| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | BENTLEY CHRISTOPHER R Officer | Option Exercise 25-Mar-09 | 252,828 25-Mar-09 | BRDAR DANIEL Officer | Acquisition (Non Open Market) 18-Mar-09 | 72,330 18-Mar-09 | EPSTEIN GLENN H Director | Purchase 8-Sep-08 | 10,000 8-Sep-08 | KEMPNER THOMAS L Director | Disposition (Non Open Market) 5-Nov-08 | 282,834 5-Nov-08 | LAWSON WILLIAM A Director | Purchase 8-Oct-08 | 104,104 8-Oct-08 | LUDEMANN BRUCE A Officer | Acquisition (Non Open Market) 18-Mar-09 | 22,518 18-Mar-09 | MAHLER JOSEPH G Officer | Acquisition (Non Open Market) 18-Mar-09 | 177,749 18-Mar-09 | POSCO POWER CORP Beneficial Owner (10% or more) | Ownership Statement 30-Oct-09 | 10,786,418 30-Oct-09 | VON BRANCONI CHRISTOF FRANZ SALVADOR Director | Ownership Statement 14-Dec-07 | 2,746,548
14-Dec-07 |
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