TBG Diagnostics Limited (ASX:TDL) acquired an additional 27.9% stake in BioBay Medical Health Ltd on May 3, 2019. Post completion, TBG Diagnostics Limited hold 87.99% stake in BioBay Medical Health Ltd. TBG Diagnostics Limited (ASX:TDL) completed the acquisition of an additional 27.9% stake in BioBay Medical Health Ltd on May 3, 2019.