RBBN

SEC source: 0001708055-21-000055 · edgar.xml · derivative · entry 3

LOPEZ MIGUEL A · CIK 0001600024 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,259

Underlying: Common Stock · 32,259 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 3/15/2024.

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 3/15/2024.

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 3/15/2024.

SEC source: 0001708055-21-000055 · edgar.xml · derivative · entry 2

LOPEZ MIGUEL A · CIK 0001600024 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,764

Underlying: Common Stock · 53,764 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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 3/15/2024.

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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

SEC source: 0001708055-21-000055 · edgar.xml · derivative · entry 1

LOPEZ MIGUEL A · CIK 0001600024 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,764

Underlying: Common Stock · 53,764 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 will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

F2 · derivative.expiration_date: The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

SEC source: 0001708055-21-000057 · edgar.xml · derivative · entry 5

Marmurek Eric S · CIK 0001720721 · SVP, CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,880

Underlying: Common Stock · 9,880 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 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 3/15/2024.

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 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 3/15/2024.

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 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 3/15/2024.

SEC source: 0001708055-21-000057 · edgar.xml · derivative · entry 4

Marmurek Eric S · CIK 0001720721 · SVP, CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,820

Underlying: Common Stock · 14,820 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 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 3/15/2024.

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 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 3/15/2024.

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 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 3/15/2024.

SEC source: 0001708055-21-000057 · edgar.xml · derivative · entry 3

Marmurek Eric S · CIK 0001720721 · SVP, CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,700

Underlying: Common Stock · 24,700 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's common stock.

F4 · derivative.exercise_date: The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

F4 · derivative.expiration_date: The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

SEC source: 0001708055-21-000056 · edgar.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,116

Underlying: Common Stock · 19,116 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 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 3/15/2024,

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 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 3/15/2024,

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 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 3/15/2024,

SEC source: 0001708055-21-000056 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,674

Underlying: Common Stock · 28,674 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 3/15/2024.

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 3/15/2024.

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 3/15/2024.

SEC source: 0001708055-21-000056 · edgar.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,790

Underlying: Common Stock · 47,790 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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

SEC source: 0001708055-21-000056 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,790

Underlying: Common Stock · 47,790 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 will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

F2 · derivative.expiration_date: The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

SEC source: 0001708055-21-000054 · edgar.xml · derivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,727

Underlying: Common Stock · 16,727 shares

Expires not disclosed

F7 · 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 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 3/15/2024.

F7 · 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 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 3/15/2024.

F7 · 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 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 3/15/2024.

SEC source: 0001708055-21-000054 · edgar.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,090

Underlying: Common Stock · 25,090 shares

Expires not disclosed

F6 · 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 3/15/2024.

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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

F7 · 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 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 3/15/2024.

SEC source: 0001708055-21-000054 · edgar.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,817

Underlying: Common Stock · 41,817 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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee") for the fiscal year ending December 31, 2021. 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 3/15/2022.

SEC source: 0001708055-21-000054 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,817

Underlying: Common Stock · 41,817 shares

Expires not disclosed

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

F4 · derivative.exercise_date: The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

F4 · derivative.expiration_date: The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.

SEC source: 0001708055-21-000078 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,939

Underlying: Common Stock · 13,939 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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · derivative.underlying_shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

F2 · balance_after: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

SEC source: 0001708055-21-000076 · edgar.xml · derivative · entry 1

Macken Patrick W · CIK 0001641965 · EVP & CLO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,930

Underlying: Common Stock · 15,930 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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · derivative.underlying_shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

F2 · balance_after: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

SEC source: 0001708055-21-000075 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,939

Underlying: Common Stock · 13,939 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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · derivative.underlying_shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

F2 · balance_after: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

SEC source: 0001708055-21-000077 · edgar.xml · derivative · entry 1

LOPEZ MIGUEL A · CIK 0001600024 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,922

Underlying: Common Stock · 17,922 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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · derivative.underlying_shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

F2 · balance_after: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

SEC source: 0001708055-21-000079 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,930

Underlying: Common Stock · 15,930 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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · derivative.underlying_shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

F2 · balance_after: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

SEC source: 0001708055-21-000074 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,939

Underlying: Common Stock · 13,939 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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

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 by the Compensation Committee of the Issuer's Board of Directors for the fiscal year ending December 31, 2021. 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 3/15/2022.

F2 · derivative.underlying_shares: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

F2 · balance_after: On March 17, 2021, the reporting person filed a Form 4 that, due to a mathematical error, inadvertently reported an inaccurate number of target shares in columns 5, 7 and 9.

