SCHEDULE 13G/A

ADTRAN Holdings Inc

Common Stock, par value $0.01 · CUSIP: 00486H105

Event date: 2025-03-31

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Divisar Partners QP, L.P.

  Shares: 3,192,527.00 · Class: 4.0%

• Divisar Capital Management LLC

  Shares: 3,428,863.00 · Class: 4.3%

• Steven Baughman

  Shares: 3,428,863.00 · Class: 4.3%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.