ENSCO PLC

CUSIP: G3157S106 Class: SHS CLASS A

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

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

Q4 2014
Shares 393,900 Value ($000) $11,797 Avg Close — Range —
Q3 2014
Shares 309,140 Value ($000) $12,771 Avg Close — Range —
Q2 2014
Shares 307,955 Value ($000) $17,113 Avg Close — Range —
Q1 2014
Shares 332,357 Value ($000) $17,542 Avg Close — Range —
Q4 2013
Shares 364,522 Value ($000) $20,843 Avg Close — Range —
Q3 2013
Shares 352,382 Value ($000) $18,941 Avg Close — Range —
Q2 2013
Shares 417,672 Value ($000) $24,275 Avg Close — Range —