X0306 4 2022-03-04 0001692115 Southwest Gas Holdings, Inc. SWX 0001234538 KENNY KENNETH J 8360 S. DURANGO DR. LAS VEGAS NV 89113 1 VP/Finance/Treasurer Common Stock 2022-03-01 5 A 0 145.2630 69.5900 A 19631.9135 D Common Stock 2022-03-01 5 A 0 16.0260 69.5900 A 19647.9395 D Common Stock 2022-03-04 4 F 0 202.4100 70.0500 D 19445.5295 D Common Stock 2022-03-01 5 A 0 44.2380 69.5900 A 5349.1960 I By 401(k) Common Stock 2022-03-01 5 A 0 0.2940 69.5900 A 34.6400 I By Custodian For Child Amounts voluntarily reported were acquired through exempt dividend reinvestment transactions. Shares withheld to cover tax on Performance Share delivery reported on 2/23/2022. Thomas E. Moran, POA 2022-03-07