
Shares of solar firm Sunnova Energy NOVA.N rise 16.9% to 58 cents in afternoon trading
Company names insider Paul Mathews as president and chief executive officer, effective immediately
Paul will succeed William J. Berger who has been the company's CEO for 12 years
"The circumstances of Mr. Berger's departure are yet to be clarified, but we remain cautious"- Jefferies
Including session's moves, shares were down ~83% YTD