · form4.xml · nonDerivative · entry 1

Munshi Sanjay · CIK 0002068013 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,729

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: 0001078075-26-000115 · form4.xml · nonDerivative · entry 1

Munshi Sanjay · CIK 0002068013 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,729

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on September 3, 2025.

SEC source: 0001078075-26-000112 · form4.xml · nonDerivative · entry 1

DOWNING JOHN · CIK 0001232878 · EVP, Worldwide Sales Ops

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 127,809

F1 · kind: The shares of Common Stock were sold pursuant to a 10b5-1 plan adopted by the Reporting Person on November 11, 2025.

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 $37.99 to $38.91. 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.

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: 0001078075-26-000092 · form4.xml · derivative · entry 4

SINGHAL ANIL K · CIK 0001040585 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,400

Underlying: Common Stock · 10,368 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.

F6 · 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.

F7 · derivative.expiration_date: Date is N/A.

F8 · balance_after: On June 15, 2023, the Reporting Person was granted 28,800 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.

F9 · balance_after: Reflects the number of performance stock units ("PSUs") held by the Reporting Person after the forfeiture of unachieved PSUs.

SEC source: 0001078075-26-000092 · form4.xml · nonDerivative · entry 2

SINGHAL ANIL K · CIK 0001040585 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 455,034

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: 0001078075-26-000092 · form4.xml · nonDerivative · entry 1

SINGHAL ANIL K · CIK 0001040585 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 459,643

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: 0001078075-26-000090 · form4.xml · derivative · entry 3

DOWNING JOHN · CIK 0001232878 · EVP, World-Wide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,200

Underlying: Common Stock · 5,184 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 14,400 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: 0001078075-26-000090 · form4.xml · nonDerivative · entry 2

DOWNING JOHN · CIK 0001232878 · EVP, World-Wide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,809

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: 0001078075-26-000090 · form4.xml · nonDerivative · entry 1

DOWNING JOHN · CIK 0001232878 · EVP, World-Wide Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,114

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: 0001078075-26-000097 · form4.xml · derivative · entry 1

Watt Eric Todd · CIK 0002069294 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,250

Underlying: Common Stock · 10,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Price is N/A.

F1 · price: Price is N/A.

F2 · derivative.exercise_date: The restricted stock units vest in four equal annual installments with the first installment vesting on June 19, 2027.

F3 · derivative.expiration_date: Date 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: 0001040585-26-000002 · form4-06172026_040607.xml · derivative · entry 4

SINGHAL ANIL K · CIK 0001040585 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,500

Underlying: Common Stock · 10,800 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.

F6 · derivative.exercise_date: June 15, 2026

F7 · derivative.expiration_date: Date is N/A.

SEC source: 0001040585-26-000002 · form4-06172026_040607.xml · nonDerivative · entry 2

SINGHAL ANIL K · CIK 0001040585 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 449,275

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: 0001040585-26-000002 · form4-06172026_040607.xml · nonDerivative · entry 1

SINGHAL ANIL K · CIK 0001040585 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 453,470

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.