ADTRAN Holdings Inc (ADTN)

Form 8-K - Current report

Adtran Holdings, Inc. Appoints Anne DelSanto to Board of Directors

Adtran Holdings, Inc. (NASDAQ: ADTN and FSE: QH9), a leading global provider of networking and communications solutions, today announced the...

Adtran resolves long-running patent litigation, reinforcing commitment to defend innovation

News summary: Non-practicing entity litigation continues to create costly, time-consuming pressure across the technology industry Adtran has...

euNetworks launches new quantum-safe private connectivity service powered by Adtran’s encrypted optical transport technology

News summary: Developed by euNetworks to deliver the highest levels of protection for sensitive data moving...

Form 4 - Statement of changes in beneficial ownership of securities

Form 144 - Report of proposed sale of securities

Form 8-K - Current report

Adtran expands SDG 8700 Series to deliver Wi-Fi 7 at scale

News summary: Service providers are replacing aging in-home Wi-Fi equipment as expectations rise and...

Form SD - Specialized disclosure report

Form 4 - Statement of changes in beneficial ownership of securities

Form 144 - Report of proposed sale of securities

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Form 8-K - Current report

ADTRAN Holdings, Inc. reports first quarter 2026 financial results

ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” “ADTRAN” or the “Company”) today announced its unaudited financial results...

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material