WISCONSIN ENERGY CORP

CUSIP: 976657106 Class: COM

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q1 2015
Shares 416,688 Value ($000) $20,626 Avg Close — Range —
Q4 2014
Shares 418,089 Value ($000) $22,050 Avg Close — Range —
Q3 2014
Shares 419,489 Value ($000) $18,038 Avg Close — Range —
Q2 2014
Shares 419,789 Value ($000) $19,696 Avg Close — Range —
Q1 2014
Shares 433,286 Value ($000) $20,169 Avg Close — Range —
Q4 2013
Shares 443,686 Value ($000) $18,342 Avg Close — Range —
Q3 2013
Shares 463,712 Value ($000) $18,725 Avg Close — Range —
Q2 2013
Shares 467,660 Value ($000) $19,169 Avg Close — Range —