• ADTRAN Chief Revenue Officer James Denson Wilson Jr transferred 10,469 shares as a donation.
• Transaction dated May 22, 2026; executed outside a trading venue.
• Instrument: shares; price, volume not disclosed.

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 EQS News (Ref. ID: dd_105100_en) on May 26, 2026, and is solely responsible for the information contained therein.