Certain Common Stock of Southwest Gas Holdings, Inc. are subject to a Lock-Up Agreement Ending on 27-JAN-2019. These Common Stock will be under lockup for 61 days starting from 27-NOV-2018 to 27-JAN-2019. Details: The directors and executive officers have agreed that they will not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly, any shares of common stock or any securities convertible into or exercisable or exchangeable for common stock, for a period of 60 days after the date of the prospectus without the prior written consent of J.P. Morgan Securities LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and Wells Fargo Securities, LLC.