WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

ACADIAN ASSET MANAGEMENT LLC's Holding History (CIK: 0000916542)

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

Q2 2017
Shares 39,778 Value ($000) $98 Avg Close — Range —
Q1 2017
Shares 121,974 Value ($000) $335 Avg Close — Range —
Q4 2016
Shares 14,340 Value ($000) $46 Avg Close — Range —
Q3 2016
Shares 58,400 Value ($000) $110 Avg Close — Range —
Q2 2016
Shares 74,487 Value ($000) $187 Avg Close — Range —
Q1 2016
Shares 5,125 Value ($000) $11 Avg Close — Range —
Q2 2015
Shares 53,572 Value ($000) $69 Avg Close — Range —
Q1 2015
Shares 135,087 Value ($000) $447 Avg Close — Range —