Momenta Pharmaceuticals Inc. announced earnings results for the first quarter ended March 31, 2019. For the first quarter, the company announced total revenue was USD 4.113 million compared to USD 4.852 million a year ago. Operating income was USD 48.091 million compared to USD 49.002 million a year ago. Net loss was USD 44.843 million compared to USD 47.631 million a year ago. Basic loss per share was USD 0.46 compared to USD 0.63 a year ago.