Redington Dan

SEC source: 0001062993-25-015408 · form4.xml · nonDerivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

SEC source: 0001062993-25-015408 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,176

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.965 to $4.160, inclusive. The reporting person undertakes to provide to Ribbon Communications, any security holder of Ribbon Communications, 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: 0001062993-25-015408 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,610

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.16 to $4.165, inclusive. The reporting person undertakes to provide to Ribbon Communications, any security holder of Ribbon Communications, 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: 0001062993-25-011842 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,833

Underlying: Common Stock · 20,833 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: The RSUs convert to common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds vest in four equal semi-annual installments thereafter through December 15, 2025.

F3 · derivative.expiration_date: The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds vest in four equal semi-annual installments thereafter through December 15, 2025.

SEC source: 0001062993-25-011842 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,610

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: 0001062993-25-011842 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,807

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: The RSUs convert to common stock on a one-for-one basis.

SEC source: 0001062993-25-009789 · form4.xml · derivative · entry 8

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 42,194 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.

F8 · derivative.exercise_price: The RSUs were granted on May 15, 2024 and vested in full on May 16, 2025.

F8 · derivative.exercise_date: The RSUs were granted on May 15, 2024 and vested in full on May 16, 2025.

F8 · derivative.expiration_date: The RSUs were granted on May 15, 2024 and vested in full on May 16, 2025.

SEC source: 0001062993-25-009789 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 176,974

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

SEC source: 0001062993-25-009789 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,577

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

SEC source: 0001062993-25-009789 · form4.xml · derivative · entry 7

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,523

Underlying: Common Stock · 48,523 shares

Expires not disclosed

F7 · 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 on an annual basis) for the fiscal year ending December 31, 2026. The aggregate number of shares issued may range from zero shares to 150% 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 May 15, 2027.

F7 · 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 on an annual basis) for the fiscal year ending December 31, 2026. The aggregate number of shares issued may range from zero shares to 150% 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 May 15, 2027.

F7 · 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 on an annual basis) for the fiscal year ending December 31, 2026. The aggregate number of shares issued may range from zero shares to 150% 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 May 15, 2027.

SEC source: 0001062993-25-009789 · form4.xml · derivative · entry 6

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,000

Underlying: Common Stock · 45,000 shares

Expires not disclosed

F6 · 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 May 15, 2028.

F6 · 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 May 15, 2028.

F6 · 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 May 15, 2028.

SEC source: 0001062993-25-009789 · form4.xml · derivative · entry 5

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,500

Underlying: Common Stock · 67,500 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 goals (set by 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 150% 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 May 15, 2028.

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 goals (set by 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 150% 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 May 15, 2028.

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 goals (set by 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 150% 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 May 15, 2028.

SEC source: 0001062993-25-009789 · form4.xml · derivative · entry 4

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,388

Underlying: Common Stock · 84,388 shares

Expires not disclosed

F4 · derivative.exercise_price: The RSUs vest as to one-half on May 15, 2026; the remaining one-half of the RSUs will vest in two equal semi-annual installments thereafter through May 15, 2027.

F4 · derivative.exercise_date: The RSUs vest as to one-half on May 15, 2026; the remaining one-half of the RSUs will vest in two equal semi-annual installments thereafter through May 15, 2027.

F4 · derivative.expiration_date: The RSUs vest as to one-half on May 15, 2026; the remaining one-half of the RSUs will vest in two equal semi-annual installments thereafter through May 15, 2027.

SEC source: 0001062993-25-009789 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,500

Underlying: Common Stock · 78,125 shares

Expires not disclosed

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

F3 · derivative.exercise_date: The RSUs vest as to one-third on May 15, 2026; the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through May 15, 2028.

F3 · derivative.expiration_date: The RSUs vest as to one-third on May 15, 2026; the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through May 15, 2028.

SEC source: 0001062993-25-007790 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,141

Underlying: Common Stock · 18,071 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 Restricted Stock Unit (RSU) converts into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on April 17, 2023 and originally vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 17, 2026.

F3 · derivative.expiration_date: The RSUs were granted on April 17, 2023 and originally vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 17, 2026.

