Southwest Gas
Regulated natural gas distribution and transportation across Arizona, Nevada, and California.
$88.65
After-hours close−0.44 (−0.49%)
At close$89.09(−0.37%)
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Breakdown13F · Form 4
Institutions 103.27%Insiders 0.67%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 72.37M · Float 71.88M · 99.3% free float
Institutions13F, as of Jun 30, 2026
412 holders · 74.74M shares · 56 new positions · 226 increased · 115 reduced · 43 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 11.18M | 15.45% | +434.1K | Aug 7, 2026 |
| FMR LLC | 5.58M | 7.70% | +413.2K | Aug 13, 2026 |
| Vanguard Portfolio Management LLC | 3.97M | 5.49% | +117.7K | Aug 13, 2026 |
| Corvex Management LP | 3.21M | 4.43% | −1.11M | Aug 14, 2026 |
| Vanguard Capital Management LLC | 3.05M | 4.21% | +39.3K | Aug 13, 2026 |
| State Street Corp | 2.61M | 3.60% | +185.6K | Aug 7, 2026 |
| Geode Capital Management, LLC | 2.09M | 2.88% | +379.0K | Aug 12, 2026 |
| Maverick Capital Ltd | 1.89M | 2.61% | −237.4K | Aug 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 7.80% | 5.65M | 13G | Feb 5, 2026 ↗ |
| Vanguard Portfolio Management | 5.36% | 3.88M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Icahn Carl C | 10 percent owner | 6.03M | 8.34% | Sep 26, 2025 |
| Karen S. Haller | officer: President and CEO | 186.8K | 0.26% | Mar 3, 2026 |
| Anne L. Mariucci | director | 50.1K | 0.07% | Feb 23, 2026 |
| Julie M. Williams | officer: SVP/Cont. Improvement and Opt. | 29.0K | 0.04% | Mar 3, 2026 |
| Robert J. Stefani | officer: SVP/Chief Financial Officer | 28.4K | 0.04% | Nov 26, 2025 |
| Justin L. Brown | officer: President/Southwest Gas Corp. | 27.6K | 0.04% | Mar 3, 2026 |
| Randall P. Gabe | officer: SVP/Chief Administrative OFC | 24.2K | 0.03% | Mar 3, 2026 |
| Jane Lewis-Raymond | director | 17.5K | 0.02% | Feb 23, 2026 |
| Leslie T. Thornton | director | 17.2K | 0.02% | Feb 23, 2026 |
| Catherine M. Mazzeo | officer: SVP/Chief Legal/Comp. Officer | 16.2K | 0.02% | Mar 3, 2026 |
1 ten-percent owner holds 6.03M shares by Form 4, outside the officers-and-directors figure above · 22 people have not refiled in the last 18 months (611.6K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jan 9, 2026 | Justin L. Brownofficer: President/Southwest Gas Corp. | Sale | 3,028 | $81.08 | 6,320 |
| Sep 25, 2025 | Carl C. Icahn10 percent owner | Sale | 1,500,000 | $77.91 | 6,032,604 |
| Sep 10, 2025 | Brian E. Sandovaldirector | Purchase | 24 | $78.57 | 1,562 |
CongressHouse and Senate disclosures
Not reported.