X0306 4 2020-06-09 0 0000926282 ADTRAN INC ADTN 0001327057 McCray Gregory James 901 EXPLORER BOULEVARD HUNTSVILLE AL 35806 1 0 0 0 Common Stock 2020-06-09 4 A 0 56.049 11.78 A 25116.12 D Dividend Equivalent Rights 2020-09-03 4 A 0 79.235 0 A Common Stock 79.235 253.378 D Reflects shares acquired through the automatic reinvestment of dividends paid on the Company's common stock. Settlement of dividend equivalent rights in connection with the vesting of restricted stock units. The rights accrue when and as dividends are paid on the Company's common stock and are paid in whole shares of common stock with the remainder paid in cash. Each dividend equivalent right is the equivalent of one share of the Company's common stock. Michael Foliano, by power of attorney 2020-09-08