HELIX ENERGY SOLUTIONS GRP I

CUSIP: 42330PAJ6 Class: NOTE 4.125% 9/1

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

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

Q4 2020
Shares 8,300,000 Value ($000) $7,903 Avg Close — Range —
Q3 2020
Shares 8,300,000 Value ($000) $7,537 Avg Close — Range —
Q2 2020
Shares 8,312,000 Value ($000) $7,288 Avg Close — Range —
Q1 2020
Shares 8,319,000 Value ($000) $5,618 Avg Close — Range —
Q3 2019
Shares 10,519,000 Value ($000) $12,281 Avg Close — Range —
Q2 2019
Shares 10,519,000 Value ($000) $12,779 Avg Close — Range —
Q1 2019
Shares 10,519,000 Value ($000) $11,823 Avg Close — Range —
Q4 2018
Shares 6,050,000 Value ($000) $5,517 Avg Close — Range —
Q3 2018
Shares 10,000,000 Value ($000) $12,930 Avg Close — Range —
Q2 2018
Shares 10,000,000 Value ($000) $11,862 Avg Close — Range —
Q1 2018
Shares 10,000,000 Value ($000) $10,082 Avg Close — Range —