Ribbon Communications Inc. — Director's Dealing 2019

Apr 16, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ribbon Communications Inc. (RBBN)
CIK: 0001708055
Period of Report: 2019-04-15

Reporting Person: Marmurek Eric S (Principal Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-04-15	Common Stock	A	36338	—	Acquired	69297	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-04-15	Performance-Based Restricted Stock Units (PSUs)	$	A	36338	Acquired	2021-12-31	Common Stock (36338)	Direct

Footnotes

F1: The restricted stock units vest over a three-year period as follows: one-third of the shares shall vest on April 15, 2020, and the remaining two-thirds of the shares shall vest in four equal increments semi-annually thereafter through April 15, 2022.

F2: 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 the Russell 2500 Telecommunications Sub Sector Index, that were set by the Compensation Committee (the Compensation Committee) of the Issuer's Board of Directors. The aggregate number of shares issued may range from zero (0) 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.

F3: Between zero (0) and 200% of one-third of the PSUs will vest, if at all, as determined by the Compensation Committee after the TSR performance period, commencing on January 1, 2019 and ending on December 31, 2021.