Global Security Agency Inc. (GSAG: Grey Market) | Venue Change Wed, Apr 08, 2015 12:00 - Global Security Agency Inc. ( GSAG : Grey Market) - Venue Change - The symbol, GSAG, no longer trades on OTC Link. As of Wed, Apr 08, 2015, GSAG trades on Grey Market. You may find a complete list of venue changes at otcmarkets.com .