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 |
|---|---|---|---|
| 6-K | Current report (foreign issuer) | Oct 28, 2026 | Oct 28, 2026 |
| 6-K | Current report (foreign issuer) | Oct 22, 2026 | Oct 22, 2026 |
| 6-K | Current report (foreign issuer) | Oct 14, 2026 | Oct 14, 2026 |
| 6-K | Current report (foreign issuer) | Oct 13, 2026 | Jun 30, 2026 |
| 20-F/A | Amended annual report (foreign issuer) | Oct 6, 2026 | Dec 31, 2025 |
| 6-K/A | Filing | Oct 6, 2026 | Sep 30, 2026 |
| 6-K | Current report (foreign issuer) | Oct 2, 2026 | Sep 30, 2026 |
| 6-K | Current report (foreign issuer) | Sep 25, 2026 | Sep 25, 2026 |
| 6-K | Current report (foreign issuer) | Sep 25, 2026 | Sep 25, 2026 |
| 424B3 | Prospectus | Sep 23, 2026 | — |
| EFFECT | Filing | Sep 22, 2026 | — |
| 6-K | Current report (foreign issuer) | Sep 15, 2026 | Sep 15, 2026 |
| F-3 | Shelf registration (foreign issuer) | Sep 11, 2026 | — |
| 6-K | Current report (foreign issuer) | Sep 10, 2026 | Sep 10, 2026 |
| 6-K | Current report (foreign issuer) | Sep 4, 2026 | Sep 4, 2026 |
| 6-K | Current report (foreign issuer) | Aug 20, 2026 | Aug 20, 2026 |
| D | Filing | Aug 13, 2026 | — |
| 6-K | Current report (foreign issuer) | Aug 12, 2026 | Aug 12, 2026 |
| 6-K/A | Filing | Aug 11, 2026 | Aug 11, 2026 |
| 6-K | Current report (foreign issuer) | Aug 7, 2026 | Aug 7, 2026 |
| 6-K | Current report (foreign issuer) | Jul 29, 2026 | Jul 29, 2026 |
| 424B5 | Prospectus supplement | Jul 29, 2026 | — |
| 6-K/A | Filing | Jul 29, 2026 | Jul 29, 2026 |
| 6-K | Current report (foreign issuer) | Jul 22, 2026 | Jul 22, 2026 |
| 6-K | Current report (foreign issuer) | Jun 10, 2026 | Jun 10, 2026 |
| 6-K | Current report (foreign issuer) | Jun 9, 2026 | Jun 9, 2026 |
| 6-K | Current report (foreign issuer) | Jun 4, 2026 | Jun 4, 2026 |
| 6-K | Current report (foreign issuer) | May 27, 2026 | May 27, 2026 |
| 6-K | Current report (foreign issuer) | May 21, 2026 | May 21, 2026 |
| 6-K | Current report (foreign issuer) | May 18, 2026 | May 18, 2026 |
| 6-K | Current report (foreign issuer) | May 15, 2026 | May 15, 2026 |
| 6-K | Current report (foreign issuer) | May 12, 2026 | May 12, 2026 |
| 6-K | Current report (foreign issuer) | May 11, 2026 | May 11, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2026 | — |
| 6-K | Current report (foreign issuer) | May 7, 2026 | May 7, 2026 |
| 20-F | Annual report (foreign issuer) | May 7, 2026 | Dec 31, 2025 |
| D | Filing | May 6, 2026 | — |
| NT 20-F | Filing | Apr 30, 2026 | Dec 31, 2025 |
| 6-K | Current report (foreign issuer) | Apr 23, 2026 | Apr 23, 2026 |
| 6-K | Current report (foreign issuer) | Apr 20, 2026 | Apr 20, 2026 |
| 6-K | Current report (foreign issuer) | Apr 9, 2026 | Apr 9, 2026 |
| 6-K | Current report (foreign issuer) | Apr 7, 2026 | Apr 7, 2026 |
| 6-K | Current report (foreign issuer) | Apr 2, 2026 | Apr 2, 2026 |
| 6-K/A | Filing | Mar 30, 2026 | Mar 27, 2026 |
| 6-K | Current report (foreign issuer) | Mar 25, 2026 | Mar 25, 2026 |
| 424B3 | Prospectus | Mar 24, 2026 | — |
| 4 | Insider transaction | Mar 24, 2026 | Feb 23, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 24, 2026 | — |
| EFFECT | Filing | Mar 23, 2026 | — |
| 6-K | Current report (foreign issuer) | Mar 23, 2026 | Mar 23, 2026 |
| CORRESP | Letter to the SEC | Mar 19, 2026 | — |
| UPLOAD | Letter from the SEC | Mar 19, 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 |
| F-3 | Shelf registration (foreign issuer) | Mar 18, 2026 | — |
| 6-K | Current report (foreign issuer) | Mar 17, 2026 | Mar 17, 2026 |
