ASP Isotopes Inc. SEC filings ASPI
ASP Isotopes Inc. has 406 filings in SEC EDGAR's recent list, going back to Apr 21, 2022. Its latest annual report, Form 10-K, was filed on Apr 10, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 26, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 21, 2026 | Oct 16, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Oct 14, 2026 |
| 144 | Notice of proposed sale | Oct 16, 2026 | — |
| 144 | Notice of proposed sale | Oct 14, 2026 | — |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 1, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Oct 8, 2026 | — |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 28, 2026 |
| 144 | Notice of proposed sale | Sep 25, 2026 | — |
| 4 | Insider transaction | Sep 10, 2026 | Sep 8, 2026 |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 29, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 30, 2026 |
| 144 | Notice of proposed sale | Jun 30, 2026 | — |
| 144 | Notice of proposed sale | Jun 29, 2026 | — |
| 144 | Notice of proposed sale | Jun 29, 2026 | — |
| 4 | Insider transaction | Jun 10, 2026 | Jun 8, 2026 |
| 144 | Notice of proposed sale | Jun 8, 2026 | — |
| 4 | Insider transaction | Jun 3, 2026 | May 28, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | May 28, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | May 28, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | May 28, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 27, 2026 | — |
| 4 | Insider transaction | Apr 17, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 17, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Apr 17, 2026 | Nov 12, 2025 |
| 144 | Notice of proposed sale | Apr 17, 2026 | — |
| 144 | Notice of proposed sale | Apr 16, 2026 | — |
| 144 | Notice of proposed sale | Apr 15, 2026 | — |
| 4 | Insider transaction | Apr 13, 2026 | Apr 13, 2026 |
| 144 | Notice of proposed sale | Apr 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 6, 2026 | Mar 6, 2026 |
| 144 | Notice of proposed sale | Mar 6, 2026 | — |
| 4 | Insider transaction | Mar 2, 2026 | Mar 2, 2026 |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 9, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 30, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 23, 2026 | — |
| 4 | Insider transaction | Dec 29, 2025 | Dec 18, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 18, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 18, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 18, 2025 |
| 4 | Insider transaction | Dec 22, 2025 | Dec 18, 2025 |
| 144 | Notice of proposed sale | Dec 18, 2025 | — |
| 4 | Insider transaction | Dec 11, 2025 | Dec 8, 2025 |
| 144 | Notice of proposed sale | Dec 11, 2025 | — |
| 4 | Insider transaction | Dec 3, 2025 | Dec 1, 2025 |
| 4 | Insider transaction | Nov 28, 2025 | Sep 6, 2025 |
| 3 | Initial insider ownership | Nov 28, 2025 | Sep 6, 2025 |
| 4 | Insider transaction | Nov 28, 2025 | Aug 1, 2025 |
| 3 | Initial insider ownership | Nov 28, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Nov 28, 2025 | Nov 25, 2025 |
| 4 | Insider transaction | Nov 28, 2025 | Nov 17, 2025 |
| 144 | Notice of proposed sale | Nov 25, 2025 | — |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Oct 16, 2025 | Oct 14, 2025 |
| 144 | Notice of proposed sale | Oct 16, 2025 | — |
| 4 | Insider transaction | Oct 3, 2025 | Sep 14, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Sep 30, 2025 |
| 144 | Notice of proposed sale | Sep 30, 2025 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Sep 22, 2025 | — |
| 144 | Notice of proposed sale | Sep 12, 2025 | — |
| 4 | Insider transaction | Sep 10, 2025 | Sep 8, 2025 |
| 4 | Insider transaction | Sep 10, 2025 | Sep 8, 2025 |
| 144 | Notice of proposed sale | Sep 8, 2025 | — |
| 144 | Notice of proposed sale | Sep 8, 2025 | — |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 144 | Notice of proposed sale | Aug 29, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Apr 17, 2025 | Apr 15, 2025 |
| 4 | Insider transaction | Apr 17, 2025 | Apr 15, 2025 |
| 144 | Notice of proposed sale | Apr 15, 2025 | — |
| 144 | Notice of proposed sale | Apr 15, 2025 | — |
| 4 | Insider transaction | Apr 15, 2025 | Apr 14, 2025 |
| 4 | Insider transaction | Apr 15, 2025 | Apr 14, 2025 |
| 4 | Insider transaction | Apr 15, 2025 | Apr 14, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 11, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 18, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 18, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| 5 | Annual insider ownership | Feb 14, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 14, 2025 | Dec 31, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 4, 2025 | — |
| 4 | Insider transaction | Dec 11, 2024 | Dec 9, 2024 |
| 4 | Insider transaction | Nov 21, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 21, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 21, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 21, 2024 | Nov 20, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 7, 2024 | — |
| 4 | Insider transaction | Oct 16, 2024 | Oct 11, 2024 |
| 3 | Initial insider ownership | Oct 16, 2024 | Oct 10, 2024 |
| 4 | Insider transaction | Sep 10, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Sep 10, 2024 | Sep 6, 2024 |
| 4 | Insider transaction | Aug 14, 2024 | Aug 13, 2024 |
| 4 | Insider transaction | Aug 14, 2024 | Aug 13, 2024 |
| 4 | Insider transaction | Aug 5, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Jul 15, 2024 | Jul 15, 2024 |
| 4 | Insider transaction | Jul 15, 2024 | Jul 15, 2024 |
| 4 | Insider transaction | Jul 10, 2024 | Jul 8, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | May 1, 2024 | Apr 29, 2024 |
| 4 | Insider transaction | Apr 30, 2024 | Apr 26, 2024 |
| 4 | Insider transaction | Apr 29, 2024 | Apr 25, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Jan 14, 2024 |
| 3 | Initial insider ownership | Feb 26, 2024 | Jan 14, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Oct 23, 2023 |
| 3 | Initial insider ownership | Feb 26, 2024 | Oct 23, 2023 |
| SC 13G | Ownership over 5% (passive) | Nov 3, 2023 | — |
| 4 | Insider transaction | Oct 30, 2023 | Aug 10, 2023 |
| 4 | Insider transaction | Oct 30, 2023 | Oct 26, 2023 |
| 4 | Insider transaction | Oct 30, 2023 | Oct 26, 2023 |
| 3 | Initial insider ownership | Oct 19, 2023 | Oct 9, 2023 |
| 4 | Insider transaction | Jul 3, 2023 | Jun 29, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 16, 2023 | May 10, 2023 |
| 4 | Insider transaction | Apr 11, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Mar 8, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 8, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Feb 22, 2023 | Dec 30, 2022 |
| 4 | Insider transaction | Feb 17, 2023 | Dec 30, 2022 |
| 4 | Insider transaction | Feb 17, 2023 | Dec 30, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 15, 2022 | Nov 15, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
| 3 | Initial insider ownership | Nov 14, 2022 | Nov 9, 2022 |
Showing 153 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Miscellaneous Chemical Products (SIC 2890)
- Listed as
- ASPI (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Dallas, TX
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1921865
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.