FILINGS
| HLGN 0001840292 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2023-06-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-21 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-06-20 | 144 | View Document | |
| 2023-06-20 | SC 13D/A | AMENDMENT NO. 5 | View Document |
| 2023-06-20 | 144 | View Document | |
| 2023-06-20 | 144 | View Document | |
| 2023-06-20 | ARS | ANNUAL REPORT | View Document |
| 2023-06-20 | DEF 14A | PROXY STATEMENT | View Document |
| 2023-06-20 | SC 13G/A | SC 13G/A | View Document |
| 2023-06-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-15 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-06-15 | SC 13D/A | View Document | |
| 2023-06-14 | 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | View Document |
| 2023-06-13 | 144 | View Document | |
| 2023-06-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-12 | 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | View Document |
| 2023-06-12 | SC 13D/A | AMENDMENT NO. 4 | View Document |
| 2023-06-09 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-06-09 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-09 | S-3/A | AMENDMENT NO. 2 TO FORM S-3 | View Document |
| 2023-06-08 | 144 | View Document | |
| 2023-06-08 | 144 | View Document | |
| 2023-06-07 | PRE 14A | PROXY STATEMENT | View Document |
| 2023-06-07 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-05 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-06-05 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-06-01 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-30 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-22 | 4/A | PRIMARY DOCUMENT | View Document |
| 2023-05-22 | 3/A | PRIMARY DOCUMENT | View Document |
| 2023-05-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-10 | CORRESP | View Document | |
| 2023-05-10 | S-3/A | AMENDMENT NO. 1 TO FORM S-3 | View Document |
| 2023-05-10 | 10-Q | 10-Q | View Document |
| 2023-05-09 | 8-K | 8-K | View Document |
| 2023-05-05 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-05 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-05 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-05-05 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-04-24 | 8-K | CURRENT REPORT | View Document |
| 2023-04-20 | UPLOAD | View Document | |
| 2023-04-20 | CERT | NYSE CERTIFICATION | View Document |
| 2023-04-17 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-04-17 | 8-A12B | FOR REGISTRATION OF CERTAIN CLASSES | View Document |
| 2023-04-17 | 8-K | CURRENT REPORT | View Document |
| 2023-04-14 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-04-14 | 3 | PRIMARY DOCUMENT | View Document |
| 2023-04-14 | 8-K | CURRENT REPORT | View Document |
| 2023-04-13 | SC 13D/A | View Document | |
| 2023-04-13 | SC 13D/A | AMENDMENT NO. 3 | View Document |
| 2023-04-12 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-04-10 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-04-06 | S-3 | REGISTRATION STATEMENT | View Document |
| 2023-04-06 | 424B3 | PROSPECTUS | View Document |
| 2023-04-05 | EFFECT | View Document | |
| 2023-03-30 | POS AM | REGISTRATION STATEMENT | View Document |
| 2023-03-29 | 10-K | 10-K | View Document |
| 2023-03-28 | 8-K | 8-K | View Document |
| 2023-03-28 | SC 13D/A | AMENDMENT NO. 2 | View Document |
| 2023-03-27 | 4 | FORM 4 SUBMISSION | View Document |
| 2023-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-03-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-03-16 | 144 | View Document | |
| 2023-03-16 | 144 | View Document | |
| 2023-03-16 | 144 | View Document | |
| 2023-03-15 | 144 | View Document | |
| 2023-03-15 | 144 | View Document | |
| 2023-03-15 | 144 | View Document | |
| 2023-03-06 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-03-06 | 3 | PRIMARY DOCUMENT | View Document |
| 2023-03-06 | 8-K | 8-K | View Document |
| 2023-02-16 | 8-K | 8-K | View Document |
| 2023-02-16 | SC 13D/A | AMENDMENT NO. 1 | View Document |
| 2023-02-13 | SC 13D | THE SCHEDULE 13D | View Document |
| 2023-02-10 | 3 | FORM 3 SUBMISSION | View Document |
| 2023-02-10 | S-8 | REGISTRATION STATEMENT | View Document |
| 2023-02-06 | 8-K | CURRENT REPORT | View Document |
| 2023-02-02 | SC 13G/A | SC 13G/A | View Document |
| 2023-01-05 | UPLOAD | View Document | |
| 2022-12-28 | 8-K | CURRENT REPORT | View Document |
| 2022-12-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-14 | CORRESP | View Document | |
| 2022-12-09 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-06 | UPLOAD | View Document | |
| 2022-11-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-09 | 424B3 | PROSPECTUS SUPPLEMENT NO. 3 | View Document |
| 2022-11-08 | 10-Q | 10-Q | View Document |
| 2022-11-08 | 8-K | 8-K | View Document |
| 2022-09-14 | 8-K | 8-K | View Document |
| 2022-09-14 | 4 | FORM 4 SUBMISSION | View Document |
| 2022-09-14 | 3 | FORM 3 SUBMISSION | View Document |
| 2022-09-13 | 8-K | 8-K | View Document |
| 2022-09-07 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-09-06 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-08-26 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2022-08-24 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2022-08-23 | 8-K | CURRENT REPORT | View Document |
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