Benchmark lowered shares of Tecogen (OTCMKTS:TGEN – Free Report) from a buy rating to a hold rating in a report issued on Tuesday, Briefing.com reports. Tecogen Stock Down 1.0 % Shares of OTCMKTS TGEN opened at $0.77 on Tuesday. The business has a fifty day moving average price of $0.81 and a two-hundred day moving […]