BRAIN Biotech AG (XTRA:BNN) acquired additional 16.7% stake in Biocatalysts Limited from two minority shareholders for £3.9 million on May 12, 2021. Two minority shareholders have exercised their put option rights. BRAIN now holds a total of 82.2%. BRAIN Biotech AG (XTRA:BNN) completed the acquisition of additional 16.7% stake in Biocatalysts Limited from two minority shareholders on May 12, 2021.