Shares of embattled electric-truck start-up Nikola (NASDAQ:NKLA) were trading lower on Wednesday afternoon, after Bloomberg reported that a key executive has left the company. As of 3 p.m. EDT today, Nikola's shares were down about 5.7% from Tuesday's closing price. So what Bloomberg's Ed Ludlow reported that Jesse Schneider, who had been Nikola's executive vice president of technology, hydrogen, and fuel cells, left the company on April 1. Schneider had been leading teams working on fuel cell systems for Nikola's upcoming electric semi trucks, as well as a planned network of hydrogen refueling stations, according to the report. Nikola plans to follow the launch of its battery-electric Tre, set for late this year, with a semi powered by hydrogen fuel cells. Those plans may now be in question after the executive leading the fuel-cell effort departed. Image source: Nikola.