ENSCO PLC CL A

CUSIP: B4VLR19 Class: SHS CLASS A

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

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

Q4 2014
Shares 16,404 Value ($000) $491 Avg Close — Range —
Q3 2014
Shares 26,845 Value ($000) $1,108 Avg Close — Range —
Q2 2014
Shares 20,297 Value ($000) $1,127 Avg Close — Range —
Q1 2014
Shares 11,797 Value ($000) $622 Avg Close — Range —
Q4 2013
Shares 12,136 Value ($000) $694 Avg Close — Range —