| 09/18/26 | Demaria DustinDirector | Buy | 5,200 | $19.27 | $100.20K |
| 08/12/26 | Hunter Danielle E.See Remarks | Award | 20,193 | - | - |
| 08/12/26 | Hunter Danielle E.See Remarks | Award | 10,517 | - | - |
| 08/12/26 | Youngblood KellySee Remarks | Award | 85,401 | - | - |
| 08/12/26 | Youngblood KellySee Remarks | Award | 72,864 | - | - |
| 08/12/26 | Hunter Danielle E.See Remarks | Award | 16,967 | - | - |
| 08/12/26 | Hunter Danielle E.See Remarks | Award | 8,837 | - | - |
| 05/19/26 | Evans Andrew WDirector | Award | 4,067 | - | - |
| 05/19/26 | Mariucci Anne LDirector | Award | 4,067 | - | - |
| 05/19/26 | Patton Charles R.Director | Award | 4,067 | - | - |
| 05/19/26 | Krummel Christopher ADirector | Award | 4,067 | - | - |
| 05/19/26 | Dill JulieDirector | Award | 4,067 | - | - |
| 05/19/26 | Haller Karen SDirector | Award | 4,067 | - | - |
| 05/19/26 | Demaria DustinDirector | Award | 7,736 | - | - |
| 05/19/26 | Nielsen Steven EDirector | Award | 5,290 | - | - |
| 05/18/26 | Evans Andrew WDirector | Option Exercise | 7,338 | - | - |
| 05/18/26 | Mariucci Anne LDirector | Option Exercise | 7,338 | - | - |
| 05/18/26 | Patton Charles R.Director | Option Exercise | 7,338 | - | - |
| 05/18/26 | Krummel Christopher ADirector | Option Exercise | 7,338 | - | - |
| 05/18/26 | Dill JulieDirector | Option Exercise | 7,338 | - | - |
| 05/18/26 | Haller Karen SDirector | Option Exercise | 7,338 | - | - |
| 02/25/26 | Brown ChristianChief Executive Officer, Director | Tax Withholding | 4,893 | $30.96 | $151.49K |
| 02/25/26 | Wilcock Jason S.See Remarks | Tax Withholding | 1,984 | $30.96 | $61.42K |
| 02/25/26 | Chilton KendraSVP, Chief Accounting Officer | Tax Withholding | 454 | $30.96 | $14.06K |
| 02/25/26 | Izenstark Gregory A.Chief Financial Officer | Tax Withholding | 2,868 | $30.96 | $88.79K |
| 02/17/26 | Chilton KendraSVP, Chief Accounting Officer | Award | 3,114 | - | - |
| 02/17/26 | Chilton KendraSVP, Chief Accounting Officer | Option Exercise | 2,186 | - | - |
| 02/17/26 | Izenstark Gregory A.Chief Financial Officer | Award | 11,309 | - | - |
| 02/17/26 | Izenstark Gregory A.Chief Financial Officer | Option Exercise | 16,111 | - | - |
| 02/17/26 | Brown ChristianChief Executive Officer, Director | Award | 45,683 | - | - |
| 02/17/26 | Brown ChristianChief Executive Officer, Director | Option Exercise | 31,417 | - | - |
| 02/17/26 | Wilcock Jason S.See Remarks | Award | 9,455 | - | - |
| 02/17/26 | Wilcock Jason S.See Remarks | Option Exercise | 10,586 | - | - |
| 01/30/26 | Connell James W. Jr.See Remarks | Option Exercise | 19,011 | - | - |
| 01/30/26 | Connell James W. Jr.See Remarks | Tax Withholding | 5,280 | $27.83 | $146.94K |
| 12/04/25 | Brown ChristianChief Executive Officer, Director | Sell | 7,108 | $24.51 | $174.22K |
| 12/03/25 | Brown ChristianChief Executive Officer, Director | Option Exercise | 29,197 | - | - |
| 11/14/25 | Icahn Carl C10%+ Owner+ 2 joint filers | Buy | 3,488,372 | $21.50 | $75.00M |
| 09/05/25 | Southwest Gas Holdings, Inc.10%+ Owner | Sell | 27,362,210 | $19.60 | $536.30M |
| 08/11/25 | Southwest Gas Holdings, Inc.10%+ Owner | Sell | 18,823,500 | $19.50 | $367.06M |
| 07/08/25 | Southwest Gas Holdings, Inc.10%+ Owner | Sell | 1,060,240 | $20.75 | $22.00M |