$HLGN SEC Filings

Filing Filed On
FORM SC 13D/A 23 May 2024
AMENDMENT NO. 7 20 Feb 2024
SC 13D/A 07 Feb 2024
AMENDMENT NO. 6 06 Jul 2023
SC 13D/A 06 Jul 2023
AMENDMENT NO. 5 20 Jun 2023
SC 13D/A 15 Jun 2023
AMENDMENT NO. 4 12 Jun 2023
SC 13D/A 13 Apr 2023
AMENDMENT NO. 3 13 Apr 2023
AMENDMENT NO. 2 28 Mar 2023
AMENDMENT NO. 1 16 Feb 2023