Southwest Gas Holdings, Inc. SEC filings SWX
Southwest Gas Holdings, Inc. has 1,013 filings in SEC EDGAR's recent list, going back to Mar 2, 2018. Its latest annual report, Form ARS, was filed on Mar 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 27, 2026 | — |
| 4 | Insider transaction | Sep 29, 2026 | Sep 28, 2026 |
| 144 | Notice of proposed sale | Sep 28, 2026 | — |
| 4 | Insider transaction | May 13, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 13, 2026 | May 7, 2026 |
| 3 | Initial insider ownership | May 13, 2026 | May 7, 2026 |
| 3 | Initial insider ownership | May 13, 2026 | May 7, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 8, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 144 | Notice of proposed sale | Mar 4, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Feb 27, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 29, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 21, 2026 | — |
| 4 | Insider transaction | Jan 13, 2026 | Jan 9, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 144 | Notice of proposed sale | Jan 9, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 2, 2026 | — |
| 3 | Initial insider ownership | Dec 10, 2025 | Dec 1, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 26, 2025 | — |
| 4 | Insider transaction | Nov 26, 2025 | Nov 25, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 14, 2025 | — |
| 4 | Insider transaction | Sep 26, 2025 | Sep 25, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 26, 2025 | — |
| 4 | Insider transaction | Sep 11, 2025 | Sep 10, 2025 |
| 4 | Insider transaction | Sep 9, 2025 | Sep 5, 2025 |
| 4 | Insider transaction | Sep 9, 2025 | Sep 5, 2025 |
| 4 | Insider transaction | Sep 5, 2025 | Sep 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Sep 5, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| 4 | Insider transaction | Aug 12, 2025 | Aug 11, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 6, 2025 | — |
| 4 | Insider transaction | Jul 21, 2025 | Jul 17, 2025 |
| 3 | Initial insider ownership | Jul 21, 2025 | Jul 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 8, 2025 | — |
| 4 | Insider transaction | Jul 8, 2025 | Jul 8, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 144 | Notice of proposed sale | Jun 27, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jun 18, 2025 | — |
| 4 | Insider transaction | Jun 18, 2025 | Jun 18, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 28, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 23, 2025 | — |
| 4 | Insider transaction | May 23, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 2, 2025 | May 1, 2025 |
| 3 | Initial insider ownership | May 1, 2025 | May 1, 2025 |
| 4 | Insider transaction | Mar 31, 2025 | Mar 28, 2025 |
| 144 | Notice of proposed sale | Mar 28, 2025 | — |
| 4 | Insider transaction | Mar 25, 2025 | Mar 24, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 25, 2025 | — |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Mar 4, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 5 | Annual insider ownership | Feb 13, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Jan 15, 2025 | Jan 13, 2025 |
| 4 | Insider transaction | Dec 3, 2024 | Nov 27, 2024 |
| 4 | Insider transaction | Nov 20, 2024 | Nov 19, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 20, 2024 | — |
| 144 | Notice of proposed sale | Nov 19, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 15, 2024 | — |
| 4 | Insider transaction | Aug 28, 2024 | Aug 26, 2024 |
| 144 | Notice of proposed sale | Aug 27, 2024 | — |
| 144 | Notice of proposed sale | Aug 26, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 19, 2024 | — |
| 3 | Initial insider ownership | Aug 9, 2024 | Jul 31, 2024 |
| 4 | Insider transaction | May 14, 2024 | May 13, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 10, 2024 | May 9, 2024 |
| 144 | Notice of proposed sale | May 10, 2024 | — |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 3 | Initial insider ownership | Apr 17, 2024 | Apr 17, 2024 |
| 144 | Notice of proposed sale | Apr 1, 2024 | — |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 144 | Notice of proposed sale | Mar 1, 2024 | — |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 23, 2024 | — |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 4 | Insider transaction | Jan 11, 2024 | Jan 10, 2024 |
| 3 | Initial insider ownership | Jan 5, 2024 | Jan 1, 2024 |
| 4 | Insider transaction | Dec 28, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Dec 27, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Dec 1, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Dec 28, 2023 | Mar 1, 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
- Natural Gas Transmisison & Distribution (SIC 4923)
- Listed as
- SWX (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Las Vegas, NV
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1692115
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.