ADTRAN Holdings, Inc. - 8-K Filing
ADTRAN Holdings, Inc. expands Board of Directors with the appointment of Dr. Christian Terlinde as an independent director. (Items: 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Offi, 8.01 Other Events, 9.01 Financial Statements and Exhibits)
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