ADTRAN Holdings, Inc. Appoints Dr. Christian H. Terlinde to Board of Directors

HUNTSVILLE, Ala.--(BUSINESS WIRE)--ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” or the “Company”), a leading global provider of networking and communications solutions, today announced the appointment of Dr. Christian H. Terlinde as an independent member of its Board of Directors effective October 27, 2026. Dr. Terlinde brings more than two decades of senior financial leadership experience at large, multinational manufacturing companies, with operating experience spannin.

Business Wire • 2 hours ago

ADTRAN Holdings, Inc. to release third quarter 2026 financial results on November 2, 2026

HUNTSVILLE, Ala.--(BUSINESS WIRE)--ADTRAN Holdings, Inc. (NASDAQ: ADTN and FSE: QH9) (“ADTRAN Holdings” or the “Company”) announced today that the Company will release its financial results for the third quarter 2026 after the market close on Monday, November 2, 2026, at https://investors.adtran.com/. The Company will conduct a conference call on Tuesday, November 3, 2026, to discuss the results for the quarter. What: ADTRAN Holdings, Inc. Earnings Call When: 7:30 a.m. Central Time (2:30 p.m. C.

Business Wire • Oct 19, 2026

Adtran launches Mosaic One Agents to help teams easily scale operations

HUNTSVILLE, Ala.--(BUSINESS WIRE)-- #5G--Adtran today launched Mosaic One Agents, a suite of AI agents designed to help organizations scale expertise across network management, customer care and business operations. Built on Mosaic One Fabric, it gives role-based agent teams access to data from Adtran and third-party networks, enabling them to investigate issues, coordinate work across teams and drive issues through to resolution. By handling time-consuming investigation, coordination and process tas.

Business Wire • Oct 8, 2026

Ciena vs. ADTRAN: Which Optical Networking Stock is the Better Buy?

CIEN's surging backlog and optical demand contrast with ADTRAN's supply, margin and timing pressures as AI networking drives opportunities.

Zacks Investment Research • Sep 22, 2026

Adtran showcases open optical networking for AI infrastructure at OIF's ECOC 2026 interop demo

MÁLAGA, Spain--(BUSINESS WIRE)-- #5G--Adtran today announced its participation in OIF's live multi-vendor interoperability demo at ECOC 2026, taking place September 21 to 23 in Málaga, Spain. Bringing together 39 member companies, the showcase highlights interoperable optical transport, pluggable coherent transceivers and network control technologies in a multi-vendor environment. Adtran is contributing 100Gbit/s, 400Gbit/s and 800Gbit/s ZR+ pluggables, its FSP 3000 open line system (OLS) operating a.

Business Wire • Sep 17, 2026

BMC TV expands UK network for major sports broadcasts with Adtran and Fibre Technologies Ltd

LONDON--(BUSINESS WIRE)-- #5G--Adtran today announced that BMC TV has expanded its UK core network, harnessing Adtran technology to support coverage of major events, including the FIFA World Cup and extensive racecourse broadcasting across the UK. The new infrastructure strengthens BMC TV's packet edge, access and aggregation layers, enabling reliable distribution of live feeds across multiple locations with deterministic, low-latency performance. Designed to scale with growing broadcast demands, the.

Business Wire • Sep 15, 2026

Why Is ADTRAN Holdings (ADTN) Down 14.7% Since Last Earnings Report?

ADTRAN Holdings (ADTN) reported earnings 30 days ago. What's next for the stock?

Zacks Investment Research • Sep 2, 2026

Implied Volatility Surging for ADTRAN Stock Options

Investors need to pay close attention to ADTN stock based on the movements in the options market lately.

Zacks Investment Research • Aug 25, 2026

ADTRAN Holdings: Q2 Results Highlight Possible Headwinds

ADTRAN Holdings is rated Hold as it pivots toward optical networking, with hyperscaler and enterprise revenue growth offset by supply constraints. Q2 revenue missed guidance at $281.1M, with gross margin dropping to 40.7% and supply tightness impacting multiple product lines and near-term visibility. Optical Networking now drives 39% of revenue; customer diversification is improving, but new products offer limited near-term upside.

Seeking Alpha • Aug 14, 2026

Adtran launches Mosaic One Fabric, empowering operators to build custom AI agents and workflows

HUNTSVILLE, Ala.--(BUSINESS WIRE)-- #5G--Adtran today launched Mosaic One Fabric, an expansion of its Mosaic One software platform, enabling operators to create AI agents and workflows around their own operational priorities. Rather than being limited to predefined agents, fixed use cases or vendor-controlled ecosystems, operators can build and scale AI on their own terms using the data, tokens and models that best fit their business, with the token economics visible and under their control. Mosaic O.

Business Wire • Aug 6, 2026