CIENA CORP

CUSIP: 171779AJ0 Class: NOTE 3.750%10/1

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2018
Shares 203,000 Value ($000) $314 Avg Close — Range —
Q2 2018
Shares 303,000 Value ($000) $401 Avg Close — Range —
Q1 2018
Shares 303,000 Value ($000) $399 Avg Close — Range —
Q4 2017
Shares 303,000 Value ($000) $352 Avg Close — Range —
Q3 2017
Shares 303,000 Value ($000) $367 Avg Close — Range —