Slawomir Halaba acquired an additional 3.58% stake in Skyline Investment S.A. (WSE:SKL) on April 6, 2017. Post-acquisition Slawomir Halaba holds 16.45% stake in Skyline Investment S.A. Slawomir Halaba completed the acquisition of an additional 3.58% stake in Skyline Investment S.A. (WSE:SKL) on April 6, 2017.