ROWAN COMPANIES PLC

CUSIP: G7665A101 Class: SHS CL A

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q4 2014
Shares 1,830,645 Value ($000) $42,691 Avg Close — Range —
Q3 2014
Shares 1,731,325 Value ($000) $43,820 Avg Close — Range —
Q2 2014
Shares 1,793,710 Value ($000) $57,273 Avg Close — Range —
Q1 2014
Shares 1,847,120 Value ($000) $62,211 Avg Close — Range —
Q4 2013
Shares 2,015,280 Value ($000) $71,260 Avg Close — Range —
Q3 2013
Shares 2,101,410 Value ($000) $77,164 Avg Close — Range —
Q2 2013
Shares 2,138,000 Value ($000) $72,841 Avg Close — Range —