| 6-K | Current report (foreign issuer) | Mar 11, 2026 | Mar 11, 2026 |
| 6-K | Current report (foreign issuer) | Mar 5, 2026 | Mar 5, 2026 |
| D | Filing | Feb 26, 2026 | — |
| 6-K/A | Filing | Feb 18, 2026 | Feb 18, 2026 |
| 6-K | Current report (foreign issuer) | Feb 18, 2026 | Feb 18, 2026 |
| 6-K | Current report (foreign issuer) | Feb 18, 2026 | Feb 18, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 13, 2026 | — |
| 424B3 | Prospectus | Feb 12, 2026 | — |
| EFFECT | Filing | Feb 11, 2026 | — |
| CORRESP | Letter to the SEC | Feb 9, 2026 | — |
| UPLOAD | Letter from the SEC | Feb 9, 2026 | — |
| F-3 | Shelf registration (foreign issuer) | Feb 6, 2026 | — |
| 15-12G | Deregistration | Jan 30, 2026 | — |
| 6-K | Current report (foreign issuer) | Jan 8, 2026 | Dec 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 30, 2025 | — |
| 6-K | Current report (foreign issuer) | Dec 29, 2025 | Dec 29, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Dec 18, 2025 | — |
| EFFECT | Filing | Dec 12, 2025 | — |
| 25-NSE | Delisting notice | Dec 10, 2025 | — |
| CORRESP | Letter to the SEC | Dec 10, 2025 | — |
| 6-K | Current report (foreign issuer) | Dec 5, 2025 | Dec 5, 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 |
| 6-K | Current report (foreign issuer) | Dec 3, 2025 | Dec 3, 2025 |
| 6-K | Current report (foreign issuer) | Nov 28, 2025 | Nov 28, 2025 |
| 6-K | Current report (foreign issuer) | Nov 25, 2025 | Nov 25, 2025 |
| F-3/A | Filing | Nov 21, 2025 | — |
| S-8 | Employee stock plan registration | Nov 21, 2025 | — |
| 6-K | Current report (foreign issuer) | Nov 7, 2025 | Nov 6, 2025 |
| 6-K | Current report (foreign issuer) | Nov 4, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Oct 29, 2025 | Oct 28, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 29, 2025 | — |
| 6-K | Current report (foreign issuer) | Oct 16, 2025 | Oct 16, 2025 |
| 6-K | Current report (foreign issuer) | Oct 15, 2025 | Oct 15, 2025 |
| 6-K | Current report (foreign issuer) | Oct 14, 2025 | Oct 14, 2025 |
| 6-K | Current report (foreign issuer) | Oct 9, 2025 | Oct 9, 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 |
| 6-K | Current report (foreign issuer) | Sep 25, 2025 | Sep 25, 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 |
| 6-K | Current report (foreign issuer) | Sep 17, 2025 | Sep 17, 2025 |
| 6-K | Current report (foreign issuer) | Sep 15, 2025 | Sep 15, 2025 |
| 6-K | Current report (foreign issuer) | Sep 10, 2025 | Sep 10, 2025 |
| 6-K/A | Filing | Sep 10, 2025 | Sep 10, 2025 |
| 6-K | Current report (foreign issuer) | Sep 10, 2025 | Jun 30, 2025 |
| 6-K | Current report (foreign issuer) | Sep 8, 2025 | Sep 8, 2025 |
| 6-K | Current report (foreign issuer) | Sep 2, 2025 | Sep 2, 2025 |
| 6-K | Current report (foreign issuer) | Aug 27, 2025 | Aug 27, 2025 |
| 424B3 | Prospectus | Aug 15, 2025 | — |
| EFFECT | Filing | Aug 14, 2025 | — |
| CORRESP | Letter to the SEC | Aug 12, 2025 | — |
| UPLOAD | Letter from the SEC | Aug 12, 2025 | — |
| 6-K | Current report (foreign issuer) | Aug 11, 2025 | Aug 11, 2025 |
| F-3 | Shelf registration (foreign issuer) | Aug 8, 2025 | — |
| 6-K | Current report (foreign issuer) | Aug 6, 2025 | Aug 6, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 5, 2025 | — |
| 4 | Insider transaction | Aug 5, 2025 | Aug 1, 2025 |
| 424B3 | Prospectus | Aug 5, 2025 | — |
| 6-K | Current report (foreign issuer) | Aug 5, 2025 | Aug 5, 2025 |
| 6-K | Current report (foreign issuer) | Jul 30, 2025 | Jul 30, 2025 |
