Dan Redington - 15 Dec 2023 Form 4 Insider Report for Ribbon Communications Inc. (RBBN)

Role: EVP, Global Sales
Signature: Patrick Macken, By POA from Dan Redington, EVP of Global Sales
Issuer symbol: RBBN
Transactions as of: 15 Dec 2023
Net transactions value: -$111,168
Form type: 4
Filing time: 18 Dec 2023, 16:46:23 UTC
Previous filing: 19 Apr 2023
Next filing: 23 Feb 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RBBN	Common Stock	Options Exercise	$0	+133,928		$0.000000	133,928	15 Dec 2023	Direct	F1
transaction	RBBN	Common Stock	Options Exercise	$0	+41,668	+31%	$0.000000	175,596	15 Dec 2023	Direct	F1
transaction	RBBN	Common Stock	Tax liability	$111,168	-42,757	-24%	$2.60	132,839	15 Dec 2023	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RBBN	Restricted Stock Units (RSUs)	Options Exercise	$0	-133,928	-100%	$0.000000^*	0	15 Dec 2023	Common Stock	133,928		Direct	F1, F3
transaction	RBBN	RSUs	Options Exercise	$0	-41,668	-33%	$0.000000	83,332	15 Dec 2023	Common Stock	41,668		Direct	F1, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The 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 the RSUs.
F3	The RSUs vested in full on the first anniversary of the date of grant.
F4	The RSUs vested as to one-third on the first anniversary of the date of grant, and the remaining two-thirds will vest in four equal semi-annual installments thereafter through December 15, 2025.