Washington, D.C. 20549




Specialized Disclosure Report




(Exact name of Registrant as specified in its charter)




Delaware   0-24612   63-0918200
(State of Incorporation)   (Commission file number)  

(I.R.S. Employer

Identification Number)

901 Explorer Boulevard, Huntsville, Alabama 35806-2807

(Address of principal executive offices, including zip code)

(256) 963-8000

(Registrant’s telephone number, including area code)



Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:


x Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2015.




Section 1 – Conflict Minerals Disclosure


Item 1.01 Conflict Minerals Disclosure and Report

We have prepared a Conflict Minerals Report, which is attached to this Form SD as an exhibit. This Conflict Minerals Report includes a discussion of the due diligence procedures performed and the disclosures required by the SEC.

We have disclosed the information above, along with a copy of our Conflict Minerals Report and related materials, on the Investor Relations site at


Item 1.02 Exhibits

The Conflict Minerals Report required by Item 1.01 is filed as Exhibit 1.01 to this Form SD.

Section 2 – Exhibits


Item 2.01 Exhibits

The following exhibits are filed as part of this Form SD.

Exhibit 1.01 – Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.


Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the duly authorized undersigned.


    ADTRAN, Inc.
Date: May 31, 2016    

/s/ Roger D. Shannon

    Roger D. Shannon
    Senior Vice President of Finance,
    Chief Financial Officer,
    Corporate Treasurer and Secretary
    (Principal Financial Officer)