| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G | 2005-02-11 | PZENA INVESTMENT MANAGEMENT LLC | WISCONSIN ENERGY CORP | 7,156,485 | 6.1% | EDGAR |
| SC 13G | 2004-02-17 | FMR CORP | WISCONSIN ENERGY CORP | 8,372,916 | 7.1% | EDGAR |
| SC 13G | 2004-02-10 | AXA FINANCIAL INC | WISCONSIN ENERGY CORP | 10,710,721 | 9.1% | EDGAR |
| SC 13G/A | 2003-08-18 | WISCONSIN ENERGY CORP | ARI NETWORK SERVICES INC /WI | 0 | 0.0% | EDGAR |
| SC 13G/A | 2003-02-12 | AXA FINANCIAL INC | WISCONSIN ENERGY CORP | 10,695,176 | 9.3% | EDGAR |
| SC 13G | 2002-12-06 | WISCONSIN ENERGY CORP | ARI NETWORK SERVICES INC /WI | 1,055,308 | 17.0% | EDGAR |
| SC 13G/A | 2002-02-12 | AXA FINANCIAL INC | WISCONSIN ENERGY CORP | 11,023,010 | 9.5% | EDGAR |
| SC 13G/A | 2002-02-11 | J P MORGAN CHASE & CO | WISCONSIN ENERGY CORP | 5,280,701 | 4.5% | EDGAR |
| SC 13G/A | 2002-02-08 | DODGE & COX | WISCONSIN ENERGY CORP | 7,879,985 | 6.8% | EDGAR |
| SC 13G/A | 2001-02-14 | J P MORGAN CHASE & CO | WISCONSIN ENERGY CORP | 6,380,992 | 5.2% | EDGAR |
| SC 13G/A | 2001-02-14 | DODGE & COX | WISCONSIN ENERGY CORP | 6,736,028 | 5.6% | EDGAR |
| SC 13G | 2001-02-12 | AXA FINANCIAL INC | WISCONSIN ENERGY CORP | 11,180,280 | 9.2% | EDGAR |
| SC 13G/A | 2000-11-08 | - | - | - | - | EDGAR |
| SC 13G/A | 2000-02-15 | MORGAN J P & CO INC | WISCONSIN ENERGY CORP | 8,694,391 | 7.4% | EDGAR |
| SC 13G/A | 2000-02-15 | MORGAN J P & CO INC | WISCONSIN ENERGY CORP | 8,694,391 | 7.4% | EDGAR |
| SC 13G/A | 2000-02-15 | MORGAN J P & CO INC | WISCONSIN ENERGY CORP | 8,694,391 | 7.4% | EDGAR |
| SC 13G | 2000-02-14 | CAPITAL RESEARCH & MANAGEMENT CO | WISCONSIN ENERGY CORP | - | - | EDGAR |
| SC 13G | 2000-02-14 | CAPITAL RESEARCH & MANAGEMENT CO | WISCONSIN ENERGY CORP | - | - | EDGAR |
| SC 13G | 2000-02-14 | DODGE & COX | WISCONSIN ENERGY CORP | 6,040,300 | 5.1% | EDGAR |
| SC 13G | 2000-02-14 | CAPITAL RESEARCH & MANAGEMENT CO | WISCONSIN ENERGY CORP | - | - | EDGAR |