| SC 13G/A | 2001-10-10 | UBS AG | ISHARES TRUST | 1,569 | 0.1% | EDGAR |
| SC 13G | 2001-09-11 | UBS AG | ISHARES TRUST | 353,569 | 21.4% | EDGAR |
| SC 13G | 2001-02-16 | GOVERNMENT OF SINGAPORE INVESTMENT CORP PTE LTD ET AL | ISHARES TRUST | 458,000 | 6.9% | EDGAR |
| SC 13G | 2001-02-14 | FRONTIER CAPITAL MANAGEMENT CO INC /ADV | ISHARES TRUST | 134,300 | 6.0% | EDGAR |
| SC 13G/A | 2001-02-08 | CHESAPEAKE CAPITAL CORP /IL/ | ISHARES TRUST | 27,000 | 6.0% | EDGAR |
| SC 13G/A | 2001-02-08 | CHESAPEAKE CAPITAL CORP /IL/ | ISHARES TRUST | 0 | 0.0% | EDGAR |
| SC 13G/A | 2000-11-13 | - | - | - | - | EDGAR |
| SC 13G/A | 2000-11-13 | - | - | - | - | EDGAR |
| SC 13G | 2000-10-10 | - | - | - | - | EDGAR |
| SC 13G | 2000-09-11 | - | - | - | - | EDGAR |
| SC 13G/A | 2000-09-11 | - | - | - | - | EDGAR |
| SC 13G | 2000-08-08 | - | - | - | - | EDGAR |
| SC 13G/A | 2000-08-07 | - | - | - | - | EDGAR |
| SC 13G | 2000-08-07 | - | - | - | - | EDGAR |