| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | BILL & MELINDA GATES FOUNDATION TRUST Other | Purchase 29-Oct-09 | 10,792,100 29-Oct-09 | BURDICK RICK L Director | Option Exercise 5-Aug-09 | 7,500 5-Aug-09 | CASCADE INVESTMENT LLC Other | Purchase 29-Oct-09 | 11,865,688 29-Oct-09 | FERRANDO JONATHAN P Officer | Option Exercise 4-Aug-09 | 31,000 4-Aug-09 | GOODMAN KIM C Director | Purchase 10-Nov-08 | 4,375 10-Nov-08 | GRUSKY ROBERT R Director | Purchase 11-Nov-08 | 5,200 11-Nov-08 | JACKSON MICHAEL J Officer | Option Exercise 6-Aug-09 | 15,000 6-Aug-09 | LAMPERT EDWARD S Beneficial Owner (10% or more) | Purchase 4-Feb-09 | 58,849,041
4-Feb-09 | MAROONE MICHAEL E Officer | Option Exercise 5-Aug-09 | 249,265 5-Aug-09 | MIGOYA CARLOS A Director | Purchase 29-Apr-08 | 7,000 29-Apr-08 | STEPHAN MICHAEL J Officer | Disposition (Non Open Market) 30-Jul-09 | 3,652 30-Jul-09 | WESTFALL KEVIN P Officer | Option Exercise 4-Aug-09 | 9,398 4-Aug-09 |
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