WILLBROS GROUP INC DEL

CUSIP: 969203108 Class: COMMON STOCK

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

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

Q2 2015
Shares 37,049 Value ($000) $47 Avg Close — Range —
Q2 2014
Shares 12,696 Value ($000) $157 Avg Close — Range —
Q1 2014
Shares 37,213 Value ($000) $470 Avg Close — Range —