FILINGS
| HYLN 0001759631 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2021-08-30 | 3 | FORM 3 | View Document |
| 2021-08-27 | 4 | FORM 4 | View Document |
| 2021-08-26 | 424B3 | 424B3 | View Document |
| 2021-08-26 | 8-K | 8-K | View Document |
| 2021-08-24 | 3 | FORM 3 | View Document |
| 2021-08-24 | 424B3 | 424B3 | View Document |
| 2021-08-24 | 8-K | 8-K | View Document |
| 2021-08-17 | 424B3 | 424B3 | View Document |
| 2021-08-16 | 3 | FORM 3 | View Document |
| 2021-08-16 | 8-K | 8-K | View Document |
| 2021-08-12 | 424B3 | 424B3 | View Document |
| 2021-08-12 | 10-Q/A | 10-Q/A | View Document |
| 2021-08-11 | 424B3 | 424B3 | View Document |
| 2021-08-11 | 10-Q | 10-Q | View Document |
| 2021-08-11 | 8-K | 8-K | View Document |
| 2021-08-04 | 4 | FORM 4 | View Document |
| 2021-08-02 | 4 | FORM 4 | View Document |
| 2021-07-30 | 4 | FORM 4 | View Document |
| 2021-07-15 | 424B3 | PROSPECTUS | View Document |
| 2021-07-14 | EFFECT | View Document | |
| 2021-07-09 | POS AM | POST-EFFECTIVE AMENDMENT NO. 1 TO REGISTRATION STATEMENT | View Document |
| 2021-07-07 | 4/A | FORM 4/A | View Document |
| 2021-07-02 | 4 | FORM 4 | View Document |
| 2021-06-29 | 4 | FORM 4 | View Document |
| 2021-06-14 | 8-K | 8-K | View Document |
| 2021-06-07 | SC 13D/A | AMENDMENT NO. 2 TO SCHEDULE 13D | View Document |
| 2021-06-04 | 4 | FORM 4 | View Document |
| 2021-06-03 | 4 | FORM 4 | View Document |
| 2021-06-01 | SD | SD | View Document |
| 2021-05-26 | 4 | FORM 4 | View Document |
| 2021-05-25 | 4 | FORM 4 | View Document |
| 2021-05-24 | 424B3 | 424B3 | View Document |
| 2021-05-24 | SC 13D/A | View Document | |
| 2021-05-21 | 4 | View Document | |
| 2021-05-21 | 4 | View Document | |
| 2021-05-20 | 4 | View Document | |
| 2021-05-17 | 424B3 | 424B3 | View Document |
| 2021-05-17 | 424B3 | PROSPECTUS SUPPLEMENT | View Document |
| 2021-05-17 | 10-Q | 10-Q | View Document |
| 2021-05-17 | 10-K/A | AMENDMENT NO. 1 TO FORM 10-K | View Document |
| 2021-05-12 | 8-K | CURRENT REPORT | View Document |
| 2021-05-11 | 424B3 | PROSPECTUS SUPPLEMENT | View Document |
| 2021-05-11 | 424B3 | PROSPECTUS SUPPLEMENT | View Document |
| 2021-05-11 | 8-K | CURRENT REPORT | View Document |
| 2021-04-30 | 424B3 | 424B3 | View Document |
| 2021-04-29 | 4 | View Document | |
| 2021-04-29 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | View Document |
| 2021-04-29 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2021-04-07 | 8-K | CURRENT REPORT | View Document |
| 2021-04-01 | 8-K | CURRENT REPORT | View Document |
| 2021-03-31 | 424B3 | PROSPECTUS SUPPLEMENT | View Document |
| 2021-03-30 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-30 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-30 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-30 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-30 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-30 | 4 | View Document | |
| 2021-03-30 | 4 | View Document | |
| 2021-03-30 | 4 | View Document | |
| 2021-03-30 | 4 | View Document | |
| 2021-03-04 | 4 | View Document | |
| 2021-03-02 | SC 13G/A | SC 13G/A | View Document |
| 2021-02-26 | 424B3 | PROSPECTUS SUPPLEMENT | View Document |
| 2021-02-26 | 10-K | ANNUAL REPORT | View Document |
| 2021-02-24 | 8-K | CURRENT REPORT | View Document |
| 2021-02-16 | SC 13G | View Document | |
| 2021-02-16 | SC 13G/A | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | View Document |
| 2021-02-16 | SC 13G/A | AMENDMENT NO. 2 TO SCHEDULE 13G | View Document |
| 2021-02-12 | SC 13G/A | KARPUS INVESTMENT MGT / HYLIION HOLDINGS (FKA TORTOISE ACQUISITION CORP) - SCHED | View Document |
| 2021-02-11 | SC 13G/A | AMENDMENT NO. 1 TO SCHEDULE 13G | View Document |
| 2021-02-11 | SC 13G/A | HYLIION HOLDINGS CORP. | View Document |
| 2021-02-09 | 3 | FORM 3 SUBMISSION | View Document |
| 2021-01-27 | 3 | FORM 3 SUBMISSION | View Document |
| 2021-01-22 | 8-K | CURRENT REPORT | View Document |
| 2021-01-20 | 4 | FORM 4 SUBMISSION | View Document |
| 2021-01-12 | 8-K | CURRENT REPORT | View Document |
| 2020-12-30 | 25-NSE | View Document | |
| 2020-12-29 | 4 | FORM 4 SUBMISSION | View Document |
| 2020-12-28 | 4 | FORM 4 SUBMISSION | View Document |
| 2020-12-14 | S-8 | REGISTRATION STATEMENT | View Document |
| 2020-12-07 | 8-K | CURRENT REPORT | View Document |
| 2020-12-02 | 3/A | FORM 3/A SUBMISSION | View Document |
| 2020-11-30 | 8-K | CURRENT REPORT | View Document |
| 2020-11-27 | EFFECT | View Document | |
| 2020-11-27 | 3 | FORM 3 SUBMISSION | View Document |
| 2020-11-27 | 424B3 | View Document | |
| 2020-11-24 | CORRESP | View Document | |
| 2020-11-23 | CORRESP | View Document | |
| 2020-11-23 | S-1/A | REGISTRATION STATEMENT | View Document |
| 2020-11-20 | CORRESP | View Document | |
| 2020-11-13 | UPLOAD | View Document | |
| 2020-11-12 | 8-K/A | AMENDMENT NO.2 TO CURRENT REPORT | View Document |
| 2020-11-12 | 10-Q | QUARTERLY REPORT | View Document |
| 2020-11-12 | 8-K | CURRENT REPORT | View Document |
| 2020-10-29 | 8-K | CURRENT REPORT | View Document |
| 2020-10-23 | S-1 | REGISTRATION STATEMENT | View Document |
| 2020-10-21 | SC 13G | SC 13G | View Document |
| 2020-10-13 | SC 13D | View Document | |
| 2020-10-13 | SC 13G | SC 13G | View Document |
| 2020-10-09 | SC 13D | SC 13D | View Document |
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