OCEAN RIG UDW INC

CUSIP: Y6435420 Class: SHS

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q1 2016
Shares 84,956 Value ($000) $70 Avg Close — Range —
Q4 2015
Shares 204,200 Value ($000) $333 Avg Close — Range —
Q3 2015
Shares 504,900 Value ($000) $2,590 Avg Close — Range —
Q2 2015
Shares 504,900 Value ($000) $2,590 Avg Close — Range —
Q1 2015
Shares 19,600 Value ($000) $129 Avg Close — Range —
Q1 2014
Shares 267,388 Value ($000) $4,757 Avg Close — Range —
Q4 2013
Shares 68,588 Value ($000) $1,320 Avg Close — Range —
Q3 2013
Shares 3,846 Value ($000) $70 Avg Close — Range —