Ribbon Communications Inc. — Director's Dealing 2021

Oct 19, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ribbon Communications Inc. (RBBN)
CIK: 0001708055
Period of Report: 2021-10-15

Reporting Person: Marmurek Eric S (SVP, Finance & CAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-10-15	Common Stock	M	6056	—	Acquired	79231	Direct
2021-10-15	Common Stock	F	1474	$6.35	Disposed	77757	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-10-15	Restricted Stock Units (RSU)	$	M	6056	Disposed		Common Stock (6056)	Direct

Footnotes

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

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

F3: The RSUs vest over a 3-year period as follows: 1/3 vest on 4/15/2020, and the remaining 2/3 vest in 4 equal increments semi-annually thereafter through 4/15/2022.