OMNICOM GROUP INC

CUSIP: 681919AV8 Class: CNV

Calamos Advisors LLC's Holding History (CIK: 0001316507)

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

Q2 2014
Shares 17,032,000 Value ($000) $22,468 Avg Close — Range —
Q1 2014
Shares 23,238,000 Value ($000) $30,943 Avg Close — Range —
Q4 2013
Shares 29,480,000 Value ($000) $39,974 Avg Close — Range —
Q3 2013
Shares 30,399,000 Value ($000) $36,828 Avg Close — Range —
Q2 2013
Shares 11,480,000 Value ($000) $13,195 Avg Close — Range —