SEC source: 0001062993-25-007790 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,383

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

SEC source: 0001062993-25-007790 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,493

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 Restricted Stock Unit (RSU) converts into common stock on a one-for-one basis.

SEC source: 0001062993-24-020675 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,666

Underlying: Common Stock · 20,833 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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on December 15, 2022 and vested as to one-third on December 15, 2023; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through December 15, 2025.

F3 · derivative.expiration_date: The RSUs were granted on December 15, 2022 and vested as to one-third on December 15, 2023; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through December 15, 2025.

SEC source: 0001062993-24-020675 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,303

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

SEC source: 0001062993-24-020675 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,500

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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

SEC source: 0001062993-24-017821 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,212

Underlying: Common Stock · 18,071 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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on April 17, 2023 and vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 17, 2026.

F3 · derivative.expiration_date: The RSUs were granted on April 17, 2023 and vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs vest in four equal semi-annual installments thereafter through April 17, 2026.

SEC source: 0001062993-24-017821 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,667

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

SEC source: 0001062993-24-017821 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,777

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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

SEC source: 0001062993-24-012758 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,499

Underlying: Common Stock · 20,833 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: The RSUs convert to common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds vest in four equal semi-annual installments thereafter through December 15, 2025.

F3 · derivative.expiration_date: The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds vest in four equal semi-annual installments thereafter through December 15, 2025.

SEC source: 0001062993-24-012758 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,706

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: 0001062993-24-012758 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,487

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: The RSUs convert to common stock on a one-for-one basis.

SEC source: 0001062993-24-010676 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,818

Underlying: Common Stock · 38,818 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 05/15/2027.

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 05/15/2027.

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 05/15/2027.

SEC source: 0001062993-24-010676 · form4.xml · derivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,228

Underlying: Common Stock · 58,228 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 on an annual basis) for each of the two fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 150% 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 05/15/2026.

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 on an annual basis) for each of the two fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 150% 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 05/15/2026.

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 on an annual basis) for each of the two fiscal years prior to the vesting date. The aggregate number of shares issued may range from zero shares to 150% 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 05/15/2026.

SEC source: 0001062993-24-010676 · form4.xml · derivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,194

Underlying: Common Stock · 42,194 shares

Expires not disclosed

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

F2 · derivative.exercise_date: The RSUs vest in full on May 16, 2025.

F2 · derivative.expiration_date: The RSUs vest in full on May 16, 2025.

SEC source: 0001062993-24-008601 · form4.xml · derivative · entry 5

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 24,465 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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

F4 · derivative.exercise_date: The PSUs were issued on April 17, 2023. The number of PSUs earned and vested was 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 ended December 31, 2023. The remaining PSUs were forfeited.

F4 · derivative.expiration_date: The PSUs were issued on April 17, 2023. The number of PSUs earned and vested was 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 ended December 31, 2023. The remaining PSUs were forfeited.

SEC source: 0001062993-24-008601 · form4.xml · derivative · entry 4

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,283

Underlying: Common Stock · 36,143 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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on April 17, 2023 and vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through April 17, 2026.

F3 · derivative.expiration_date: The RSUs were granted on April 17, 2023 and vested as to one-third on April 17, 2024; the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through April 17, 2026.

SEC source: 0001062993-24-008601 · form4.xml · nonDerivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,654

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

SEC source: 0001062993-24-008601 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,447

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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

SEC source: 0001062993-24-008601 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,982

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 Restricted Stock Unit (RSU) and Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

SEC source: 0001062993-25-005793 · form4a.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,743 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 Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

F4 · derivative.exercise_date: The PSUs were issued on April 17, 2023. The number of PSUs earned and vested was 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 ended December 31, 2023. The remaining PSUs were forfeited.

F4 · derivative.expiration_date: The PSUs were issued on April 17, 2023. The number of PSUs earned and vested was 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 ended December 31, 2023. The remaining PSUs were forfeited.

SEC source: 0001062993-25-005793 · form4a.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,158

F2 · shares: Original Form 4 filing overstated the number of shares issued upon vesting of this PSU award by 1,881 shares. This amendment has been filed to correct the vesting amount and the amount shown in Column 5 reflects total shares owned after correcting this transaction.

