RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

Note: Option positions (PUT/CALL) are excluded.

Q3 2022

Shares 1,790 Value ($000) $4 Avg Close $3.17 Range $2.22 - $3.99

Q4 2017

Shares 20,000 Value ($000) $155 Avg Close $7.68 Range $6.89 - $9.05

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2022	1,790	$4	$3.17	$2.22 - $3.99
Q4 2017	20,000	$155	$7.68	$6.89 - $9.05