NextDecade Corp SEC filings NEXT
NextDecade Corp has 842 filings in SEC EDGAR's recent list, going back to Jul 9, 2014. 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 Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 1, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 144 | Notice of proposed sale | Nov 4, 2026 | — |
| 144 | Notice of proposed sale | Oct 21, 2026 | — |
| 4 | Insider transaction | Oct 19, 2026 | Oct 16, 2026 |
| 4 | Insider transaction | Oct 19, 2026 | Oct 16, 2026 |
| 4 | Insider transaction | Oct 19, 2026 | Oct 16, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Oct 13, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 11, 2026 | Sep 9, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Aug 31, 2026 |
| 4 | Insider transaction | Jul 13, 2026 | Jul 10, 2026 |
| 4 | Insider transaction | Jul 13, 2026 | Jul 10, 2026 |
| 3 | Initial insider ownership | Jul 10, 2026 | Jul 6, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 15, 2026 |
| 3 | Initial insider ownership | Jun 11, 2026 | Jun 3, 2026 |
| 3 | Initial insider ownership | Jun 11, 2026 | Jun 3, 2026 |
| 3 | Initial insider ownership | Jun 11, 2026 | Jun 3, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Jun 10, 2026 | — |
| 4 | Insider transaction | May 14, 2026 | May 13, 2026 |
| 4 | Insider transaction | Mar 25, 2026 | Mar 23, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 24, 2026 | — |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Feb 3, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Dec 15, 2025 | Dec 11, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 11, 2025 | — |
| 4 | Insider transaction | Dec 10, 2025 | Dec 8, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Dec 3, 2025 |
| 4 | Insider transaction | Dec 2, 2025 | Nov 28, 2025 |
| 4 | Insider transaction | Nov 26, 2025 | Nov 24, 2025 |
| 4 | Insider transaction | Nov 24, 2025 | Nov 20, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 20, 2025 | — |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 17, 2025 | Nov 13, 2025 |
| 4 | Insider transaction | Nov 13, 2025 | Nov 11, 2025 |
| 4 | Insider transaction | Oct 20, 2025 | Oct 16, 2025 |
| 4 | Insider transaction | Oct 20, 2025 | Oct 16, 2025 |
| 4 | Insider transaction | Oct 20, 2025 | Oct 16, 2025 |
| 4 | Insider transaction | Oct 20, 2025 | Oct 16, 2025 |
| 4 | Insider transaction | Oct 20, 2025 | Oct 16, 2025 |
| 4 | Insider transaction | Oct 16, 2025 | Oct 14, 2025 |
| 3 | Initial insider ownership | Oct 16, 2025 | Oct 7, 2025 |
| 4 | Insider transaction | Sep 25, 2025 | Sep 23, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 18, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 17, 2025 |
| 4 | Insider transaction | Sep 18, 2025 | Sep 16, 2025 |
| 4 | Insider transaction | Sep 16, 2025 | Sep 12, 2025 |
| 4 | Insider transaction | Sep 15, 2025 | Sep 12, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 4 | Insider transaction | Sep 8, 2025 | Sep 4, 2025 |
| 4 | Insider transaction | Sep 8, 2025 | Sep 4, 2025 |
| 4 | Insider transaction | Sep 8, 2025 | Sep 4, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 4 | Insider transaction | Sep 3, 2025 | Aug 29, 2025 |
| 3 | Initial insider ownership | Aug 11, 2025 | Jul 29, 2025 |
| 4 | Insider transaction | Aug 7, 2025 | Aug 5, 2025 |
| 4 | Insider transaction | Aug 7, 2025 | Aug 5, 2025 |
| 3 | Initial insider ownership | Aug 7, 2025 | Jul 29, 2025 |
| 3 | Initial insider ownership | Aug 7, 2025 | Jul 29, 2025 |
| 3 | Initial insider ownership | Aug 1, 2025 | Jul 22, 2025 |
| 4 | Insider transaction | Jul 24, 2025 | Jul 22, 2025 |
| 4 | Insider transaction | Jul 15, 2025 | Jul 11, 2025 |
| 4 | Insider transaction | Jul 15, 2025 | Jul 11, 2025 |
| 4 | Insider transaction | Jul 15, 2025 | Jul 11, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 13, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 29, 2025 | — |
| 3 | Initial insider ownership | Apr 4, 2025 | Mar 27, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| 4 | Insider transaction | Feb 4, 2025 | Jan 31, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 21, 2025 | — |
| 4 | Insider transaction | Nov 15, 2024 | Nov 13, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 3 | Initial insider ownership | Oct 25, 2024 | Oct 17, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 22, 2024 | — |
| 4 | Insider transaction | Sep 4, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Sep 4, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Sep 4, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Sep 4, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Sep 4, 2024 | Aug 30, 2024 |
| 4 | Insider transaction | Aug 6, 2024 | Aug 2, 2024 |
| 4 | Insider transaction | Aug 6, 2024 | Aug 2, 2024 |
| 4 | Insider transaction | Aug 6, 2024 | Aug 2, 2024 |
| 4 | Insider transaction | Aug 6, 2024 | Aug 2, 2024 |
| 3 | Initial insider ownership | Jul 31, 2024 | Jul 24, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 31, 2024 | — |
| 4 | Insider transaction | Jul 31, 2024 | Jul 29, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 29, 2024 | — |
