ADTRAN (US:ADTN)2025-07-16 19:27ADTRAN Holdings, Inc. Form 8-K (July 16, 2025) Item 2.02 Results of Operations and Financial Condition ADTRAN Holdings, Inc. announced preliminary Q2 2025 revenue on July 16, 2025 - ADTRAN announced its preliminary revenue for the fiscal quarter ended June 30, 20256 - The announcement was made via a press release on July 16, 2025, which is attached as Exhibit 99.16 Item 7.01 Regulation FD Disclosure ADTRAN issued an ad hoc announcement in Germany on July 16, 2025, disclosing preliminary Q2 2025 revenue to comply with EU Market Abuse Regulation - Due to its listing on the Frankfurt Stock Exchange, ADTRAN is subject to German and European securities laws, specifically the Market Abuse Regulation (MAR)7 - MAR requires real-time disclosure if management's expected results significantly deviate from prior guidance or analyst consensus7 - In compliance with MAR, ADTRAN published an ad hoc announcement in Germany on July 16, 2025, disclosing preliminary revenue for Q2 2025. This announcement is attached as Exhibit 99.278 Item 9.01 Financial Statements and Exhibits This section lists documents filed with the Form 8-K, including a press release, ad hoc notification, and interactive data file List of Exhibits | Exhibit Number | Description | | :--- | :--- | | 99.1 | Press Release dated July 16, 2025 | | 99.2 | Ad Hoc Notification dated July 16, 2025 (English translation) | | 104 | Cover Page Interactive Data File – the cover page iXBRL tags are embedded within the Inline XBRL document |