ADTRAN Holdings, Inc. reports third quarter 2025 financial results Huntsville, Alabama, USA. — Nov. 3, 2025 — ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) ("ADTRAN Holdings" "ADTRAN" or the "Company") today announced its unaudited financial results for the third quarter ended September 30, 2025. ADTRAN Holdings Chairman and Chief Executive Officer Tom Stanton stated, "Our third quarter revenue and operating margin were above the midpoint of our expectations, with robust sequential and year-over-year gr ...