Ribbon Communications Inc. — Director's Dealing 2020

Apr 17, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ribbon Communications Inc. (RBBN)
CIK: 0001708055
Period of Report: 2020-04-15

Reporting Person: Marmurek Eric S (SVP and CAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-04-15	Common Stock	M	12113	—	Acquired	42861	Direct
2020-04-15	Common Stock	S	3422	$2.9197	Disposed	39439	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-04-15	Restricted Stock Units	$	M	12113	Disposed		Common Stock (12113)	Direct

Footnotes

F1: Restricted stock units (RSUs) convert into common stock on a one-for-one basis.

F2: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 instruction letter previously adopted by the Reporting Person and represent shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of RSUs.

F3: The RSUs vest over a three-year period as follows: one-third of the shares vested on April 15, 2020, and the remaining two-thirds of the shares will vest in four equal increments semi-annually thereafter through April 15, 2022.