| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 11/15/99 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 13 | |
| 10/27/99 | 11-K | Form 11-K: Annual report of employee stock purchase, savings and similar plans | 14 | |
| 10/20/99 | 424B3 | Form 424B3: Prospectus [Rule 424(b)(3)] | 1 | |
| 09/24/99 | SC 13D/A | Form SC 13D/A: General Statement of Acquisition of Beneficial Ownership | 7 | |
| 08/20/99 | S-8 | Form S-8: Securities to be offered to employees in employee benefit plans | 7 | |
| 08/16/99 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 13 | |
| 05/19/99 | S-3/A | Form S-3/A: Registration statement under Securities Act of 1933 | 31 | |
| 05/17/99 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 10 | |
| 05/13/99 | 8-K | Form 8-K: Current report | 5 | |
| 05/05/99 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 3 |