$PDCO SEC Filings

Filing Filed On
SCHEDULE 13G AMENDMENT NO. 6 12 Feb 1999
SC 13G/A 11 Feb 1999
FORM 10-Q 07 Dec 1998
FORM 10-Q 04 Sep 1998
FINAL PROSPECTUS 28 Aug 1998
FORM S-3 14 Aug 1998
DEFINITIVE PROXY STATEMENT 04 Aug 1998
FORM 10-K405 16 Jul 1998
FORM 10-Q 06 Mar 1998
SCHEDULE 13G AMENDMENT NO. 5 13 Feb 1998
SCHEDULE 13G AMENDMENT NO. 2 13 Feb 1998
SCHEDULE 13G AMENDMENT NO. 5 13 Feb 1998
SC 13G/A 10 Feb 1998
FORM 8-K 13 Jan 1998
AMENDMENT NO. 1 TO FORM S-3 08 Dec 1997
FORM 10-Q 05 Dec 1997
FORM S-3 26 Nov 1997
FORM 8-K 26 Nov 1997
FORM 10-Q 08 Sep 1997
FORM 8-K 05 Sep 1997