RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 173,702 Value ($000) $500 Avg Close $3.23 Range $2.72 - $4.09

Q3 2025

Shares 346,095 Value ($000) $1,315 Avg Close $3.93 Range $3.57 - $4.29

Q2 2022

Shares 104,654 Value ($000) $318 Avg Close $3.02 Range $2.57 - $3.65

Q1 2022

Shares 230,524 Value ($000) $712 Avg Close $4.10 Range $2.74 - $6.42

Q1 2021

Shares 18,082 Value ($000) $148 Avg Close $8.28 Range $6.22 - $11.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	173,702	$500	$3.23	$2.72 - $4.09
Q3 2025	346,095	$1,315	$3.93	$3.57 - $4.29
Q2 2022	104,654	$318	$3.02	$2.57 - $3.65
Q1 2022	230,524	$712	$4.10	$2.74 - $6.42
Q1 2021	18,082	$148	$8.28	$6.22 - $11.25