Carlyle-backed Syniverse, a provider of mission-critical mobile platforms for carriers and enterprises, terminated the agreement to go public via a merger with M3-Brigade Acquisition II, a SPAC, in a $2.85bn deal. "We are disappointed that recent changes in market conditions made it impossible to consummate our proposed merger, but Syniverse is a great company with a strong management team and we are confident that it has a very bright future," Mohsin Y. Meghji, MBAC CEO.