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 |
|---|---|---|---|
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 21, 2026 | Oct 19, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 20, 2026 | Oct 20, 2026 |
| EFFECT | Filing | Sep 17, 2026 | — |
| S-3/A | Filing | Sep 14, 2026 | — |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| S-3 | Shelf registration | Sep 4, 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 | — |
| 10-Q | Quarterly report | Aug 10, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2026 | Aug 10, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 28, 2026 | Jul 27, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 22, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Jun 4, 2026 | Jun 2, 2026 |
| 8-K |
Current report
Other events
|
Jun 3, 2026 | Jun 3, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 20, 2026 |
| 8-K |
Current report
Change to shareholder rights
|
May 20, 2026 | May 18, 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 |
| 8-K |
Current report
Results of operations
|
May 11, 2026 | May 11, 2026 |
| 10-Q | Quarterly report | May 11, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 28, 2026 | Apr 28, 2026 |
| DEFA14A | Additional proxy material | Apr 23, 2026 | — |
| ARS | Annual report to shareholders | Apr 23, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 23, 2026 | Jun 17, 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 |
| 10-K | Annual report | Mar 16, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 16, 2026 | Mar 16, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 10, 2026 | — |
| 4 | Insider transaction | Mar 9, 2026 | Mar 6, 2026 |
| 8-K |
Current report
New debt, Unregistered share sale, Regulation FD disclosure
|
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 | — |
| 10-Q | Quarterly report | Nov 7, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2025 | Nov 6, 2025 |
| 4 | Insider transaction | Nov 3, 2025 | Nov 1, 2025 |
| 3 | Initial insider ownership | Nov 3, 2025 | Nov 1, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 28, 2025 | Oct 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 27, 2025 | Oct 22, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 29, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 7, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2025 | Jun 18, 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 | — |
| NT 10-Q | Filing | May 13, 2025 | Mar 31, 2025 |
| 10-Q | Quarterly report | May 13, 2025 | Mar 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 9, 2025 | — |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| ARS | Annual report to shareholders | Apr 28, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 25, 2025 | — |
| DEF 14A | Proxy statement | Apr 25, 2025 | Jun 18, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 25, 2025 | Apr 21, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 24, 2025 | Apr 24, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 23, 2025 | — |
| 4 | Insider transaction | Apr 23, 2025 | Apr 22, 2025 |
| 8-K |
Current report
Other events
|
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 |
| 8-K |
Current report
Material agreement
|
Mar 28, 2025 | Mar 28, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 21, 2025 | — |
| 10-K | Annual report | Mar 17, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 14, 2025 | Mar 13, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 5, 2025 | Mar 3, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 28, 2025 | Feb 27, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 7, 2025 | — |
| 3 | Initial insider ownership | Feb 3, 2025 | Feb 3, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
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 | — |
| 10-Q | Quarterly report | Nov 12, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 8-K |
Current report
Material agreement
|
Sep 19, 2024 | Sep 13, 2024 |
| 10-Q/A | Amended quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 7, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 25, 2024 | Jul 25, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 1, 2024 | Jun 25, 2024 |
| 4 | Insider transaction | Jul 1, 2024 | Jun 28, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2024 | Jun 18, 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 |
| 10-Q | Quarterly report | May 10, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2024 | Apr 25, 2024 |
| DEFA14A | Additional proxy material | Apr 22, 2024 | — |
| ARS | Annual report to shareholders | Apr 22, 2024 | Dec 31, 2023 |
| DEF 14A | Proxy statement | Apr 22, 2024 | Dec 31, 2023 |
| 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 |
| 8-K |
Current report
Material agreement
|
Mar 28, 2024 | Mar 27, 2024 |
| 10-K | Annual report | Mar 15, 2024 | Dec 31, 2023 |
| 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 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2024 | Mar 13, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 11, 2024 | Mar 5, 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 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 22, 2023 | Nov 22, 2023 |
| 3 | Initial insider ownership | Nov 22, 2023 | Nov 15, 2023 |
| 8-K |
Current report
Material agreement
|
Nov 17, 2023 | Nov 17, 2023 |
| 424B3 | Prospectus | Nov 17, 2023 | — |
| 8-K/A |
Amended current report
Results of operations
|
Nov 15, 2023 | Nov 13, 2023 |
| 10-Q | Quarterly report | Nov 14, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2023 | Nov 13, 2023 |
| UPLOAD | Letter from the SEC | Nov 2, 2023 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 31, 2023 | Oct 30, 2023 |
| 4 | Insider transaction | Oct 26, 2023 | Oct 25, 2023 |
| 8-K |
Current report
Material agreement
|
Oct 26, 2023 | Oct 20, 2023 |
| 8-K/A |
Amended current report
Officer or director change
|
Oct 20, 2023 | Oct 5, 2023 |
| 4 | Insider transaction | Oct 19, 2023 | Oct 17, 2023 |
| CORRESP | Letter to the SEC | Oct 13, 2023 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 12, 2023 | Oct 5, 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 |
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.