RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2020

Shares 25,733 Value ($000) $169 Avg Close $5.28 Range $3.62 - $7.49

Q3 2020

Shares 23,397 Value ($000) $91 Avg Close $4.22 Range $3.61 - $5.64

Q2 2020

Shares 26,395 Value ($000) $104 Avg Close $3.63 Range $2.67 - $4.68

Q1 2020

Shares 46,320 Value ($000) $140 Avg Close $3.01 Range $1.95 - $3.68

Q4 2019

Shares 78,762 Value ($000) $244 Avg Close $3.98 Range $2.44 - $5.92

Q2 2019

Shares 7,255 Value ($000) $35 Avg Close $4.88 Range $4.23 - $5.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	25,733	$169	$5.28	$3.62 - $7.49
Q3 2020	23,397	$91	$4.22	$3.61 - $5.64
Q2 2020	26,395	$104	$3.63	$2.67 - $4.68
Q1 2020	46,320	$140	$3.01	$1.95 - $3.68
Q4 2019	78,762	$244	$3.98	$2.44 - $5.92
Q2 2019	7,255	$35	$4.88	$4.23 - $5.55