WISCONSIN ENERGY CORP

CUSIP: 976657106 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q1 2015
Shares 3,976,244 Value ($000) $196,823 Avg Close — Range —
Q4 2014
Shares 4,044,885 Value ($000) $213,327 Avg Close — Range —
Q3 2014
Shares 4,008,592 Value ($000) $172,370 Avg Close — Range —
Q2 2014
Shares 4,063,334 Value ($000) $190,652 Avg Close — Range —
Q1 2014
Shares 4,032,082 Value ($000) $187,693 Avg Close — Range —
Q4 2013
Shares 4,107,226 Value ($000) $169,793 Avg Close — Range —
Q3 2013
Shares 3,098,732 Value ($000) $125,127 Avg Close — Range —
Q2 2013
Shares 3,210,257 Value ($000) $131,588 Avg Close — Range —