RBBN

SEC source: 0001062993-22-015193 · form4.xml · derivative · entry 2

McCaffery Stephen J. · CIK 0001690129 · EVP, Sales EMEA and APAC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,016

Underlying: Common Stock · 45,016 shares

Expires not disclosed

F2 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015193 · form4.xml · derivative · entry 1

McCaffery Stephen J. · CIK 0001690129 · EVP, Sales EMEA and APAC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,524

Underlying: Common Stock · 67,524 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015187 · form4.xml · derivative · entry 3

Macken Patrick W · CIK 0001641965 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,463

Underlying: Common Stock · 96,463 shares

Expires not disclosed

F3 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F3 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F3 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

SEC source: 0001062993-22-015187 · form4.xml · derivative · entry 2

Macken Patrick W · CIK 0001641965 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,446

Underlying: Common Stock · 51,446 shares

Expires not disclosed

F2 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015187 · form4.xml · derivative · entry 1

Macken Patrick W · CIK 0001641965 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,170

Underlying: Common Stock · 77,170 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015189 · form4.xml · derivative · entry 1

McClelland Bruce William · CIK 0001424201 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 241,157

Underlying: Common Stock · 241,157 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F1 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F1 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

SEC source: 0001062993-22-015182 · form4.xml · derivative · entry 3

GRAYSON BRUNS H · CIK 0001204899 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,585

Underlying: Common Stock · 38,585 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications, Inc. common stock.

F3 · derivative.exercise_date: The RSUs will vest on June 15, 2023, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") occurs prior to June 15, 2023, and, at such 2023 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2023 Annual Meeting.

F3 · derivative.expiration_date: The RSUs will vest on June 15, 2023, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") occurs prior to June 15, 2023, and, at such 2023 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2023 Annual Meeting.

SEC source: 0001062993-22-015182 · form4.xml · derivative · entry 2

GRAYSON BRUNS H · CIK 0001204899 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,797 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.

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications, Inc. common stock.

F2 · derivative.exercise_date: The RSU was awarded on June 15, 2021 and vested in full on June 15, 2022.

F2 · derivative.expiration_date: The RSU was awarded on June 15, 2021 and vested in full on June 15, 2022.

SEC source: 0001062993-22-015182 · form4.xml · nonDerivative · entry 1

GRAYSON BRUNS H · CIK 0001204899 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 364,072

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 · price: Each RSU represents a contingent right to receive one share of Ribbon Communications, Inc. common stock.

SEC source: 0001062993-22-015181 · form4.xml · derivative · entry 3

INFANTE BEATRIZ V · CIK 0001193369 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,585

Underlying: Common Stock · 38,585 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications Inc. common stock.

F3 · derivative.exercise_date: The RSUs will vest on June 15, 2023, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") occurs prior to June 15, 2023, and, at such 2023 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2023 Annual Meeting.

F3 · derivative.expiration_date: The RSUs will vest on June 15, 2023, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") occurs prior to June 15, 2023, and, at such 2023 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2023 Annual Meeting.

SEC source: 0001062993-22-015181 · form4.xml · derivative · entry 2

INFANTE BEATRIZ V · CIK 0001193369 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,797 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.

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications Inc. common stock.

F2 · derivative.exercise_date: The RSU was awarded on June 15, 2021 and vested in full on June 15, 2022.

F2 · derivative.expiration_date: The RSU was awarded on June 15, 2021 and vested in full on June 15, 2022.

SEC source: 0001062993-22-015181 · form4.xml · nonDerivative · entry 1

INFANTE BEATRIZ V · CIK 0001193369 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 218,790

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 · price: Each RSU represents a contingent right to receive one share of Ribbon Communications Inc. common stock.

SEC source: 0001062993-22-015185 · form4.xml · derivative · entry 3

EWING R STEWART JR · CIK 0001202822 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,585

Underlying: Common Stock · 38,585 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications Inc. common stock.

F3 · derivative.exercise_date: The RSUs will vest on June 15, 2023, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") occurs prior to June 15, 2023, and, at such 2023 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2023 Annual Meeting.

F3 · derivative.expiration_date: The RSUs will vest on June 15, 2023, subject to the Reporting Person's continued service with the Issuer through such date; provided, however, that if the Issuer's 2023 Annual Meeting of Stockholders (the "2023 Annual Meeting") occurs prior to June 15, 2023, and, at such 2023 Annual Meeting, the Reporting Person either chooses not to stand for re-election to the Issuer's Board of Directors or, after standing for re-election, is not re-elected, then these RSUs will vest as of the date of the 2023 Annual Meeting.

SEC source: 0001062993-22-015185 · form4.xml · derivative · entry 2

EWING R STEWART JR · CIK 0001202822 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,797 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.

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications Inc. common stock.

F2 · derivative.exercise_date: The RSU was awarded on June 15, 2021 and vested in full on June 15,2022.

