CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q1 2022

Shares 9,140 Value ($000) $554 Avg Close $65.45 Range $53.29 - $77.38

Q4 2021

Shares 19,270 Value ($000) $1,483 Avg Close $61.70 Range $51.01 - $78.28

Q2 2020

Shares 159,270 Value ($000) $8,626 Avg Close $49.71 Range $38.00 - $57.19

Q2 2015

Shares 539,225 Value ($000) $12,769 Avg Close $22.84 Range $18.75 - $26.20

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2022	9,140	$554	$65.45	$53.29 - $77.38
Q4 2021	19,270	$1,483	$61.70	$51.01 - $78.28
Q2 2020	159,270	$8,626	$49.71	$38.00 - $57.19
Q2 2015	539,225	$12,769	$22.84	$18.75 - $26.20