CALAMOS CONV OPPORTUNITIES &

CUSIP: 128117108 Class: SH BEN INT

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

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

Q4 2015
Shares 21,000 Value ($000) $208 Avg Close — Range —
Q3 2015
Shares 41,700 Value ($000) $412 Avg Close — Range —