$HLGN SEC Filings

Filing Filed On
UPLOAD 05 Jan 2023
CURRENT REPORT 28 Dec 2022
PRIMARY DOCUMENT 22 Dec 2022
CORRESP 14 Dec 2022
PRIMARY DOCUMENT 09 Dec 2022
UPLOAD 06 Dec 2022
PRIMARY DOCUMENT 22 Nov 2022
PROSPECTUS SUPPLEMENT NO. 3 09 Nov 2022
10-Q 08 Nov 2022
8-K 08 Nov 2022
FORM 4 SUBMISSION 14 Sep 2022
FORM 3 SUBMISSION 14 Sep 2022
8-K 14 Sep 2022
8-K 13 Sep 2022
PRIMARY DOCUMENT 07 Sep 2022
PRIMARY DOCUMENT 06 Sep 2022
OWNERSHIP DOCUMENT 26 Aug 2022
OWNERSHIP DOCUMENT 24 Aug 2022
CURRENT REPORT 23 Aug 2022
FORM 4 22 Aug 2022