BlackRock discloses 5 pct stake in NZ's a2 Milk By: Reuters: Company News June 10, 2018 at 16:58 PM EDT June 11 (Reuters) - BlackRock Inc, the world's largest asset manager, disclosed on Monday a 5 percent stake in New Zealand dairy firm a2 Milk Company Ltd. Read More >> Related Stocks: Acacia Pharma Group Plc BlackRock