 Radnor, Pennsylvania--Newsfile Corp. - May 1, 2021 - The law firm of Kessler Topaz Meltzer Check, LLP reminds investors of final deadline in securities fraud class action lawsuit filed against Leidos Holdings, Inc. NYSE: LDOS Leidos on behalf of those who purchased or acquired Leidos securities between May 4, 2020 and February 23, 2021, inclusive the Class Period.Investor Deadline Reminder: Investors who purchased or acquired Leidos securities during the Class Period may,... 