<p>BlackRock, Inc. has increased its total percentage of voting rights in ADTRAN Holdings Inc. from 12.06% to 12.34%, marking a rise of 0.28 percentage points. This change reflects a decrease in voting rights attached to shares from 7.08% to 6.70%, offset by an increase in voting rights through instruments from 4.98% to 5.65%. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. ADTRAN Holdings Inc. published the original content used to generate this news brief via EQS News, a service of EQS Group AG (Ref. ID: PVR_2203468_en), on September 24, 2025, and is solely responsible for the information contained therein. © Copyright 2025 - Public Technologies (PUBT)</p>

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<p>BlackRock, Inc. has increased its voting rights in ADTRAN Holdings Inc. from 12.06% to 12.34%, a rise of 0.28 percentage points. This change includes a decrease in voting rights from shares (7.08% to 6.70%) and an increase through instruments (4.98% to 5.65%).</p>

BlackRock, Inc. Increases Total Voting Rights in ADTRAN Holdings Inc. to 12.34%