ENSCO PLC

CUSIP: G3157S106 Class: SHS CLASS A

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2018
Shares 3,031,143 Value ($000) $10,791 Avg Close — Range —
Q3 2018
Shares 2,359,996 Value ($000) $19,918 Avg Close — Range —
Q2 2018
Shares 372,089 Value ($000) $2,701 Avg Close — Range —