$HRTX SEC Filings

Filing Filed On
10-Q 15 May 2000
10-K/A 28 Apr 2000
10-K 28 Mar 2000
SC 13G/A 08 Feb 2000
10-Q/A 19 Nov 1999
10-K AMENDMENT NO. 2 19 Nov 1999
10-Q 19 Nov 1999
10-Q/A 19 Nov 1999
NT 10-Q 12 Nov 1999
10-Q 13 Aug 1999
11-K 15 Jun 1999
FORM DEF14A 19 May 1999
10-Q 14 May 1999
8-K 06 May 1999
DEFA14A 03 May 1999
10-K/A 30 Apr 1999
FORM PREC14A 28 Apr 1999
DEFA14A 27 Apr 1999
DEFA14A 22 Apr 1999
REQUEST FOR WITHDRAWAL OF FORM S-3 14 Apr 1999