Tecogen Inc (TGEN: OTCQX U.S.) | Venue Change Fri, Jun 19, 2020 12:00 - Tecogen Inc ( TGEN : OTC Link) - Venue Change - The symbol, TGEN, no longer trades on Nasdaq. As of Fri, Jun 19, 2020, TGEN trades on OTC Link. You may find a complete list of venue changes at otcmarkets.com .