F2 · derivative.expiration_date: The RSU was awarded on June 15, 2021 and vested in full on June 15,2022.

SEC source: 0001062993-22-015185 · form4.xml · nonDerivative · entry 1

EWING R STEWART JR · CIK 0001202822 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,477

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 · price: Each RSU represents a contingent right to receive one share of Ribbon Communications Inc. common stock.

SEC source: 0001062993-22-015192 · form4.xml · derivative · entry 5

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 97,668

Underlying: Common Stock · 97,668 shares

Expires not disclosed

F5 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F5 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F5 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

SEC source: 0001062993-22-015192 · form4.xml · derivative · entry 4

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,016

Underlying: Common Stock · 45,016 shares

Expires not disclosed

F4 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F4 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F4 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015192 · form4.xml · derivative · entry 3

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,524

Underlying: Common Stock · 67,524 shares

Expires not disclosed

F3 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F3 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F3 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015190 · form4.xml · derivative · entry 3

LOPEZ MIGUEL A · CIK 0001600024 · EVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,607

Underlying: Common Stock · 126,607 shares

Expires not disclosed

F3 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F3 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F3 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

SEC source: 0001062993-22-015190 · form4.xml · derivative · entry 2

LOPEZ MIGUEL A · CIK 0001600024 · EVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,308

Underlying: Common Stock · 64,308 shares

Expires not disclosed

F2 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015190 · form4.xml · derivative · entry 1

LOPEZ MIGUEL A · CIK 0001600024 · EVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,463

Underlying: Common Stock · 96,463 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015194 · form4.xml · derivative · entry 5

Bruny Steven M · CIK 0001720723 · EVP Sales, Americas Region

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 97,668

Underlying: Common Stock · 97,668 shares

Expires not disclosed

F5 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F5 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F5 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

SEC source: 0001062993-22-015194 · form4.xml · derivative · entry 4

Bruny Steven M · CIK 0001720723 · EVP Sales, Americas Region

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,016

Underlying: Common Stock · 45,016 shares

Expires not disclosed

F4 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F4 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F4 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015194 · form4.xml · derivative · entry 3

Bruny Steven M · CIK 0001720723 · EVP Sales, Americas Region

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,524

Underlying: Common Stock · 67,524 shares

Expires not disclosed

F3 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F3 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F3 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015195 · form4.xml · derivative · entry 3

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,231

Underlying: Common Stock · 48,231 shares

Expires not disclosed

F3 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F4 · derivative.exercise_date: The RSUs vest in full on June 15, 2023.

F4 · derivative.expiration_date: The RSUs vest in full on June 15, 2023.

SEC source: 0001062993-22-015195 · form4.xml · derivative · entry 2

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,154

Underlying: Common Stock · 32,154 shares

Expires not disclosed

F2 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015195 · form4.xml · derivative · entry 1

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,231

Underlying: Common Stock · 48,231 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015191 · form4.xml · derivative · entry 3

Bucci Sam · CIK 0001824854 · EVP & GM IP Optical Networks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,117

Underlying: Common Stock · 110,117 shares

Expires not disclosed

F3 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F3 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

F3 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set (prior to grant) by the Compensation Committee for the fiscal year ending December 31, 2022. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2023.

SEC source: 0001062993-22-015191 · form4.xml · derivative · entry 2

Bucci Sam · CIK 0001824854 · EVP & GM IP Optical Networks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,308

Underlying: Common Stock · 64,308 shares

Expires not disclosed

F2 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F2 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies (set by the Compensation Committee at the time of grant) over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-015191 · form4.xml · derivative · entry 1

Bucci Sam · CIK 0001824854 · EVP & GM IP Optical Networks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,463

Underlying: Common Stock · 96,463 shares

Expires not disclosed

F1 · derivative.exercise_price: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.exercise_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

F1 · derivative.expiration_date: Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals (set by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") on an annual basis) for each of the three fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 03/15/2025.

SEC source: 0001062993-22-013614 · form4.xml · derivative · entry 2

PRABHU KRISH A · CIK 0001201412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,797 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.

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Ribbon Communications, Inc. common stock.

F2 · derivative.exercise_date: The RSU was awarded on June 15, 2021 and vested in full on May 25, 2022.

F2 · derivative.expiration_date: The RSU was awarded on June 15, 2021 and vested in full on May 25, 2022.

SEC source: 0001062993-22-013614 · form4.xml · nonDerivative · entry 1

PRABHU KRISH A · CIK 0001201412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,477

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 · price: Each RSU represents a contingent right to receive one share of Ribbon Communications, Inc. common stock.

SEC source: 0001062993-22-011549 · form4.xml · nonDerivative · entry 2

Bucci Sam · CIK 0001824854 · EVP & GM IP Optical Networks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,394

F1 · kind: Planned open market sale for income tax purposes.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.43 to $3.51, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price with the ranges set forth in this footnote.