F3 · price: Reflects shares of Common Stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting.

F2 · balance_after: Original Form 4 filing overstated the number of shares issued upon vesting of this PSU award by 1,881 shares. This amendment has been filed to correct the vesting amount and the amount shown in Column 5 reflects total shares owned after correcting this transaction.

SEC source: 0001062993-25-005793 · form4a.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,566

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 · shares: Original Form 4 filing overstated the number of shares issued upon vesting of this PSU award by 1,881 shares. This amendment has been filed to correct the vesting amount and the amount shown in Column 5 reflects total shares owned after correcting this transaction.

F1 · price: Each Performance Share Unit (PSU) converts into common stock on a one-for-one basis.

F2 · balance_after: Original Form 4 filing overstated the number of shares issued upon vesting of this PSU award by 1,881 shares. This amendment has been filed to correct the vesting amount and the amount shown in Column 5 reflects total shares owned after correcting this transaction.

SEC source: 0001062993-24-004777 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,839

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.09 to $3.12, inclusive. The reporting person undertakes to provide to Ribbon Communications, any security holder of Ribbon Communications, 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: 0001062993-24-004325 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,291

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.09 to $3.14, inclusive. The reporting person undertakes to provide to Ribbon Communications, any security holder of Ribbon Communications, 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: 0001062993-24-004325 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,255

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.20 to $3.21, inclusive. The reporting person undertakes to provide to Ribbon Communications, any security holder of Ribbon Communications, 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: 0001062993-23-022760 · form4.xml · derivative · entry 5

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,332

Underlying: Common Stock · 41,668 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: The RSUs convert to common stock on a one-for-one basis.

F4 · derivative.exercise_date: The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds will vest in four equal semi-annual installments thereafter through December 15, 2025.

F4 · derivative.expiration_date: The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds will vest in four equal semi-annual installments thereafter through December 15, 2025.

SEC source: 0001062993-23-022760 · form4.xml · derivative · entry 4

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 133,928 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: The RSUs convert to common stock on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs vested in full on the first anniversary of the date of grant.

F3 · derivative.expiration_date: The RSUs vested in full on the first anniversary of the date of grant.

SEC source: 0001062993-23-022760 · form4.xml · nonDerivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,839

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: 0001062993-23-022760 · form4.xml · nonDerivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,596

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: The RSUs convert to common stock on a one-for-one basis.

SEC source: 0001062993-23-022760 · form4.xml · nonDerivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,928

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: The RSUs convert to common stock on a one-for-one basis.

SEC source: 0001062993-23-009364 · form4.xml · derivative · entry 4

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,371

Underlying: Common Stock · 43,371 shares

Expires not disclosed

F5 · 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 04/17/2026.

F5 · 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 04/17/2026.

F5 · 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 04/17/2026.

SEC source: 0001062993-23-009364 · form4.xml · derivative · entry 3

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,055

Underlying: Common Stock · 65,055 shares

Expires not disclosed

F4 · 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 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 04/17/2026.

F4 · 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 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 04/17/2026.

F4 · 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 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 04/17/2026.

SEC source: 0001062993-23-009364 · form4.xml · derivative · entry 2

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,049

Underlying: Common Stock · 47,049 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 of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2023. 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 04/17/2024.

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 of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2023. 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 04/17/2024.

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 of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2023. 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 04/17/2024.

SEC source: 0001062993-23-009364 · form4.xml · derivative · entry 1

Redington Dan · CIK 0001967463 · EVP, Global Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,426

Underlying: Common Stock · 108,426 shares

Expires not disclosed

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

F2 · derivative.exercise_date: The RSUs will vest as to one-third on the first anniversary of the date of grant, and the remaining two-thirds will vest in four equal semi-annual installments thereafter through April 17, 2026.

F2 · derivative.expiration_date: The RSUs will vest as to one-third on the first anniversary of the date of grant, and the remaining two-thirds will vest in four equal semi-annual installments thereafter through April 17, 2026.