Core Viewpoint - ADTRAN Holdings, Inc. plans to offer $150 million in convertible senior notes due 2030 in a private offering to qualified institutional buyers [1] Group 1 - The offering is subject to market and other conditions [1] - The notes will be offered under Rule 144A of the Securities Act of 1933 [1] - The company expects to grant the initial purchasers a 30-day option to purchase additional notes [1]