SEC EDGAR filings, ownership reports, and insider transactions for Serguei Melnik.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SCHEDULE 13D | Open Document | Open Filing | 13 Mar 2025 | |||
| 4 | Open Document | Open Filing | 29 Nov 2024 | 20 Mar 2024 | 001-40854 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 13 Feb 2024 | ||
| 4 | Open Document | Open Filing | 08 Mar 2023 | 06 Mar 2023 | 001-40854 | |
| 5/A | Open Document | Open Filing | 25 Oct 2022 | 31 Jan 2022 | 001-40854 | |
| 5 | Open Document | Open Filing | 05 Jul 2022 | 31 Jan 2022 | 001-40854 | |
| 4/A | Open Document | Open Filing | 25 Feb 2022 | 24 Feb 2022 | 001-40854 | |
| 4/A | Open Document | Open Filing | 24 Feb 2022 | 24 Feb 2022 | 001-40854 | |
| 4 | Open Document | Open Filing | 24 Feb 2022 | 24 Feb 2022 | 001-40854 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Feb 2022 | 06 Feb 2022 | 001-40854 |
| 4 | Open Document | Open Filing | 03 Jun 2019 | 30 May 2019 | 000-55644 | |
| 5 | Open Document | Open Filing | 22 Apr 2019 | 31 Jan 2018 | 000-55644 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Aug 2017 | 19 Aug 2017 | 000-55644 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 May 2017 | 31 Jan 2017 | 000-55644 |