RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

Grantham, Mayo, Van Otterloo & Co. LLC's Holding History (CIK: 0001352662)

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

Q1 2022

Shares 82,500 Value ($000) $255 Avg Close $4.10 Range $2.74 - $6.42

Q4 2019

Shares 11,300 Value ($000) $35 Avg Close $3.98 Range $2.44 - $5.92

Q3 2019

Shares 77,600 Value ($000) $453 Avg Close $5.25 Range $4.79 - $5.93

Q2 2019

Shares 222,700 Value ($000) $1,089 Avg Close $4.88 Range $4.23 - $5.55

Q1 2019

Shares 227,600 Value ($000) $1,172 Avg Close $5.36 Range $4.64 - $6.56

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	82,500	$255	$4.10	$2.74 - $6.42
Q4 2019	11,300	$35	$3.98	$2.44 - $5.92
Q3 2019	77,600	$453	$5.25	$4.79 - $5.93
Q2 2019	222,700	$1,089	$4.88	$4.23 - $5.55
Q1 2019	227,600	$1,172	$5.36	$4.64 - $6.56