8-K

Date: May 30, 2023

ADTRAN Holdings, Inc.

/s/ Ulrich Dopfer

Ulrich Dopfer

Chief Financial Officer

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 23, 2023

ADTRAN Holdings, Inc.

(Exact name of Registrant as Specified in Its Charter)


Delaware	001-41446	87-2164282
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

901 Explorer Boulevard Huntsville, Alabama		35806-2807
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (256) 963-8000

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol

Name of exchange

on which registered

Common Stock, Par Value $0.01

ADTN

The NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

ADVA Optical Networking SE’s Chief Executive Officer Transition

On May 23, 2023, ADVA Optical Networking SE (“ADVA”), a majority-owned subsidiary of ADTRAN Holdings, Inc. (the “Company”), announced the planned transition of its Chief Executive Officer role. Specifically, Christoph Glingener, Chief Technology Officer of the Company, will step down as Chief Executive Officer (“CEO”) of ADVA effective June 30, 2023, at which time he will transition to his previous role of Chief Technology Officer (“CTO”) of ADVA. He will continue to serve as CTO of the Company. Thomas Stanton, President and CEO of the Company, will assume the position of CEO of ADVA effective July 1, 2023.

SIGNATURES

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

ADTRAN Holdings Inc. filed SEC Form 8-K: Leadership Update