CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q1 2021

Shares 5,208 Value ($000) $285 Avg Close $53.81 Range $47.52 - $57.57

Q4 2020

Shares 29,180 Value ($000) $1,543 Avg Close $44.43 Range $38.03 - $54.05

Q3 2020

Shares 54,692 Value ($000) $2,171 Avg Close $52.62 Range $38.20 - $61.52

Q2 2020

Shares 42,161 Value ($000) $2,284 Avg Close $49.71 Range $38.00 - $57.19

Q1 2020

Shares 11,576 Value ($000) $461 Avg Close $41.03 Range $30.58 - $44.61

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	5,208	$285	$53.81	$47.52 - $57.57
Q4 2020	29,180	$1,543	$44.43	$38.03 - $54.05
Q3 2020	54,692	$2,171	$52.62	$38.20 - $61.52
Q2 2020	42,161	$2,284	$49.71	$38.00 - $57.19
Q1 2020	11,576	$461	$41.03	$30.58 - $44.61