WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

Russell Investments Group, Ltd.'s Holding History (CIK: 0001692234)

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

Q3 2017
Shares 83,011 Value ($000) $267 Avg Close — Range —
Q2 2017
Shares 236,977 Value ($000) $585 Avg Close — Range —
Q1 2017
Shares 371,851 Value ($000) $1,018 Avg Close — Range —
Q4 2016
Shares 404,039 Value ($000) $1,261 Avg Close — Range —