Company facts
- Industry
- Hazardous Waste Management
- Headquarters
- New York, New York
- Most recent report
- 8-K, filed Sep 11, 2026
- Incorporated
- Delaware
- Filings on record
- 209 filings
- On EDGAR
- CIK 1882198
- Fiscal year ends
- December
- Filer status
- Emerging growth company
Financials 8 of 20
News 8 of 67
Prospectuses and Registrations 8 of 15
- 424B3 Prospectus supplement for an offering Aug 12, 2026
- S-4/A Registration statement for a merger or exchange, amended Aug 11, 2026
- S-4/A Registration statement for a merger or exchange, amended Aug 10, 2026
- S-4/A Registration statement for a merger or exchange, amended Jul 27, 2026
- S-4/A Registration statement for a merger or exchange, amended Jul 10, 2026
- S-4/A Registration statement for a merger or exchange, amended Apr 30, 2026
- S-4/A Registration statement for a merger or exchange, amended Mar 24, 2026
- S-4/A Registration statement for a merger or exchange, amended Jan 26, 2026
Proxies 8 of 18
- DEF 14A Proxy statement for a shareholder vote May 22, 2026
- PRE 14A Preliminary proxy statement May 8, 2026
- DEF 14A Proxy statement for a shareholder vote Dec 12, 2025
- DEF 14A Proxy statement for a shareholder vote Aug 28, 2025
- PRE 14A Preliminary proxy statement Aug 13, 2025
- DEFA14A Extra proxy material Dec 5, 2024
- DEF 14A Proxy statement for a shareholder vote Nov 21, 2024
- PRE 14A Preliminary proxy statement Nov 4, 2024
Ownership 8 of 29
- SC 13G/A Large holder reported a passive stake, amended Nov 14, 2024
- 3 Insider reported their initial holding Nov 5, 2024
- 3 Insider reported their initial holding Oct 15, 2024
- SC 13G/A Large holder reported a passive stake, amended Feb 12, 2024
- SC 13G/A Large holder reported a passive stake, amended Feb 7, 2024
- 4 Insider reported a trade Jun 23, 2023
- SC 13G/A Large holder reported a passive stake, amended Feb 14, 2023
- SC 13G/A Large holder reported a passive stake, amended Feb 14, 2023
Other 8 of 60
- EFFECT Notice that a registration became effective Aug 12, 2026
- 425 Apr 23, 2026
- 425 Mar 25, 2026
- 425 Jan 30, 2026
- NT 10-Q Notice that a quarterly report will be late Nov 13, 2025
- NT 10-Q Notice that a quarterly report will be late Aug 14, 2025
- 425 May 19, 2025
- NT 10-Q Notice that a quarterly report will be late May 15, 2025
Everything here comes from Athena Technology Acquisition Corp. II's own filings on SEC EDGAR. The filing list is rechecked every hour.