OPAL Fuels Inc. SEC filings OPAL
OPAL Fuels Inc. has 489 filings in SEC EDGAR's recent list, going back to Feb 4, 2021. Its latest annual report, Form ARS, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 10, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 21, 2026 (officer or director change, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 1, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 20, 2026 | May 18, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 7, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Mar 31, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 10, 2026 | — |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 8, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 3, 2025 | — |
| 4 | Insider transaction | Nov 3, 2025 | Nov 1, 2025 |
| 3 | Initial insider ownership | Nov 3, 2025 | Nov 1, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 7, 2025 | — |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 3 | Initial insider ownership | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 7, 2025 | — |
| 4 | Insider transaction | Jun 16, 2025 | Jun 11, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 23, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 9, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 23, 2025 | — |
| 4 | Insider transaction | Apr 23, 2025 | Apr 22, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 10, 2025 | Apr 8, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 21, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 7, 2025 | — |
| 3 | Initial insider ownership | Feb 3, 2025 | Feb 3, 2025 |
| 3 | Initial insider ownership | Dec 9, 2024 | Dec 2, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 4 | Insider transaction | Jul 1, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | May 22, 2024 | May 20, 2024 |
| 4 | Insider transaction | May 22, 2024 | May 21, 2024 |
| 144 | Notice of proposed sale | May 21, 2024 | — |
| 4 | Insider transaction | May 20, 2024 | May 16, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| 4 | Insider transaction | Apr 2, 2024 | Mar 31, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 15, 2024 | — |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| 4 | Insider transaction | Mar 14, 2024 | Mar 12, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 5, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 19, 2023 | — |
| 4 | Insider transaction | Dec 19, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 14, 2023 | Dec 13, 2023 |
| 4 | Insider transaction | Dec 13, 2023 | Dec 12, 2023 |
| 4 | Insider transaction | Dec 4, 2023 | Nov 30, 2023 |
| 4 | Insider transaction | Dec 1, 2023 | Nov 28, 2023 |
| 3 | Initial insider ownership | Nov 22, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Oct 26, 2023 | Oct 25, 2023 |
| 4 | Insider transaction | Oct 19, 2023 | Oct 17, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Oct 5, 2023 | Oct 3, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 28, 2023 |
| 4 | Insider transaction | Jun 29, 2023 | Jun 28, 2023 |
| 3 | Initial insider ownership | Jun 29, 2023 | Jun 28, 2023 |
| 4 | Insider transaction | Jun 12, 2023 | Jun 8, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | May 23, 2023 | May 19, 2023 |
| 4 | Insider transaction | May 22, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 19, 2023 | May 18, 2023 |
| 4 | Insider transaction | May 2, 2023 | Apr 28, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | May 1, 2023 | — |
| 4 | Insider transaction | May 1, 2023 | Apr 27, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Apr 11, 2023 | — |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 4, 2023 | Mar 31, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 21, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| 4 | Insider transaction | Feb 6, 2023 | Feb 2, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Jan 30, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 1, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jan 30, 2023 | — |
| 4 | Insider transaction | Jan 27, 2023 | Jan 26, 2023 |
| 4 | Insider transaction | Jan 27, 2023 | Oct 4, 2022 |
| 4 | Insider transaction | Jan 25, 2023 | Jan 23, 2023 |
| 4 | Insider transaction | Jan 23, 2023 | Jan 19, 2023 |
| 4 | Insider transaction | Jan 18, 2023 | Jan 17, 2023 |
| 4 | Insider transaction | Dec 23, 2022 | Dec 22, 2022 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 23, 2022 | — |
| 4 | Insider transaction | Dec 19, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Dec 16, 2022 | Dec 14, 2022 |
| 4 | Insider transaction | Dec 16, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Dec 12, 2022 | Dec 8, 2022 |
| 4 | Insider transaction | Dec 5, 2022 | Dec 1, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Aug 31, 2022 | Aug 29, 2022 |
| 4 | Insider transaction | Aug 29, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 25, 2022 | Aug 23, 2022 |
| 4 | Insider transaction | Aug 5, 2022 | Aug 4, 2022 |
| 3 | Initial insider ownership | Aug 1, 2022 | Jul 21, 2022 |
| SC 13D | Ownership over 5% (active) | Aug 1, 2022 | — |
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
- Gas & Other Services Combined (SIC 4932)
- Listed as
- OPAL (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Boston, MA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1842279
- Former names
- ArcLight Clean Transition Corp. II (until Jul 21, 2022)
Other Gas & Other Services Combined companies
- Sempra SRE
- Ugi Corp /PA/ UGI
- Montauk Renewables, Inc. MNTK
- Clean Energy Fuels Corp. CLNE
Source: SEC EDGAR filings. This is company-reported data, not investment advice.