| 6-K | Current report (foreign issuer) | Jul 28, 2025 | Jul 28, 2025 |
| 424B5 | Prospectus supplement | Jul 28, 2025 | — |
| D | Filing | Jul 25, 2025 | — |
| 4 | Insider transaction | Jul 25, 2025 | Jul 23, 2025 |
| 6-K | Current report (foreign issuer) | Jul 25, 2025 | Jul 25, 2025 |
| D | Filing | Jul 24, 2025 | — |
| 6-K | Current report (foreign issuer) | Jul 23, 2025 | Jul 23, 2025 |
| 6-K | Current report (foreign issuer) | Jul 23, 2025 | Jul 23, 2025 |
| 6-K | Current report (foreign issuer) | Jul 23, 2025 | Jul 23, 2025 |
| 6-K | Current report (foreign issuer) | Jul 22, 2025 | Jul 22, 2025 |
| 4 | Insider transaction | Jul 17, 2025 | Jul 15, 2025 |
| 6-K | Current report (foreign issuer) | Jul 17, 2025 | Jul 17, 2025 |
| 6-K | Current report (foreign issuer) | Jul 16, 2025 | Jul 16, 2025 |
| 6-K | Current report (foreign issuer) | Jul 10, 2025 | Jul 10, 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 |
| 6-K | Current report (foreign issuer) | Jun 25, 2025 | Jun 25, 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 | — |
| 424B3 | Prospectus | Jun 13, 2025 | — |
| 424B3 | Prospectus | Jun 13, 2025 | — |
| EFFECT | Filing | Jun 12, 2025 | — |
| EFFECT | Filing | Jun 12, 2025 | — |
| CORRESP | Letter to the SEC | Jun 10, 2025 | — |
| CORRESP | Letter to the SEC | Jun 10, 2025 | — |
| 6-K | Current report (foreign issuer) | Jun 4, 2025 | Jun 4, 2025 |
| 6-K | Current report (foreign issuer) | May 29, 2025 | May 29, 2025 |
| 6-K | Current report (foreign issuer) | May 27, 2025 | May 27, 2025 |
| CORRESP | Letter to the SEC | May 23, 2025 | — |
| CORRESP | Letter to the SEC | May 23, 2025 | — |
| F-3/A | Amendment no. 1 to form f-3 | May 23, 2025 | — |
| F-3/A | Amendment no. 1 to form f-3 | May 23, 2025 | — |
| 6-K | Current report (foreign issuer) | May 22, 2025 | May 22, 2025 |
| 6-K | Current report (foreign issuer) | May 16, 2025 | May 16, 2025 |
| 424B5 | Prospectus supplement | May 16, 2025 | — |
| F-3 | Shelf registration (foreign issuer) | May 13, 2025 | — |
| 6-K/A | Amendment no. 2 to form 6-k | May 12, 2025 | May 12, 2025 |
| 20-F | Annual report (foreign issuer) | May 9, 2025 | Dec 31, 2024 |
| NT 20-F | Notification of late filing | May 1, 2025 | Dec 31, 2024 |
| UPLOAD | Letter from the SEC | Apr 9, 2025 | — |
| UPLOAD | Letter from the SEC | Apr 9, 2025 | — |
| 6-K | Current report (foreign issuer) | Apr 9, 2025 | Apr 9, 2025 |
| F-3 | Shelf registration (foreign issuer) | Mar 28, 2025 | — |
| F-3 | Shelf registration (foreign issuer) | Mar 28, 2025 | — |
| 424B3 | Prospectus | Mar 12, 2025 | — |
| 6-K/A | Amendment no. 1 to form 6-k | Mar 10, 2025 | Jun 30, 2024 |
| 6-K | Current report (foreign issuer) | Mar 4, 2025 | Mar 4, 2025 |
| 6-K | Current report (foreign issuer) | Mar 3, 2025 | Mar 3, 2025 |
| 6-K | Current report (foreign issuer) | Feb 27, 2025 | Feb 27, 2025 |
| 6-K | Current report (foreign issuer) | Feb 24, 2025 | Feb 24, 2025 |
| 6-K | Current report (foreign issuer) | Feb 6, 2025 | Feb 6, 2025 |
| 6-K | Current report (foreign issuer) | Jan 31, 2025 | Jan 31, 2025 |
| 6-K | Current report (foreign issuer) | Jan 27, 2025 | Jan 27, 2025 |
| D | Filing | Jan 22, 2025 | — |
| D | Filing | Jan 21, 2025 | — |
| 6-K | Current report (foreign issuer) | Jan 14, 2025 | Jan 14, 2025 |
| 6-K | Current report (foreign issuer) | Jan 13, 2025 | Jan 13, 2025 |
| 6-K | Current report (foreign issuer) | Jan 13, 2025 | Jan 13, 2025 |
| 6-K | Current report (foreign issuer) | Jan 13, 2025 | Jan 13, 2025 |
Showing 200 filings, the most recent 200. 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.