Ribbon Communications Inc. — Director's Dealing 2021

Feb 17, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Ribbon Communications Inc. (RBBN)
CIK: 0001708055
Period of Report: 2021-02-15

Reporting Person: Bucci Sam (EVP & GM, IP Optical Networks)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-15	Common Stock	M	133333	—	Acquired	133.333	Direct
2021-02-15	Common Stock	F	57886	$10.54	Disposed	75447	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-15	Performance-Based Restricted Stock Units (PSUs)	$	M	133333	Disposed	2022-01-31	Common Stock (133333)	Direct

Footnotes

F1: Each PSU represents a contingent right to receive one share of the Issuer's common stock.

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

F3: 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.