 HUNTSVILLE, Ala.--BUSINESS WIRE--ADTRAN, Inc. NASDAQ: ADTN ADTRAN or the Company today announced financial results for the fourth quarter of 2020. For the quarter, revenue was 130.1 million. Net income for the fourth quarter of 2020 was 6.1 million and earnings per share, assuming dilution, was 0.13 per share. Non-GAAP net income was 5.2 million and non-GAAP earnings per share, assuming dilution, was 0.11 per share. Non-GAAP net income and non-GAAP earnings per share exclude stoc 