Fusion Fuel Green PLC SEC filings HTOO
Fusion Fuel Green PLC has 354 filings in SEC EDGAR's recent list, going back to Aug 5, 2020. Its latest annual report, Form 20-F, was filed on May 7, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Oct 28, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2026 | — |
| 4 | Insider transaction | Mar 24, 2026 | Feb 23, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 24, 2026 | — |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| 3/A | Filing | Mar 18, 2026 | Mar 18, 2026 |
| 3 | Initial insider ownership | Mar 18, 2026 | Mar 18, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 30, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 18, 2025 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Dec 4, 2025 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Dec 4, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 4, 2025 | — |
| 4 | Insider transaction | Dec 4, 2025 | Dec 2, 2025 |
| 4 | Insider transaction | Oct 29, 2025 | Oct 28, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 29, 2025 | — |
| 4 | Insider transaction | Oct 7, 2025 | Oct 3, 2025 |
| 4 | Insider transaction | Oct 7, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Sep 29, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Sep 29, 2025 | — |
| 4 | Insider transaction | Sep 29, 2025 | Sep 25, 2025 |
| 4 | Insider transaction | Sep 26, 2025 | Sep 23, 2025 |
| 4 | Insider transaction | Sep 24, 2025 | Sep 19, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 18, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 15, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 17, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 16, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 5, 2025 | — |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Jul 25, 2025 | Jul 23, 2025 |
| 4 | Insider transaction | Jul 17, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Jul 8, 2025 | Jul 3, 2025 |
| 4 | Insider transaction | Jul 8, 2025 | Jul 2, 2025 |
| 4 | Insider transaction | Jul 3, 2025 | Jul 1, 2025 |
| 144 | Notice of proposed sale | Jul 3, 2025 | — |
| 4 | Insider transaction | Jul 2, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Jul 2, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 24, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 19, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 18, 2025 |
| 144 | Notice of proposed sale | Jun 25, 2025 | — |
| 144 | Notice of proposed sale | Jun 17, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 11, 2024 | — |
| SC 13D | Ownership over 5% (active) | Dec 6, 2024 | — |
| 3 | Initial insider ownership | Dec 6, 2024 | Nov 26, 2024 |
| 3 | Initial insider ownership | Dec 5, 2024 | Nov 26, 2024 |
| SC 13G | Ownership over 5% (passive) | Dec 3, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 18, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 6, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Mar 27, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Dec 18, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 3, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 5, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 7, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 28, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 21, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 30, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 1, 2021 | — |
| SC 13D | Ownership over 5% (active) | Sep 29, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 27, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 12, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Jan 11, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Dec 31, 2020 | — |
| SC 13D | Ownership over 5% (active) | Dec 22, 2020 | — |
| SC 13D | Ownership over 5% (active) | Dec 22, 2020 | — |
| SC 13D | Ownership over 5% (active) | Dec 22, 2020 | — |
| SC 13D | Ownership over 5% (active) | Dec 22, 2020 | — |
| SC 13D | Ownership over 5% (active) | Dec 21, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2020 | — |
Showing 79 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
- Misc Industrial & Commercial Machinery & Equipment (SIC 3590)
- Listed as
- HTOO (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Ireland
- Headquarters
- Dublin
- SEC filer status
- Non-accelerated filer, Emerging growth company
- SEC CIK
- 1819794
- Former names
- Fusion Fuel Green Ltd (until Oct 2, 2020)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.