ENSCO PLC

CUSIP: G3157S106 Class: SHS CLASS A

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q1 2017
Shares 90,239 Value ($000) $808 Avg Close — Range —
Q4 2016
Shares 163,616 Value ($000) $1,590 Avg Close — Range —
Q3 2016
Shares 334,320 Value ($000) $2,842 Avg Close — Range —
Q2 2016
Shares 341,920 Value ($000) $3,320 Avg Close — Range —
Q1 2016
Shares 308,210 Value ($000) $3,196 Avg Close — Range —
Q4 2015
Shares 315,260 Value ($000) $4,852 Avg Close — Range —
Q3 2015
Shares 444,550 Value ($000) $6,259 Avg Close — Range —
Q2 2015
Shares 449,400 Value ($000) $10,008 Avg Close — Range —
Q1 2015
Shares 269,600 Value ($000) $5,680 Avg Close — Range —
Q4 2014
Shares 269,600 Value ($000) $8,075 Avg Close — Range —
Q3 2014
Shares 269,600 Value ($000) $11,137 Avg Close — Range —
Q4 2013
Shares 129,052 Value ($000) $7,379 Avg Close — Range —
Q3 2013
Shares 153,374 Value ($000) $8,244 Avg Close — Range —
Q2 2013
Shares 153,374 Value ($000) $8,914 Avg Close — Range —