 NEW YORK--BUSINESS WIRE--WHY: Rosen Law Firm, a global investor rights law firm, announces an investigation of potential securities claims on behalf of shareholders of Lightning eMotors, Inc. fka GigCapital3, Inc. NYSE: ZEV, GIK resulting from allegations that Lightning eMotors may have issued materially misleading business information to the investing public. SO WHAT: If you purchased Lightning eMotors securities you may be entitled to compensation without payment of any out of pocket fe 