WASHINGTON, June 14 -- Law firms assisted companies in the following recently announced transactions: * * * Ropes & Gray advised the underwriters in Insmed Inc.'s $750 million follow-on offering. This action, which was announced on June 11 and closed on June 13, supports Insmed, a global biopharmaceutical company focused on developing therapies for serious diseases, particularly in pulmonary and inflammatory conditions. The Ropes & Gray team included capital markets partner Tom Danielski, life more ST