Dolgosrochnyye investitsii OOO acquired 18.19% stake in Public Joint Stock Company "INGRAD" (MISX:OPIN) on August 17, 2018. Dolgosrochnyye investitsii OOO completed the acquisition of 18.19% stake in Public Joint Stock Company "INGRAD" (MISX:OPIN) on August 17, 2018.