WISCONSIN ENERGY CORP

CUSIP: 976657106 Class: COM

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q1 2015
Shares 11,991 Value ($000) $594 Avg Close — Range —
Q4 2014
Shares 18,393 Value ($000) $971 Avg Close — Range —
Q3 2014
Shares 103,021 Value ($000) $4,430 Avg Close — Range —
Q2 2014
Shares 153,099 Value ($000) $7,184 Avg Close — Range —
Q1 2014
Shares 155,449 Value ($000) $7,237 Avg Close — Range —
Q4 2013
Shares 160,049 Value ($000) $6,617 Avg Close — Range —
Q3 2013
Shares 166,954 Value ($000) $6,742 Avg Close — Range —
Q2 2013
Shares 155,354 Value ($000) $6,368 Avg Close — Range —