December 31, 2025 · Form 4 insider transaction
Walker Kathryn A bought 13,809 shares of ADTRAN Holdings, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 5 days after the transaction.
Represents a restricted stock award grant that vests in full on the first anniversary of the date of grant.