SEC source: 0001708055-21-000042 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,947

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.59 to $8.61, 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: 0001708055-21-000043 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,416,667

Underlying: Common Stock · 1,333,333 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 PSU represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: On March 16, 2020, the reporting person was awarded 4,750,000 PSUs, the first 1,333,333 of which vested in full on the date the Issuer's stock price achieved a daily closing price on the NASDAQ Stock Market of $7.50 for 20 (twenty) consecutive trading days on or before September 1, 2021.

F3 · derivative.expiration_date: On March 16, 2020, the reporting person was awarded 4,750,000 PSUs, the first 1,333,333 of which vested in full on the date the Issuer's stock price achieved a daily closing price on the NASDAQ Stock Market of $7.50 for 20 (twenty) consecutive trading days on or before September 1, 2021.

SEC source: 0001708055-21-000043 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 872,796

F2 · shares: Reflects shares of common stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

SEC source: 0001708055-21-000043 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,458,908

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 PSU represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0001708055-21-000042 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,947

SEC source: 0001708055-21-000039 · edgar.xml · derivative · entry 1

Macken Patrick W · CIK 0001641965 · EVP & CLO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,884

Underlying: Common Stock · 22,884 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F2 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Macken earned 22,884 shares, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F2 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Macken earned 22,884 shares, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000038 · edgar.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,023

Underlying: Common Stock · 20,023 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F3 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Scarfo earned 20,023 shares for the 2020 performance year portion of awards made in 2020, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F3 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Scarfo earned 20,023 shares for the 2020 performance year portion of awards made in 2020, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000038 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,341

Underlying: Common Stock · 17,960 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F2 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Scarfo earned 17,960 shares for the 2020 performance year portion of awards made in 2019, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F2 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Scarfo earned 17,960 shares for the 2020 performance year portion of awards made in 2019, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000041 · edgar.xml · derivative · entry 1

LOPEZ MIGUEL A · CIK 0001600024 · EVP and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,890

Underlying: Common Stock · 24,890 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F2 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Loepz earned 24,890 shares, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F2 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Loepz earned 24,890 shares, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000042 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,059

Underlying: Common Stock · 25,059 shares

Expires not disclosed

F2 · 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F3 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Bucci earned 25,059 shares, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F3 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Bucci earned 25,059 shares, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000037 · edgar.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,023

Underlying: Common Stock · 20,023 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F3 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Bruny earned 20,023 shares for the 2020 performance year portion of awards made in 2020, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F3 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Bruny earned 20,023 shares for the 2020 performance year portion of awards made in 2020, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000037 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,341

Underlying: Common Stock · 17,960 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F2 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Bruny earned 17,960 shares for the 2020 performance year portion of awards made in 2019, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F2 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Bruny earned 17,960 shares for the 2020 performance year portion of awards made in 2019, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000040 · edgar.xml · derivative · entry 2

Marmurek Eric S · CIK 0001720721 · SVP, CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,442

Underlying: Common Stock · 11,442 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F3 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Marmurek earned 11,442 shares for the 2020 performance year portion of awards made in 2020, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F3 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Marmurek earned 11,442 shares for the 2020 performance year portion of awards made in 2020, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000040 · edgar.xml · derivative · entry 1

Marmurek Eric S · CIK 0001720721 · SVP, CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,301

Underlying: Common Stock · 9,085 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 (the "Compensation Committee") of the Issuer's Board of Directors on an annual basis for each of the three fiscal years prior to the vesting date.

F2 · derivative.exercise_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Marmurek earned 9,085 shares for the 2020 performance year portion of awards made in 2019, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

F2 · derivative.expiration_date: The Compensation Committee determined that the 2020 pre-bonus adjusted EBITDA (50% weighting) and Revenue (50% weighting) metrics resulted in a combined 125% level of the target awards being earned for the 2020 financial performance period, subject to no material changes in connection with the finalization of the audit and the filing of the Issuer's Annual Report on Form 10-K for the year ended December 31, 2020 (the "2020 Form 10-K"). The 2020 Form 10-K was filed with the U.S. Securities and Exchange Commission on February 26, 2021. As a result, Mr. Marmurek earned 9,085 shares for the 2020 performance year portion of awards made in 2019, pending his continued employment with the Issuer through the vesting date (third anniversary of the date of grant).

SEC source: 0001708055-21-000010 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,425

F1 · shares: Reflects shares of common stock withheld by the Issuer to satisfy tax withholding obligations in connection with vesting of restricted stock.

SEC source: 0001708055-21-000007 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 133,333 shares

Expires 2022-01-31

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 PSU represents a contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: On September 15, 2020, the reporting person was awarded 133,333 PSUs, vesting in full on the date the Issuer's stock price achieved a daily closing price on the NASDAQ Stock Market of $7.50 for 10 (ten) consecutive trading days on or before January 31, 2022.

