X0306 4 2019-03-01 0001692115 Southwest Gas Holdings, Inc. SWX 0001350064 Hester John P 5241 SPRING MOUNTAIN ROAD LAS VEGAS NV 89150-0002 1 1 President and CEO Common Stock 2019-06-03 5 A 0 90.8020 86.5200 A 66784.3945 D Common Stock 2019-06-03 5 A 0 31.8610 86.5200 A 66816.2555 D Common Stock 2019-09-03 5 A 0 86.4210 91.4800 A 62902.6765 D Common Stock 2019-09-03 5 A 0 30.3240 91.4800 A 62933.0005 D Common Stock 2019-12-02 5 A 0 105.6300 75.2900 A 63038.6305 D Common Stock 2019-12-02 5 A 0 37.0640 75.2900 A 63075.6945 D Common Stock 2019-03-01 5 A 0 24.6049 82.8800 A 3915.8314 I By 401(k) Common Stock 2019-06-03 5 A 0 24.9500 86.5200 A 3940.7814 I By 401(k) Common Stock 2019-09-03 5 A 0 23.3680 91.4800 A 3964.1494 I By 401(k) Common Stock 2019-12-02 5 A 0 28.6670 75.2900 A 3992.8164 I By 401(k) Common Stock 5342.5148 I By IRA Common Stock 2422.3500 I By Spouse Amounts voluntarily reported were acquired through exempt dividend reinvestment transactions. Thomas E. Moran, POA 2019-12-04