| SC 13G | 2003-12-10 | FMR CORP | CABOT MICROELECTRONICS CORP | 2,670,877 | 10.9% | EDGAR |
| SC 13G/A | 2003-03-10 | WASATCH ADVISORS INC | CABOT MICROELECTRONICS CORP | - | - | EDGAR |
| SC 13G/A | 2003-02-13 | WASATCH ADVISORS INC | CABOT MICROELECTRONICS CORP | - | - | EDGAR |
| SC 13G/A | 2003-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | CABOT MICROELECTRONICS CORP | 1,432,397 | 5.8% | EDGAR |
| SC 13G/A | 2003-02-07 | CITIGROUP INC | CABOT MICROELECTRONICS CORP | 2,303,551 | 9.5% | EDGAR |
| SC 13G/A | 2002-12-11 | WASATCH ADVISORS INC | CABOT MICROELECTRONICS CORP | - | - | EDGAR |
| SC 13G/A | 2002-10-11 | WASATCH ADVISORS INC | CABOT MICROELECTRONICS CORP | - | - | EDGAR |
| SC 13G/A | 2002-09-10 | FMR CORP | CABOT MICROELECTRONICS CORP | 1,052,167 | 4.3% | EDGAR |
| SC 13G/A | 2002-05-10 | CITIGROUP INC | CABOT MICROELECTRONICS CORP | 2,116,180 | 8.8% | EDGAR |
| SC 13G/A | 2002-03-07 | PRICE T ROWE ASSOCIATES INC /MD/ | CABOT MICROELECTRONICS CORP | 2,517,386 | 10.4% | EDGAR |
| SC 13G/A | 2002-02-20 | PRICE T ROWE ASSOCIATES INC /MD/ | CABOT MICROELECTRONICS CORP | 1,772,936 | 7.3% | EDGAR |
| SC 13G/A | 2002-02-13 | FMR CORP | CABOT MICROELECTRONICS CORP | 2,370,986 | 9.9% | EDGAR |
| SC 13G | 2002-02-12 | CITIGROUP INC | CABOT MICROELECTRONICS CORP | 1,327,754 | 5.5% | EDGAR |
| SC 13G/A | 2002-02-05 | PRICE T ROWE ASSOCIATES INC /MD/ | CABOT MICROELECTRONICS CORP | 1,772,936 | 7.3% | EDGAR |
| SC 13G/A | 2001-06-08 | GILDER GAGNON HOWE & CO LLC | CABOT MICROELECTRONICS CORP | - | 0.0% | EDGAR |
| SC 13G | 2001-04-10 | FMR CORP | CABOT MICROELECTRONICS CORP | 2,699,216 | 11.3% | EDGAR |
| SC 13G | 2001-02-13 | PRICE T ROWE ASSOCIATES INC /MD/ | CABOT MICROELECTRONICS CORP | 1,557,497 | 6.6% | EDGAR |
| SC 13G | 2001-02-09 | GILDER GAGNON HOWE & CO LLC | CABOT MICROELECTRONICS CORP | 1,260,154 | 5.3% | EDGAR |