PROOFPOINT INC

CUSIP: 743424AB9 Class: CONV

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

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

Q3 2017
Shares 15,000,000 Value ($000) $33,437 Avg Close — Range —
Q2 2017
Shares 15,000,000 Value ($000) $33,437 Avg Close — Range —
Q1 2017
Shares 15,000,000 Value ($000) $28,794 Avg Close — Range —
Q4 2016
Shares 15,000,000 Value ($000) $27,512 Avg Close — Range —
Q3 2016
Shares 15,000,000 Value ($000) $29,197 Avg Close — Range —
Q2 2016
Shares 7,500,000 Value ($000) $12,297 Avg Close — Range —
Q1 2016
Shares 7,500,000 Value ($000) $10,998 Avg Close — Range —
Q4 2015
Shares 7,500,000 Value ($000) $13,058 Avg Close — Range —
Q3 2015
Shares 7,500,000 Value ($000) $12,202 Avg Close — Range —
Q2 2015
Shares 7,500,000 Value ($000) $12,697 Avg Close — Range —
Q1 2015
Shares 7,500,000 Value ($000) $12,014 Avg Close — Range —
Q4 2014
Shares 21,934,000 Value ($000) $30,523 Avg Close — Range —