NN-Invest OOO sold 0.79% stake in Public Joint Stock Company Mining and Metallurgical Company Norilsk Nickel (LSE:MNOD) on December 13, 2016. NN-Invest OOO completed the sale of 0.79% stake in Public Joint Stock Company Mining and Metallurgical Company Norilsk Nickel (LSE:MNOD) on December 13, 2016.