| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G | 2002-02-14 | BRADLEY DAVID G | ADVISORY BOARD CO | 2,489,394 | 20.5% | EDGAR |
| SC 13G | 2002-02-14 | ZIENTS JEFFREY D | ADVISORY BOARD CO | 3,536,400 | 27.9% | EDGAR |
| SC 13G | 2002-02-13 | FMR CORP | ADVISORY BOARD CO | 780,200 | 6.4% | EDGAR |
| SC 13G | 2002-02-13 | TCW GROUP INC | ADVISORY BOARD CO | 772,067 | 6.3% | EDGAR |