WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q2 2015
Shares 62,173 Value ($000) $80 Avg Close — Range —
Q4 2014
Shares 43,400 Value ($000) $272 Avg Close — Range —
Q2 2014
Shares 15,545 Value ($000) $192 Avg Close — Range —
Q3 2013
Shares 11,600 Value ($000) $106 Avg Close — Range —