Manguinhos Participacoes S.A. sold 5.5% stake in Refinaria de Petroleos de Manguinhos SA (BOVESPA:RPMG4) on March 21, 2012. As reported, Manguinhos Participacoes sold 43 million shares and reduced its stake from 73.359% to 67.859%. Manguinhos Participacoes S.A. completed the sale of 5.5% stake in Refinaria de Petroleos de Manguinhos SA (BOVESPA:RPMG4) on March 21, 2012.