RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

KBC Group NV's Holding History (CIK: 0001411133)

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

Q3 2018

Shares 52,279 Value ($000) $357 Avg Close $7.12 Range $6.36 - $7.89

Q2 2018

Shares 64,251 Value ($000) $457 Avg Close $5.86 Range $4.97 - $7.28

Q1 2018

Shares 95,017 Value ($000) $485 Avg Close $6.47 Range $5.01 - $7.93

Q4 2017

Shares 38,892 Value ($000) $301 Avg Close $7.68 Range $6.89 - $9.05

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	52,279	$357	$7.12	$6.36 - $7.89
Q2 2018	64,251	$457	$5.86	$4.97 - $7.28
Q1 2018	95,017	$485	$6.47	$5.01 - $7.93
Q4 2017	38,892	$301	$7.68	$6.89 - $9.05