WILLIAMS PARTNERS L P

CUSIP: 96950F104 Class: COM UNIT L P

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

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

Q4 2014
Shares 47,880 Value ($000) $2,143 Avg Close — Range —
Q3 2014
Shares 13,675 Value ($000) $725 Avg Close — Range —
Q2 2014
Shares 13,675 Value ($000) $742 Avg Close — Range —
Q1 2014
Shares 13,675 Value ($000) $697 Avg Close — Range —
Q4 2013
Shares 11,700 Value ($000) $595 Avg Close — Range —
Q3 2013
Shares 12,490 Value ($000) $660 Avg Close — Range —