<SEC-DOCUMENT>0001564590-18-012968-index.html : 20180510 <SEC-HEADER>0001564590-18-012968.hdr.sgml : 20180510 <ACCEPTANCE-DATETIME>20180510162100 ACCESSION NUMBER: 0001564590-18-012968 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180509 ITEM INFORMATION: Submission of Matters to a Vote of Security Holders FILED AS OF DATE: 20180510 DATE AS OF CHANGE: 20180510 FILER: COMPANY DATA: COMPANY CONFORMED NAME: ADTRAN INC CENTRAL INDEX KEY: 0000926282 STANDARD INDUSTRIAL CLASSIFICATION: TELEPHONE & TELEGRAPH APPARATUS [3661] IRS NUMBER: 630918200 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 000-24612 FILM NUMBER: 18822807 BUSINESS ADDRESS: STREET 1: 901 EXPLORER BLVD CITY: HUNTSVILLE STATE: AL ZIP: 35806 BUSINESS PHONE: 2569638220 MAIL ADDRESS: STREET 1: 901 EXPLORER BLVD CITY: HUNTSVILLE STATE: AL ZIP: 35806 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>adtn-8k_20180510.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: adtn-8k_20180510.htm
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