Amendment to Employment Agreement for CTO
On August 10, 2026, ADTRAN Holdings, Inc. amended the employment agreement for its Chief Technology Officer (CTO), Christoph Glingener. The amendment extends his employment through December 31, 2026, maintaining his annual base salary of β¬400,000. He remains eligible for an annual incentive cash bonus targeted at 60% of his base salary and annual grants of time-based restricted stock units (RSUs) targeted at 75% of his base salary, with RSUs capped at β¬903,729. Additionally, Dr. Glingener will receive three-year financial plan performance stock units (PSUs) with a target grant size of β¬903,729, based on Adjusted EBIT, capped at β¬2,000,000. His total annual remuneration is capped at β¬2,800,000. These changes align his compensation with the company's new remuneration system for 2026.