WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

BRIDGEWAY CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001107261)

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

Q4 2017
Shares 358,300 Value ($000) $509 Avg Close — Range —
Q3 2017
Shares 445,509 Value ($000) $1,435 Avg Close — Range —
Q2 2017
Shares 626,609 Value ($000) $1,548 Avg Close — Range —
Q1 2017
Shares 626,609 Value ($000) $1,717 Avg Close — Range —
Q4 2016
Shares 1,029,200 Value ($000) $3,335 Avg Close — Range —
Q3 2016
Shares 1,029,200 Value ($000) $1,935 Avg Close — Range —
Q2 2016
Shares 1,029,200 Value ($000) $2,604 Avg Close — Range —
Q1 2016
Shares 483,300 Value ($000) $1,029 Avg Close — Range —
Q4 2015
Shares 483,300 Value ($000) $1,300 Avg Close — Range —
Q3 2015
Shares 425,000 Value ($000) $536 Avg Close — Range —
Q2 2015
Shares 425,000 Value ($000) $544 Avg Close — Range —
Q2 2013
Shares 105,400 Value ($000) $647 Avg Close — Range —