TSX: RMX | OTCQX: RBYCF TORONTO, Dec. 20, 2018 /PRNewswire/ - Rubicon Minerals Corporation (TSX: RMX | OTCQX: RBYCF) ("Rubicon" or the "Company") announces that CPPIB Credit Investments Inc. ("CPPIB Credit"), a wholly owned subsidiary of the Canada Pension Plan Investment Board, has...