F3 · derivative.expiration_date: On September 15, 2020, the reporting person was awarded 133,333 PSUs, vesting in full on the date the Issuer's stock price achieved a daily closing price on the NASDAQ Stock Market of $7.50 for 10 (ten) consecutive trading days on or before January 31, 2022.

SEC source: 0001708055-21-000007 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,447

F2 · shares: Reflects shares of common stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

SEC source: 0001708055-21-000007 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133.333

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 PSU represents a contingent right to receive one share of the Issuer's common stock.

SEC source: 0001708055-21-000004 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,638

Underlying: Common Stock · 73,638 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 will vest in full on January 15, 2022.

F2 · derivative.expiration_date: The RSUs will vest in full on January 15, 2022.

SEC source: 0001708055-20-000205 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,584

Underlying: Common Stock · 13,528 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 into common stock on a one-for-one basis.

F3 · derivative.exercise_date: 81,169 RSUs were granted on June 17, 2019 and vest over a three-year period as follows: one-third of the RSUs vested on June 17, 2020, one-sixth of the RSUs vested on December 17, 2020, and the remaining RSUs will vest as to one-sixth on each of June 17, 2021, December 17, 2021 and June 17, 2022.

F3 · derivative.expiration_date: 81,169 RSUs were granted on June 17, 2019 and vest over a three-year period as follows: one-third of the RSUs vested on June 17, 2020, one-sixth of the RSUs vested on December 17, 2020, and the remaining RSUs will vest as to one-sixth on each of June 17, 2021, December 17, 2021 and June 17, 2022.

SEC source: 0001708055-20-000205 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,812

F2 · shares: Payment of tax liability by delivering securities to the issuer incident to the vesting of a security.

SEC source: 0001708055-20-000205 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,106

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 into common stock on a one-for-one basis.

SEC source: 0001708055-20-000206 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,584

Underlying: Common Stock · 13,528 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 into common stock on a one-for-one basis.

F3 · derivative.exercise_date: 81,169 RSUs were granted on June 17, 2019 and vest over a three-year period as follows: one-third of the RSUs vested on June 17, 2020, one-sixth of the RSUs vested on December 17, 2020, and the remaining RSUs will vest as to one-sixth on each of June 17, 2021, December 17, 2021 and June 17, 2022.

F3 · derivative.expiration_date: 81,169 RSUs were granted on June 17, 2019 and vest over a three-year period as follows: one-third of the RSUs vested on June 17, 2020, one-sixth of the RSUs vested on December 17, 2020, and the remaining RSUs will vest as to one-sixth on each of June 17, 2021, December 17, 2021 and June 17, 2022.

SEC source: 0001708055-20-000206 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,061

F2 · shares: Payment of tax liability by delivering securities to the Issuer incident to the vesting of a security.

SEC source: 0001708055-20-000206 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,981

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 into common stock on a one-for-one basis.

SEC source: 0001708055-20-000202 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,500

Underlying: Common Stock · 2,499 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 into common stock on a one-for-one basis.

F3 · derivative.exercise_date: 15,000 RSUs were granted on June 15, 2018 and vest over a three-year period as follows: one-third of the RSUs vested on June 15, 2019 and one-sixth of the RSUs vested on each of December 15, 2019, June 15, 2020 and December 15, 2020. The remaining one-sixth of the RSUs will vest on June 15, 2021.

F3 · derivative.expiration_date: 15,000 RSUs were granted on June 15, 2018 and vest over a three-year period as follows: one-third of the RSUs vested on June 15, 2019 and one-sixth of the RSUs vested on each of December 15, 2019, June 15, 2020 and December 15, 2020. The remaining one-sixth of the RSUs will vest on June 15, 2021.

SEC source: 0001708055-20-000202 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,578

F2 · shares: Payment of tax liability by delivering securities to the issuer incident to the vesting of a security.

SEC source: 0001708055-20-000202 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,186

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 into common stock on a one-for-one basis.

SEC source: 0001708055-20-000200 · edgar.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,666

Underlying: Common Stock · 6,667 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 into common stock on a one-for-one basis.

F3 · derivative.exercise_date: 40,000 RSUs were granted on June 15, 2018 and vest over a three-year period as follows: one-third of the RSUs vested on June 15, 2019 and one-sixth of the RSUs vested on each of December 15, 2019, June 15, 2020 and December 15, 2020. The remaining one-sixth of the RSUs will vest on June 15, 2021.

F3 · derivative.expiration_date: 40,000 RSUs were granted on June 15, 2018 and vest over a three-year period as follows: one-third of the RSUs vested on June 15, 2019 and one-sixth of the RSUs vested on each of December 15, 2019, June 15, 2020 and December 15, 2020. The remaining one-sixth of the RSUs will vest on June 15, 2021.

SEC source: 0001708055-20-000200 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,453

F2 · shares: Payment of tax liability by delivering securities to the Issuer incident to the vesting of a security.