Skip to main content
ADTRAN Holdings, Inc. logo

ADTRAN Holdings, Inc. — Investor Relations & Filings

Ticker · ADTN ISIN · US00486H1059 LEI · 549300XWTHXJVGKWU616 F Manufacturing
Open in API
Filings indexed 2,238 across all filing types
Latest filing 2026-01-22 Director's Dealing
Country US United States of America
Listing F ADTN

About ADTRAN Holdings, Inc.

https://www.adtran.com/

ADTRAN Holdings, Inc. is a global provider of open, disaggregated networking and communications solutions. The company's portfolio includes hardware, software, and services designed for telecommunication service providers and other network operators. Its offerings encompass fiber broadband access, access and aggregation technologies, and open optical networking systems. These solutions enable the delivery of voice, data, video, and high-speed internet services to residential and business customers. ADTRAN also develops AI-powered software platforms, such as Mosaic One, to simplify network operations and management, providing end-to-end visibility and control from the network core to the subscriber premises.

Recent filings

Filing Released Lang Actions
4 Filing
Director's Dealing
2026-01-22 English
8-K - ADTRAN HOLDINGS, INC. (0000926282) (Filer)
Regulatory Filings
2026-01-21 English
Report Publication Announcement 2026
Report Publication Announcement Classification · 1% confidence The document is a short announcement (under 5,000 characters) from Adtran Holdings, Inc. that explicitly states it is a 'Preliminary announcement of the publication of quarterly reports'. It provides the scheduled disclosure dates for future financial reports rather than containing the financial reports themselves. According to the 'Menu vs Meal' rule, this is classified as a Report Publication Announcement (RPA).
2026-01-19 English
Major Shareholding Notification 2026
Major Shareholding Notification Classification · 1% confidence The document is a formal notification of major holdings, specifically detailing changes in voting rights held by BlackRock, Inc. in Adtran Holdings, Inc. It references 'Article 40, Section 1 of the WpHG' (German Securities Trading Act) and explicitly uses the header 'Notification of Major Holdings'. This aligns perfectly with the definition of a Major Shareholding Notification (MRQ), which tracks significant changes in share ownership levels.
2026-01-13 English
Major Shareholding Notification 2026
Major Shareholding Notification Classification · 1% confidence The document is a formal 'Notification of Major Holdings' regarding Adtran Holdings, Inc., filed by BlackRock, Inc. It explicitly references 'Article 40, Section 1 of the WpHG' (German Securities Trading Act) and details changes in voting rights and share ownership percentages. This is a standard regulatory disclosure for significant shareholding notifications, which falls under the 'Major Shareholding Notification' category.
2026-01-09 English
Adtran Holdings, Inc.: Nikos Theodosopoulos, Acquisition of 13,809 shares of restricted stock as part of Equity Incentive Compensation. The restrictions lapse upon vesting of the RSAs and unrestricted
Director's Dealing Classification · 1% confidence The document is a formal notification of a transaction involving a person discharging managerial responsibilities (a member of the Board of Directors) acquiring restricted stock. This is a classic 'Directors' Dealing' or 'Insider Trading' disclosure, which is explicitly categorized under the DIRS code.
2026-01-07 English

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.