 Shares of Lightning eMotors Inc. ZEV, 2.07 soared 46.3 to pace all premarket gainers Tuesday, after the commercial electric vehicles company announced a a partnership agreement valued at up to 850 million with Berkshire Hathaway Inc.s BRK.A, 0.40 BRK.B, 0.56 Forest River Inc. for the deployment of 7,500 zero-emission shuttle buses. Under terms of the agreement, Lightning eMotors will provide fully electric powertrains, charging products and services for Forest River over the next four and a half years. 