WISCONSIN ENERGY CORP

CUSIP: 976657106 Class: COM

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

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

Q4 2014
Shares 101,928 Value ($000) $5,376 Avg Close — Range —
Q3 2014
Shares 129,228 Value ($000) $5,557 Avg Close — Range —
Q2 2014
Shares 92,978 Value ($000) $4,363 Avg Close — Range —
Q1 2014
Shares 141,188 Value ($000) $6,572 Avg Close — Range —
Q4 2013
Shares 157,793 Value ($000) $6,523 Avg Close — Range —
Q3 2013
Shares 198,725 Value ($000) $8,025 Avg Close — Range —
Q2 2013
Shares 188,362 Value ($000) $7,721 Avg Close — Range —