ROWAN COMPANIES PLC

CUSIP: B840261 Class: SHS CL A

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q3 2014
Shares 29,907 Value ($000) $757 Avg Close — Range —
Q2 2014
Shares 29,845 Value ($000) $953 Avg Close — Range —
Q1 2014
Shares 29,940 Value ($000) $1,008 Avg Close — Range —
Q4 2013
Shares 30,640 Value ($000) $1,083 Avg Close — Range —
Q3 2013
Shares 26,255 Value ($000) $964 Avg Close — Range —
Q2 2013
Shares 19,540 Value ($000) $666 Avg Close — Range —