CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

Asset Management One Co., Ltd.'s Holding History (CIK: 0001068855)

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

Q4 2025

Shares 54,863 Value ($000) $13,107 Avg Close $194.00 Range $143.19 - $248.00

Q1 2016

Shares 22,268 Value ($000) $421 Avg Close $18.47 Range $16.32 - $21.14

Q4 2015

Shares 31,921 Value ($000) $668 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 9,642 Value ($000) $196 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 7,879 Value ($000) $186 Avg Close $22.84 Range $18.75 - $26.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	54,863	$13,107	$194.00	$143.19 - $248.00
Q1 2016	22,268	$421	$18.47	$16.32 - $21.14
Q4 2015	31,921	$668	$22.97	$18.98 - $25.46
Q3 2015	9,642	$196	$23.24	$17.97 - $26.50
Q2 2015	7,879	$186	$22.84	$18.75 - $26.20