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 |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2026 | Nov 4, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 27, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Oct 20, 2026 | Oct 20, 2026 |
| 4 | Insider transaction | Sep 29, 2026 | Sep 28, 2026 |
| 144 | Notice of proposed sale | Sep 28, 2026 | — |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 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 |
| 8-K |
Current report
Shareholder vote results
|
May 11, 2026 | May 7, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 8, 2026 | — |
| 10-Q | Quarterly report | May 5, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| ARS | Annual report to shareholders | Mar 23, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 23, 2026 | — |
| DEF 14A | Proxy statement | Mar 23, 2026 | May 7, 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 |
| 8-K |
Current report
Officer or director change
|
Feb 25, 2026 | Feb 19, 2026 |
| 10-K | Annual report | Feb 25, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 25, 2026 | Feb 25, 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 |
| 8-K |
Current report
Agreement ended
|
Feb 12, 2026 | Feb 11, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 11, 2026 | Feb 6, 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 |
| 8-K |
Current report
Results of operations, Restatement, Regulation FD disclosure
|
Jan 9, 2026 | Jan 9, 2026 |
| 144 | Notice of proposed sale | Jan 9, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 2, 2026 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 2, 2026 | Dec 31, 2025 |
| 3 | Initial insider ownership | Dec 10, 2025 | Dec 1, 2025 |
| 424B7 | Filing | Nov 26, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 26, 2025 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Other events
|
Nov 26, 2025 | Nov 26, 2025 |
| 4 | Insider transaction | Nov 26, 2025 | Nov 25, 2025 |
| 8-K |
Current report
Officer or director change
|
Nov 5, 2025 | Oct 31, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 5, 2025 | — |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2025 | Nov 5, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 14, 2025 | — |
| 8-K |
Current report
Material agreement
|
Oct 14, 2025 | 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 |
| 8-K |
Current report
Other events
|
Sep 5, 2025 | Sep 3, 2025 |
| 4 | Insider transaction | Sep 5, 2025 | Sep 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Sep 5, 2025 | — |
| 8-K/A | Amended current report | Aug 15, 2025 | Aug 11, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 12, 2025 | — |
| 4 | Insider transaction | Aug 12, 2025 | Aug 11, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets
|
Aug 12, 2025 | Aug 6, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 6, 2025 | — |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| 4 | Insider transaction | Jul 21, 2025 | Jul 17, 2025 |
| 3 | Initial insider ownership | Jul 21, 2025 | Jul 17, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 9, 2025 | Jul 2, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 8, 2025 | — |
| 4 | Insider transaction | Jul 8, 2025 | Jul 8, 2025 |
| 8-K |
Current report
Other events
|
Jul 8, 2025 | Jul 8, 2025 |
| 8-K |
Current report
Material agreement
|
Jul 2, 2025 | Jun 27, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 2, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 27, 2025 |
| 144 | Notice of proposed sale | Jun 27, 2025 | — |
| 11-K | Employee savings plan report | Jun 25, 2025 | Dec 31, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jun 18, 2025 | — |
| 4 | Insider transaction | Jun 18, 2025 | Jun 18, 2025 |
| 8-K |
Current report
Material agreement
|
Jun 18, 2025 | Jun 13, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 6, 2025 | Jun 5, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 3, 2025 | May 29, 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 |
| 8-K |
Current report
Material agreement, Agreement ended, Change to shareholder rights
|
May 22, 2025 | May 19, 2025 |
| 15-12G | Deregistration | May 21, 2025 | — |
| 25-NSE | Delisting notice | May 21, 2025 | — |
| 10-Q | Quarterly report | May 12, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 5, 2025 | May 1, 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 | — |
| ARS | Annual report to shareholders | Mar 17, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 17, 2025 | — |
| DEF 14A | Proxy statement | Mar 17, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 13, 2025 | Mar 9, 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 |
| 10-K | Annual report | Feb 26, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2025 | Feb 26, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 25, 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 |
| 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 | — |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2024 | Nov 6, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 15, 2024 | — |
| 8-K |
Current report
Material agreement
|
Oct 15, 2024 | 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 |
| 8-K |
Current report
Other events
|
Aug 6, 2024 | Aug 6, 2024 |
| 424B5 | Prospectus supplement | Aug 6, 2024 | — |
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.