$HRGN 4 SEC Filings

10-12B 10-12B/A 10-K 10-K/A 10-Q 25-NSE 3 3/A 4 424B3 424B4 424B5 4/A 8-A12B 8-K 8-K/A ARS CERTNAS CORRESP CT ORDER D D/A DEF 14A DEFA14A DEFR14A DEL AM EFFECT NT 10-K NT 10-Q POS AM POS EX PRE 14A PRER14A RW S-1 S-1/A S-3 S-8 SC 13D SC 13D/A SC 13G SC 13G/A UPLOAD