$HRTX SEC Filings

Filing Filed On
10-K 30 Mar 1999
S-3 AMENDMENT NO. 2 22 Mar 1999
FORM S-3/A 17 Feb 1999
SC 13G/A 22 Jan 1999
FORM S-3 29 Dec 1998
10-Q 13 Nov 1998
10-Q 12 Aug 1998
FORM S-8 04 Aug 1998
SCHEDULE 13G 10 Jul 1998
10-Q 14 May 1998
NOTICE AND PROXY STATEMENT 29 Apr 1998
SC 13G/A 09 Apr 1998
10-K 30 Mar 1998
11-K 30 Mar 1998
AMENDED SCHEDULE 13D 12 Mar 1998
SCHEDULE 13G/A 16 Jan 1998
10-Q 12 Nov 1997
FORM S-8 08 Sep 1997
QUARTERLY REPORT 12 Aug 1997
QUARTERLY REPORT 14 May 1997