<p>ADTRAN Holdings Inc. has announced an amendment to the employment agreement of Christoph Glingener, the company’s Chief Technology Officer and a member of the management board of Adtran Networks SE. The amendment extends Glingener’s contract through December 31, 2026, and increases his annual base salary to €400,000 starting October 1, 2025. Glingener will continue to be eligible for an annual incentive cash bonus award tied to total revenue and adjusted earnings before interest and taxes, with a target value equal to 60% of his base salary. He will also receive annual grants of time-based restricted stock units and performance stock units based on the company’s relative total shareholder return, each with a target value equal to 40% of his base salary. His total annual remuneration will remain capped at €2,800,000. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. ADTRAN Holdings Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001193125-25-315910), on December 11, 2025, and is solely responsible for the information contained therein. © Copyright 2025 - Public Technologies (PUBT) Original Document: here</p>

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<p>ADTRAN Holdings Inc. has extended CTO Christoph Glingener's contract through 2026 and increased his salary to €400,000 starting October 2025. He will receive bonuses tied to revenue and earnings, and stock units based on shareholder return, with total remuneration capped at €2,800,000.</p>

ADTRAN Holdings Raises CTO Christoph Glingener’s Salary and Extends Contract Through 2026