CIENA CORP

CUSIP: 171779AK7 Class: DEBT

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q1 2018
Shares 15,000,000 Value ($000) $21,130,000 Avg Close — Range —
Q4 2017
Shares 17,500,000 Value ($000) $22,881,000 Avg Close — Range —
Q3 2017
Shares 19,500,000 Value ($000) $25,892,000 Avg Close — Range —
Q2 2017
Shares 22,000,000 Value ($000) $31,085,000 Avg Close — Range —
Q2 2015
Shares 2,000,000 Value ($000) $2,821,000 Avg Close — Range —
Q1 2015
Shares 4,500,000 Value ($000) $5,701,000 Avg Close — Range —
Q4 2014
Shares 9,000,000 Value ($000) $11,182,000 Avg Close — Range —