WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

STRS OHIO's Holding History (CIK: 0000820478)

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

Q4 2017
Shares 207,100 Value ($000) $294 Avg Close — Range —
Q3 2017
Shares 207,100 Value ($000) $666 Avg Close — Range —
Q2 2017
Shares 222,300 Value ($000) $549 Avg Close — Range —
Q1 2017
Shares 222,300 Value ($000) $609 Avg Close — Range —
Q4 2016
Shares 213,500 Value ($000) $691 Avg Close — Range —
Q3 2016
Shares 119,200 Value ($000) $224 Avg Close — Range —
Q2 2016
Shares 123,600 Value ($000) $312 Avg Close — Range —
Q3 2014
Shares 77,600 Value ($000) $646 Avg Close — Range —
Q2 2014
Shares 60,500 Value ($000) $747 Avg Close — Range —
Q1 2014
Shares 19,400 Value ($000) $245 Avg Close — Range —
Q3 2013
Shares 6,200 Value ($000) $57 Avg Close — Range —
Q2 2013
Shares 78,146 Value ($000) $480 Avg Close — Range —