 HUNTSVILLE, Ala.--BUSINESS WIRE--ADTRAN, Inc., NASDAQ:ADTN ADTRAN or the Company, today announced financial results for the second quarter of 2021. For the quarter, revenue was 143.2 million. Net income for the second quarter of 2021 was 5.1 million and earnings per share, assuming dilution, was 0.10 per share. Non-GAAP net income was 8.1 million and non-GAAP earnings per share, assuming dilution, was 0.16 per share. Non-GAAP net income and non-GAAP earnings per share exclude acq 