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AI brief of an SEC Form 8-K · ADTRAN Holdings, Inc. (ADTN)

ADTRAN Holdings adds Christian Terlinde, former CFO, to its Board of Directors

Neutral Impact 2 of 5 leadership Written later

ADTRAN Holdings expanded its Board from seven to eight directors and elected Dr. Christian Terlinde as an independent director effective October 27, 2026. The filing describes him as Group Chief Financial Officer of Flender International GmbH and a former CFO of publicly listed JOST Werke SE, which gives the Board added finance and international experience.

Key points

  • Board size increased from seven to eight directors by unanimous vote on October 27, 2026
  • Dr. Christian H. Terlinde is currently Group Chief Financial Officer of Flender International GmbH
  • Board determined he qualifies as an independent director under Nasdaq listing standards
  • Director compensation follows standard non-employee director arrangements described in the March 27, 2026 proxy statement

The filing

CompanyADTRAN Holdings, Inc. (ADTN)
Form8-K, current report
Filed with the SECOct 29, 2026, 5:25 PM ET
Accession number0001193125-26-438101

Items reported: 5.02 Director / Officer Change8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 8:29 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 29, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.