Southwest Gas Holdings, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Stefani Robert J | SVP/Chief Financial Officer | Tax Withholding | 4,484 | $80.44 | $360,688 | 28,444 | Nov 25, 2025 |
| ICAHN CARL C | — | Sale | 1,500,000 | $77.91 | $116,865,000 | 6,032,604 | Sep 25, 2025 |
| Sandoval Brian E | — | Purchase | 24 | $78.57 | $1,886 | 1,562 | Sep 10, 2025 |
| Haller Karen S | President and CEO | Award / Grant | 42,157 | — | — | 170,406 | Sep 5, 2025 |
| Stefani Robert J | SVP/CFO/Controller | Tax Withholding | 4,881 | $78.60 | $383,632 | 32,331 | Sep 5, 2025 |
| Pineda Fabio A | VP/Controller/CAO | Award / Grant | 1,443 | — | — | 1,443 | Jul 17, 2025 |
| Stefani Robert J | SVP/CFO/Controller | Sale | 7,000 | $75.00 | $525,000 | 24,665 | Jun 27, 2025 |
| Sandoval Brian E | — | Award / Grant | 1,538 | — | — | 1,538 | May 1, 2025 |
| Stefani Robert J | SVP/Chief Financial Officer | Sale | 2,000 | $72.55 | $145,100 | 31,665 | Mar 28, 2025 |
| ICAHN CARL C | — | Sale | 2,100,000 | $74.60 | $156,660,000 | 7,532,604 | Mar 24, 2025 |
| Timperley Amy L. | SVP/Chief Reg. & Public Aff. | Tax Withholding | 239 | $70.71 | $16,912 | 9,845 | Mar 4, 2025 |
| Colvin Lori L | VP/Controller/CAO | Tax Withholding | 424 | $70.71 | $30,006 | 8,567 | Mar 4, 2025 |
| Williams Julie M. | SVP/Cont. Improvement and Opt. | Tax Withholding | 289 | $70.71 | $20,404 | 21,187 | Mar 4, 2025 |
| Haller Karen S | President and CEO | Tax Withholding | 5,418 | $70.71 | $383,083 | 128,249 | Mar 4, 2025 |
| Mazzeo Catherine M | SVP/Chief Legal/Comp. Officer | Tax Withholding | 254 | $70.71 | $17,967 | 10,885 | Mar 4, 2025 |
| Gabe Randall P. | SVP/Chief Administrative OFC | Tax Withholding | 467 | $70.71 | $32,995 | 19,078 | Mar 4, 2025 |
| Brown Justin L | President/Southwest Gas Corp. | Tax Withholding | 3,211 | $76.89 | $246,931 | 36,205 | Mar 4, 2025 |
| Evans Andrew W | — | Award / Grant | 2,051 | — | — | 8,105 | Feb 20, 2025 |
| Gabe Randall P. | SVP/Chief Administrative OFC | Award / Grant | 1,249 | — | — | 19,545 | Feb 20, 2025 |
| Haller Karen S | President and CEO | Award / Grant | 13,768 | — | — | 133,666 | Feb 20, 2025 |
| Stefani Robert J | SVP/Chief Financial Officer | Award / Grant | 6,427 | — | — | 33,665 | Feb 20, 2025 |
| Colvin Lori L | VP/Controller/CAO | Award / Grant | 1,421 | — | — | 7,856 | Feb 20, 2025 |
| MARIUCCI ANNE L | — | Award / Grant | 2,051 | — | — | 47,251 | Feb 20, 2025 |
| Ruisanchez Carlos | — | Award / Grant | 2,051 | — | — | 8,683 | Feb 20, 2025 |
| Thoman A. Randall | — | Award / Grant | 2,051 | — | — | 42,738 | Feb 20, 2025 |
| Williams Julie M. | SVP/Cont. Improvement and Opt. | Award / Grant | 2,736 | — | — | 20,742 | Feb 20, 2025 |
| Brown Justin L | President/Southwest Gas Corp. | Award / Grant | 8,161 | — | — | 40,972 | Feb 20, 2025 |
| Linginfelter Henry P | — | Award / Grant | 2,051 | — | — | 8,105 | Feb 20, 2025 |
| Mazzeo Catherine M | SVP/Chief Legal/Comp. Officer | Award / Grant | 1,044 | — | — | 11,139 | Feb 20, 2025 |
| CONLEY E RENAE | — | Award / Grant | 2,051 | — | — | 9,528 | Feb 20, 2025 |
| Lewis-Raymond Jane | — | Award / Grant | 2,051 | — | — | 16,752 | Feb 20, 2025 |
| Teno Andrew | — | Award / Grant | 2,051 | — | — | 7,996 | Feb 20, 2025 |
| Timperley Amy L. | SVP/Chief Reg. & Public Aff. | Award / Grant | 982 | — | — | 10,084 | Feb 20, 2025 |
| Sharma Ruby | — | Award / Grant | 2,051 | — | — | 7,539 | Feb 20, 2025 |
| Thornton Leslie T | — | Award / Grant | 2,051 | — | — | 15,177 | Feb 20, 2025 |
| Gabe Randall P. | SVP/Chief Administrative OFC | Tax Withholding | 852 | $71.34 | $60,755 | 15,445 | Jan 13, 2025 |
| Timperley Amy L. | SVP/Chief Reg. & Fin. Planning | Tax Withholding | 622 | $71.34 | $44,384 | 5,781 | Jan 13, 2025 |
| Haller Karen S | President and CEO | Tax Withholding | 6,923 | $71.34 | $493,854 | 99,157 | Jan 13, 2025 |
| Colvin Lori L | VP/Controller/CAO | Tax Withholding | 492 | $71.34 | $35,092 | 6,319 | Jan 13, 2025 |
| Stefani Robert J | SVP/Chief Financial Officer | Tax Withholding | 2,092 | $71.34 | $149,234 | 27,059 | Jan 13, 2025 |
| Williams Julie M. | SVP/Cont. Improvement and Opt. | Tax Withholding | 1,039 | $71.34 | $74,156 | 17,744 | Jan 13, 2025 |
| Brown Justin L | President/Southwest Gas Corp. | Tax Withholding | 2,022 | $71.34 | $144,230 | 21,808 | Jan 13, 2025 |
| Mazzeo Catherine M | SVP/Chief Legal/Comp. Officer | Tax Withholding | 408 | $71.43 | $29,151 | 6,473 | Jan 13, 2025 |
| Mazzeo Catherine M | SVP/Chief Legal/Comp. Officer | Award / Grant | 25 | $71.82 | $1,825 | 6,498 | Dec 2, 2024 |
| Stefani Robert J | SVP/Chief Financial Officer | Award / Grant | 178 | $78.16 | $13,913 | 27,237 | Dec 2, 2024 |
| Stefani Robert J | SVP/Chief Financial Officer | Award / Grant | 286 | $71.82 | $20,574 | 33,492 | Nov 27, 2024 |
| ICAHN PARTNERS LP | — | Sale | 1,390,000 | $76.74 | $106,668,600 | 9,632,604 | Nov 19, 2024 |
| MARIUCCI ANNE L | — | Award / Grant | 345 | $76.16 | $26,313 | 44,671 | Sep 3, 2024 |
| Thoman A. Randall | — | Award / Grant | 273 | $78.16 | $21,311 | 40,688 | Sep 3, 2024 |
| Gabe Randall P. | SVP/Chief Administrative OFC | Award / Grant | 40 | $78.16 | $3,150 | 15,623 | Sep 3, 2024 |