CIENA CORP

Ticker: CIEN CUSIP: 171779309 Class: EQTY

SILVERBACK ASSET MANAGEMENT LLC's Holding History (CIK: 0001278960)

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

Q4 2015

Shares 245,002 Value ($000) $5,069 Avg Close $22.97 Range $18.98 - $25.46

Q3 2015

Shares 328,289 Value ($000) $6,802 Avg Close $23.24 Range $17.97 - $26.50

Q2 2015

Shares 230,594 Value ($000) $5,460 Avg Close $22.84 Range $18.75 - $26.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	245,002	$5,069	$22.97	$18.98 - $25.46
Q3 2015	328,289	$6,802	$23.24	$17.97 - $26.50
Q2 2015	230,594	$5,460	$22.84	$18.75 - $26.20