WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

Bank of New York Mellon Corp's Holding History (CIK: 0001390777)

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

Q4 2017
Shares 157,682 Value ($000) $224 Avg Close — Range —
Q3 2017
Shares 182,022 Value ($000) $586 Avg Close — Range —
Q2 2017
Shares 191,712 Value ($000) $473 Avg Close — Range —
Q1 2017
Shares 172,234 Value ($000) $472 Avg Close — Range —
Q4 2016
Shares 165,434 Value ($000) $536 Avg Close — Range —
Q3 2016
Shares 138,648 Value ($000) $260 Avg Close — Range —
Q2 2016
Shares 146,047 Value ($000) $369 Avg Close — Range —
Q1 2016
Shares 51,338 Value ($000) $109 Avg Close — Range —
Q4 2015
Shares 83,559 Value ($000) $225 Avg Close — Range —
Q3 2015
Shares 52,488 Value ($000) $66 Avg Close — Range —
Q2 2015
Shares 51,338 Value ($000) $66 Avg Close — Range —
Q1 2015
Shares 297,891 Value ($000) $986 Avg Close — Range —
Q4 2014
Shares 226,700 Value ($000) $1,421 Avg Close — Range —
Q3 2014
Shares 235,148 Value ($000) $1,959 Avg Close — Range —
Q2 2014
Shares 215,856 Value ($000) $2,666 Avg Close — Range —
Q1 2014
Shares 219,102 Value ($000) $2,765 Avg Close — Range —
Q4 2013
Shares 244,918 Value ($000) $2,307 Avg Close — Range —
Q3 2013
Shares 243,044 Value ($000) $2,231 Avg Close — Range —
Q2 2013
Shares 236,548 Value ($000) $1,453 Avg Close — Range —