SEC source: 0001062993-22-011549 · form4.xml · nonDerivative · entry 1

Bucci Sam · CIK 0001824854 · EVP & GM IP Optical Networks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 151,394

F1 · kind: Planned open market sale for income tax purposes.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.47 to $3.51, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price with the ranges set forth in this footnote.

SEC source: 0001062993-22-010533 · form4.xml · derivative · entry 1

McCaffery Stephen J. · CIK 0001690129 · EVP, Sales EMEA and APAC

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,179

Underlying: Common Stock · 112,179 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's common stock.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

SEC source: 0001062993-22-010545 · form4.xml · derivative · entry 1

Macken Patrick W · CIK 0001641965 · EVP, Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,205

Underlying: Common Stock · 128,205 shares

Expires not disclosed

F1 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

SEC source: 0001062993-22-010526 · form4.xml · nonDerivative · entry 1

GRAYSON BRUNS H · CIK 0001204899 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 349,275

F1 · date: Represents shares issued in lieu of receipt of cash fees for service on the Board of Directors and committees thereof.

F1 · kind: Represents shares issued in lieu of receipt of cash fees for service on the Board of Directors and committees thereof.

SEC source: 0001062993-22-010528 · form4.xml · derivative · entry 2

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,497

Underlying: Common Stock · 18,497 shares

Expires not disclosed

F1 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs vest in full on April 18, 2023.

F3 · derivative.expiration_date: The RSUs vest in full on April 18, 2023.

SEC source: 0001062993-22-010528 · form4.xml · derivative · entry 1

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,179

Underlying: Common Stock · 112,179 shares

Expires not disclosed

F1 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

SEC source: 0001062993-22-010541 · form4.xml · derivative · entry 1

LOPEZ MIGUEL A · CIK 0001600024 · EVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,256

Underlying: Common Stock · 160,256 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's common stock.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

SEC source: 0001062993-22-010543 · form4.xml · derivative · entry 1

Bucci Sam · CIK 0001824854 · EVP & GM IP Optical Networks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,256

Underlying: Common Stock · 160,256 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's common stock.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

SEC source: 0001062993-22-010537 · form4.xml · derivative · entry 1

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,128

Underlying: Common Stock · 80,128 shares

Expires not disclosed

F1 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's common stock.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 18, 2025.

SEC source: 0001062993-22-010531 · form4.xml · derivative · entry 1

Bruny Steven M · CIK 0001720723 · EVP Sales, Americas Region

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,153

Underlying: Common Stock · 96,153 shares

Expires not disclosed

F1 · derivative.exercise_price: RSUs convert into common stock on a one-for one basis.

F2 · derivative.exercise_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in two equal semi-annual installments thereafter through April 18, 2024.

F2 · derivative.expiration_date: The RSUs vest as to one-third on April 18, 2023, and the remaining two-thirds of the RSUs vest in two equal semi-annual installments thereafter through April 18, 2024.

SEC source: 0001062993-22-010387 · form4.xml · derivative · entry 3

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,056 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.

F1 · derivative.exercise_price: RSUs convert to Common Stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSU vested in full on April 15, 2022.

F3 · derivative.expiration_date: The RSU vested in full on April 15, 2022.

SEC source: 0001062993-22-010387 · form4.xml · nonDerivative · entry 2

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,304

F2 · price: Reflects shares of Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of the RSUs.

SEC source: 0001062993-22-010387 · form4.xml · nonDerivative · entry 1

Marmurek Eric S · CIK 0001720721 · SVP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,778

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 · price: RSUs convert to Common Stock on a one-for-one basis.

SEC source: 0001062993-22-008056 · form4.xml · derivative · entry 9

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,012

Underlying: Common Stock · 27,006 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.

F1 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs vested as to one-third on March 16, 2021, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through March 16, 2023.

F3 · derivative.expiration_date: The RSUs vested as to one-third on March 16, 2021, and the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through March 16, 2023.

SEC source: 0001062993-22-008056 · form4.xml · nonDerivative · entry 6

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 217,378

F2 · shares: Reflects shares of Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of the RSUs and/or PSUs.

F2 · price: Reflects shares of Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of the RSUs and/or PSUs.

SEC source: 0001062993-22-008056 · form4.xml · nonDerivative · entry 5

Scarfo Anthony · CIK 0001550524 · EVP & GM, Cloud & Edge BU

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 224,467

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 · price: RSUs convert into common stock on a one-for-one basis.

SEC source: 0001062993-22-008058 · form4.xml · derivative · entry 9

Bruny Steven M · CIK 0001720723 · EVP Sales, Americas Region

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,012

Underlying: Common Stock · 27,006 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.

F1 · derivative.exercise_price: RSUs convert into common stock on a one-for one basis.

F2 · derivative.exercise_date: The RSU originally vested as to one-third on March 16, 2021 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 16, 2023.

F2 · derivative.expiration_date: The RSU originally vested as to one-third on March 16, 2021 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 16, 2023.