Institut de recherche technologique (IRT) SystemX acquired 15% stake of The Blockchain Xdev from The Blockchain Group (ENXTPA:ALTBG) on June 4, 2019. Institut de recherche technologique (IRT) SystemX completed the acquisition of 15% stake of The Blockchain Xdev from The Blockchain Group (ENXTPA:ALTBG) on June 4, 2019.