WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

STATE STREET CORP's Holding History (CIK: 0000093751)

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

Q4 2017
Shares 620,481 Value ($000) $882 Avg Close — Range —
Q3 2017
Shares 594,189 Value ($000) $1,912 Avg Close — Range —
Q2 2017
Shares 585,889 Value ($000) $1,447 Avg Close — Range —
Q1 2017
Shares 550,802 Value ($000) $1,509 Avg Close — Range —
Q4 2016
Shares 597,803 Value ($000) $1,938 Avg Close — Range —
Q3 2016
Shares 572,786 Value ($000) $1,078 Avg Close — Range —
Q2 2016
Shares 545,269 Value ($000) $1,379 Avg Close — Range —
Q1 2016
Shares 20,357 Value ($000) $44 Avg Close — Range —
Q4 2015
Shares 20,357 Value ($000) $54 Avg Close — Range —
Q3 2015
Shares 20,357 Value ($000) $26 Avg Close — Range —
Q2 2015
Shares 23,257 Value ($000) $31 Avg Close — Range —
Q1 2015
Shares 787,749 Value ($000) $2,609 Avg Close — Range —
Q4 2014
Shares 674,931 Value ($000) $4,233 Avg Close — Range —
Q3 2014
Shares 852,207 Value ($000) $7,098 Avg Close — Range —
Q2 2014
Shares 958,473 Value ($000) $11,836 Avg Close — Range —
Q1 2014
Shares 714,524 Value ($000) $9,014 Avg Close — Range —
Q4 2013
Shares 720,904 Value ($000) $6,789 Avg Close — Range —
Q3 2013
Shares 739,766 Value ($000) $6,795 Avg Close — Range —
Q2 2013
Shares 710,273 Value ($000) $4,362 Avg Close — Range —