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Gabelli highlights Southwest Gas Southwest Gas (SWX) Oct 21, 2021 12:45PM
Form SC 13D/A SOUTHWEST GAS CORP Filed by: GAMCO INVESTORS, INC. ET AL Oct 9, 2018 04:01PM
Form SC 13D/A SOUTHWEST GAS CORP Filed by: GAMCO INVESTORS, INC. ET AL Mar 22, 2016 02:43PM
Form SC 13D/A SOUTHWEST GAS CORP Filed by: GAMCO INVESTORS, INC. ET AL Aug 11, 2015 04:07PM