Biogen Inc. announced earnings results for the fourth quarter ended December 31, 2018. For the fourth quarter, the company announced total revenue was USD 3,526.3 million compared to USD 3,307 million a year ago. Operating income was USD 1,443.1 million compared to USD 1,466.2 million a year ago. Net income was USD 946.8 million compared to net loss of USD 297.4 million a year ago. Basic earnings per share was USD 4.74 compared to basic loss per share of USD 1.41 a year ago. Diluted earnings per share was USD 4.73 compared to diluted loss per share of USD 1.4 a year ago. For the full year, total revenue was USD 13,452.9 million compared to USD 12,273.9 million a year ago. Operating income was USD 5,888.6 million compared to USD 5,345.8 million a year ago. Net income was USD 4,430.7 million compared to USD 2,539.1 million a year ago. Basic earnings per share was USD 21.63 compared to USD 11.94 a year ago. Diluted earnings per share was USD 21.58 compared to USD 11.92 a year ago.