Adtran Holdings, Inc.

Adtran Holdings, Inc.: Thomas R. Stanton, Acquisition of 111,312 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) due to the vesting of 153,218 Restricted Stock Units (granted July 13, 2022) …

Release according to Article 41 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

Adtran Holdings, Inc.: Ulrich Dopfer, Acquisition of 1,280 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) due to the vesting of 2,233 Restricted Stock Units (granted May 24, 2023) pursuant …

Adtran Holdings, Inc.: Christoph Glingener, Acquisition of 1,105 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) due to the vesting of 1,906 Restricted Stock Units (granted May 24, 2023) …

Release according to Article 41 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

Release according to Article 50 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

ADTRAN Holdings, Inc. reports first quarter 2024 financial results