A week that began with its founder’s resignation brought additional trouble for electric vehicle company Nikola Corp. on Wednesday when a shareholder filed a lawsuit in the U.S. District Court for the District of Delaware.

The complaint filed by shareholder Hyeyoung Byun against Nikola and 15 individuals is the third federal securities case pending against the company and alleges the Nikola’s reputation and success, including a recently announced $2 billion in-kind agreement with General Motors, were based on lies.