| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 02/28/2018 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 1.6k | $80.48 | $129k | | 02/28/2018 |
| 01/25/2018 | Southwest Gas Holdings, Inc. | SWX | Payment of Exercise | Common Stock | 243.182 | $79.13 | $19.2k | | 01/25/2018 |
| 01/25/2018 | Southwest Gas Holdings, Inc. | SWX | Payment of Exercise | Common Stock | 606.807 | $79.13 | $48k | | 01/25/2018 |
| 01/25/2018 | Southwest Gas Holdings, Inc. | SWX | Payment of Exercise | Common Stock | 759.217 | $80.48 | $61.1k | | 01/25/2018 |
| 01/25/2018 | Southwest Gas Holdings, Inc. | SWX | Payment of Exercise | Common Stock | 1.3k | $80.48 | $106k | | 01/25/2018 |
| 12/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 26.832 | $86.23 | $2.3k | By 401(k) | 01/25/2018 |
| 12/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 42.07 | $86.23 | $3.6k | | 01/25/2018 |
| 12/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 36.603 | $86.23 | $3.2k | | 01/25/2018 |
| 09/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 45.298 | $79.59 | $3.6k | | 01/25/2018 |
| 09/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 39.411 | $79.59 | $3.1k | | 01/25/2018 |
| 09/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 28.9591 | $79.59 | $2.3k | By 401(k) | 01/25/2018 |
| 06/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 44.418 | $80.67 | $3.6k | | 01/25/2018 |
| 06/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 38.646 | $80.67 | $3.1k | | 01/25/2018 |
| 06/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 28.6759 | $80.67 | $2.3k | By 401(k) | 01/25/2018 |
| 03/08/2017 | Southwest Gas Holdings, Inc. | SWX | Disposition | Common Stock | 1.5k | $83.96 | $125.9k | | 03/08/2017 |
| 03/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 24.1372 | $85.76 | $2.1k | By 401(k) | 01/25/2018 |
| 03/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 37.786 | $85.76 | $3.2k | | 01/25/2018 |
| 03/01/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 32.875 | $85.76 | $2.8k | | 01/25/2018 |
| 02/23/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 1.7k | $77.26 | $131.6k | | 02/23/2017 |
| 02/23/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 1.6k | $76.62 | $123k | | 02/23/2017 |
| 02/23/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 1.2k | $77.26 | $96.4k | | 02/23/2017 |
| 01/23/2017 | Southwest Gas Holdings, Inc. | SWX | Payment of Exercise | Common Stock | 698.397 | $78.44 | $54.8k | | 01/23/2017 |
| 01/23/2017 | Southwest Gas Holdings, Inc. | SWX | Payment of Exercise | Common Stock | 1.1k | $76.62 | $80.8k | | 01/23/2017 |
| 01/09/2017 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 1.8k | $71.18 | $125k | | 01/09/2017 |
| 12/01/2016 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 53.033 | $73.33 | $3.9k | | 01/09/2017 |
| 12/01/2016 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 33.724 | $73.33 | $2.5k | | 01/09/2017 |
| 12/01/2016 | Southwest Gas Holdings, Inc. | SWX | Grant | Common Stock | 27.4479 | $73.33 | $2k | By 401(k) | 01/09/2017 |
| 05/27/2016 | SOUTHWEST GAS CORP | SWX | Sale | Common Stock | 1000 | $69.25 | $69.2k | | 05/27/2016 |
| 06/03/2013 | SOUTHWEST GAS CORP | SWX | Grant | Common Stock | 75.9184 | $48.34 | $3.7k | | 06/03/2013 |
| 06/03/2013 | SOUTHWEST GAS CORP | SWX | Grant | Common Stock | 32.6502 | $48.34 | $1.6k | | 06/03/2013 |
| 06/03/2013 | SOUTHWEST GAS CORP | SWX | Grant | Common Stock | 28.515 | $48.34 | $1.4k | By 401(k) | 06/03/2013 |
| 03/14/2013 | SOUTHWEST GAS CORP | SWX | Sale | Common Stock | 1000 | $47.06 | $47.1k | | 03/14/2013 |
| 09/04/2012 | SOUTHWEST GAS CORP | SWX | Grant | Common Stock | 66.9892 | $43.52 | $2.9k | | 09/04/2012 |
| 09/04/2012 | SOUTHWEST GAS CORP | SWX | Grant | Common Stock | 22.8276 | $43.52 | $993.5 | | 09/04/2012 |
| 09/04/2012 | SOUTHWEST GAS CORP | SWX | Grant | Common Stock | 27.8181 | $43.52 | $1.2k | By 401(k) | 09/04/2012 |
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