$PBIO
Market Cap:
$PBIO SEC Filings
| Filing | Filed On |
|---|---|
| SCHEDULE 13G | 21 Feb 1997 |
| SCHEDULE 13G | 14 Feb 1997 |
| FORM 10-Q | 16 Dec 1996 |
| FINAL PROSPECTUS | 31 Oct 1996 |
| FORM 8-A | 25 Oct 1996 |
| AMD. NO.2 TO FORM S-1 | 25 Oct 1996 |
| AMD. NO.1 TO FORM S-1 | 08 Oct 1996 |
| FORM S-1 | 23 Aug 1996 |