| 4 | Insider transaction | Jul 29, 2024 | Jul 25, 2024 |
| 4 | Insider transaction | Jul 16, 2024 | Jul 12, 2024 |
| 4 | Insider transaction | Jul 16, 2024 | Jul 12, 2024 |
| 4 | Insider transaction | Jul 16, 2024 | Jul 12, 2024 |
| 4 | Insider transaction | Jul 16, 2024 | Jul 12, 2024 |
| 3 | Initial insider ownership | Jun 24, 2024 | Jun 13, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 17, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 17, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 24, 2024 | — |
| 4 | Insider transaction | May 24, 2024 | May 22, 2024 |
| 4 | Insider transaction | Mar 26, 2024 | Mar 22, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 26, 2024 | — |
| 4 | Insider transaction | Mar 26, 2024 | Mar 22, 2024 |
| 4 | Insider transaction | Feb 5, 2024 | Feb 2, 2024 |
| 4 | Insider transaction | Feb 2, 2024 | Jan 31, 2024 |
| 4 | Insider transaction | Feb 2, 2024 | Jan 31, 2024 |
| 4 | Insider transaction | Feb 2, 2024 | Jan 31, 2024 |
| 4 | Insider transaction | Feb 2, 2024 | Jan 31, 2024 |
| 3 | Initial insider ownership | Feb 1, 2024 | Jan 25, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 29, 2024 | — |
| 4 | Insider transaction | Nov 9, 2023 | Nov 1, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 3, 2023 | — |
| 4/A | Filing | Oct 10, 2023 | Oct 4, 2023 |
| 4/A | Filing | Oct 10, 2023 | Oct 4, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 6, 2023 | — |
| 4 | Insider transaction | Oct 6, 2023 | Oct 4, 2023 |
| 4 | Insider transaction | Oct 6, 2023 | Oct 4, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Sep 29, 2023 | Sep 27, 2023 |
| 4 | Insider transaction | Sep 29, 2023 | Sep 27, 2023 |
| 4 | Insider transaction | Sep 28, 2023 | Sep 26, 2023 |
| 4 | Insider transaction | Sep 28, 2023 | Sep 26, 2023 |
| 3 | Initial insider ownership | Sep 22, 2023 | Sep 12, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 19, 2023 | — |
| 4 | Insider transaction | Sep 14, 2023 | Sep 12, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Sep 14, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 8, 2023 | — |
| 4 | Insider transaction | Sep 8, 2023 | Sep 7, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 31, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 31, 2023 |
| 3 | Initial insider ownership | Aug 11, 2023 | Aug 7, 2023 |
| 4 | Insider transaction | Aug 3, 2023 | Aug 2, 2023 |
| 4 | Insider transaction | Aug 3, 2023 | Aug 2, 2023 |
| 4 | Insider transaction | Aug 3, 2023 | Aug 2, 2023 |
| 4 | Insider transaction | Aug 3, 2023 | Aug 2, 2023 |
| 3 | Initial insider ownership | Jul 24, 2023 | Jul 12, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 18, 2023 | — |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 14, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 14, 2023 | — |
| 4 | Insider transaction | Jul 14, 2023 | Jul 12, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 14, 2023 | — |
| 3 | Initial insider ownership | Jul 14, 2023 | Jul 12, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jul 14, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jul 13, 2023 | — |
| SC 13D | Ownership over 5% (active) | Jun 23, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jun 16, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 21, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 15, 2023 | — |
| SC 13D | Ownership over 5% (active) | Feb 16, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 10, 2023 | — |
| 4 | Insider transaction | Feb 3, 2023 | Feb 2, 2023 |
| 4 | Insider transaction | Feb 2, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Feb 1, 2023 | Jan 31, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Jan 3, 2023 |
| 4 | Insider transaction | Dec 19, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Dec 19, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Dec 19, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Dec 19, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Oct 7, 2022 | Oct 6, 2022 |
| 4 | Insider transaction | Oct 7, 2022 | Oct 6, 2022 |
| 4 | Insider transaction | Oct 7, 2022 | Oct 6, 2022 |
| 4 | Insider transaction | Oct 7, 2022 | Oct 6, 2022 |
| 4 | Insider transaction | Sep 19, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Sep 19, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Sep 19, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Sep 19, 2022 | Sep 15, 2022 |
| 4 | Insider transaction | Sep 1, 2022 | Aug 31, 2022 |
| 4 | Insider transaction | Sep 1, 2022 | Aug 31, 2022 |
| 4 | Insider transaction | Sep 1, 2022 | Aug 31, 2022 |
| 4 | Insider transaction | Sep 1, 2022 | Aug 31, 2022 |
| 4 | Insider transaction | Aug 4, 2022 | Aug 2, 2022 |
| 4 | Insider transaction | Aug 4, 2022 | Aug 2, 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
- Natural Gas Transmisison & Distribution (SIC 4923)
- Listed as
- NEXT (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1612720
- Former names
- NextDecade Corp. (until Jun 13, 2025); Harmony Merger Corp. (until Jul 25, 2017)
Other Natural Gas Transmisison & Distribution companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.