Welcome to our dedicated page for Southwest Gas Ho SEC filings (Ticker: SWX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Southwest Gas Holdings, Inc. (NYSE: SWX) SEC filings page on Stock Titan brings together the company’s official regulatory disclosures as filed with the U.S. Securities and Exchange Commission. As a regulated natural gas utility holding company, Southwest Gas Holdings uses its periodic and current reports to describe its natural gas distribution and transportation business, financial performance, capital structure, and governance arrangements.
In annual reports on Form 10‑K and quarterly reports on Form 10‑Q, Southwest Gas Holdings provides detailed information on its regulated natural gas operations through Southwest Gas Corporation, including discussions of customer growth in Arizona, Nevada, and California, rate and regulatory matters, and capital investments in pipeline and related infrastructure. These filings also explain the company’s separation from Centuri Holdings, Inc., the deconsolidation of Centuri’s financial results, and the classification of Centuri-related activity as discontinued operations.
Current reports on Form 8‑K offer more immediate insight into significant events. Recent 8‑K filings have addressed the sale of Centuri shares through public offerings and a private placement, the resulting deconsolidation and disposition of Centuri, cooperation and registration rights agreements with the Icahn Group, changes in board composition, and executive leadership transitions, including the appointment of a new Chief Financial Officer. Other 8‑K filings describe the company’s conclusion that certain 2025 interim financial statements should no longer be relied upon due to errors in state income tax expense and deferred income tax liabilities, and its plan to restate those periods in the 2025 Form 10‑K.
Through this page, users can review Forms 10‑K and 10‑Q for comprehensive financial and operational detail, as well as Forms 8‑K that capture material corporate actions, capital markets transactions, governance developments, and financial reporting matters. Stock Titan’s tools apply AI-powered summaries to these filings to help explain key topics such as the company’s regulated utility focus, tax-related restatement, cooperation agreements, and the financing steps taken to support natural gas infrastructure investments.
FMR LLC has filed an amended Schedule 13G reporting beneficial ownership of 5,649,915.30 shares of Southwest Gas Holdings common stock, representing 7.8% of the outstanding class as of the event date. FMR has sole voting power over 5,642,476 shares and sole dispositive power over 5,649,915.30 shares.
Abigail P. Johnson is also reported as a beneficial owner of the same 5,649,915.30 shares, with sole dispositive power and no voting power. The filing states that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Southwest Gas Holdings.
Icahn-affiliated entities filed Amendment No. 17 to their Schedule 13D on Southwest Gas Holdings, Inc., reporting ownership of 3,600,000 shares of common stock, or about 4.99% of the company’s outstanding shares.
The percentage is based on 72,183,903 shares outstanding as of November 21, 2025, as disclosed in a company prospectus supplement. The amendment states that, as of January 29, 2026, the Icahn group no longer beneficially owns more than five percent of Southwest Gas’s common stock and is therefore no longer subject to the primary Schedule 13D reporting requirements.
Southwest Gas Holdings, Inc. (SWX) received Amendment No. 16 to a Schedule 13D from entities associated with Carl C. Icahn, updating their ownership in the company’s common stock.
The reporting group may be deemed to beneficially own 4,761,357 shares of Southwest Gas common stock, or 6.6% of the outstanding shares, based on 72,183,903 shares outstanding as of November 21, 2025. Icahn Partners Master Fund holds 2,062,604 shares with sole voting and dispositive power over those shares, while Icahn Partners holds 2,698,753 shares with sole voting and dispositive power.
Icahn Capital and several related Icahn entities, along with Carl C. Icahn personally, report shared voting and dispositive power over the 4,761,357 shares through their relationships to Icahn Master and Icahn Partners. IEP Utility Holdings LLC reports zero shares but is included as a signatory to a 2025 agreement. Exhibit 1, referenced in the filing, lists all reportable transactions in the shares since January 2, 2025.
Southwest Gas Holdings, Inc. president Justin L. Brown reported a sale of common stock. On 01/09/2026, he sold 3,028 shares of Southwest Gas Holdings common stock at $81.08 per share, in a transaction coded "S". The filing notes this sale was made pursuant to a Rule 10b5-1 trading plan adopted on 09/10/2025.
After this sale, Brown directly held 6,320.344 shares of common stock. He also had indirect beneficial ownership of additional shares, including 3,658.482 shares through a 401(k), 10,207.59 shares through a limited liability company in which he and his spouse are the sole members, 210.12 shares held by his spouse, and 14,586.122 shares held by a family trust for which he serves as trustee. Some of these indirect balances include shares acquired through exempt dividend reinvestment transactions.
Southwest Gas Holdings executive reports share disposition and updated holdings. On January 8, 2026, officer Gabe Randall P., SVP/Chief Administrative Officer of Southwest Gas Holdings, Inc., reported a Form 4 transaction involving 1,036.527 shares of common stock in a transaction coded "F" at a price of $80.15 per share. After this transaction, he beneficially owned 18,216.504 shares of common stock directly and 1,197.987 shares indirectly through a 401(k) plan. The direct balance includes 174.673 shares and the 401(k) balance includes 37.792 shares that were acquired through exempt dividend reinvestment transactions.
Southwest Gas Holdings senior vice president and chief financial officer Justin S. Forsberg reported a change in his ownership of company common stock. On January 8, 2026, he disposed of 407.881 shares of Southwest Gas common stock at a reported price of $80.15 per share under transaction code F. Following this transaction, he directly owned 2,297.906 common shares of Southwest Gas Holdings.
Southwest Gas Holdings executive Catherine M. Mazzeo reported an equity transaction involving company common stock. On January 8, 2026, a transaction coded "F" covered 737.424 shares of Southwest Gas Holdings common stock at $80.15 per share, leaving her with 10,496.228 shares held directly.
She also reported an additional 745.839 shares held indirectly through a 401(k) plan. The reported direct balance includes 348.695 shares and the 401(k) balance includes 23.484 shares that were acquired through exempt dividend reinvestment transactions.
Southwest Gas Holdings, Inc. executive Amy L. Timperley, SVP/Chief Regulatory & Public Affairs, reported a Form 4 transaction in Southwest Gas Holdings, Inc. common stock. On January 8, 2026, a transaction coded "F" involved 864.181 shares at $80.15 per share, leaving her with 9,153.522 directly held shares of common stock. She also reported 8,975.446 shares held indirectly through a 401(k). Footnotes state that these balances include shares acquired through exempt dividend reinvestment transactions.
Southwest Gas Holdings, Inc. executive Julie M. Williams reported a tax-related share withholding in company stock. On January 8, 2026, 1,271.426 shares of Southwest Gas Holdings common stock were withheld at a price of
After this transaction, Williams directly held 20,603.966 shares of common stock and indirectly held 2,485.076 shares through a 401(k) plan. The filing notes that these balances include shares previously acquired through exempt dividend reinvestment transactions.
Southwest Gas Holdings officer Fabio A. Pineda reported a disposition of company stock. On 01/08/2026, he disposed of 249.889 shares of common stock at $80.15 per share, according to a Form 4 filing. After this transaction, he beneficially owned 1,203.538 shares directly. The reported balance includes 10.915 shares that were previously acquired through exempt dividend reinvestment transactions.