ADTRAN Holdings, Inc.

Director's Dealing • Nov 20, 2025

News Details

Directors’ Dealings | 20 November 2025 15:21

Adtran Holdings, Inc.: Thomas R. Stanton, Acquisition of 4,209 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) due to the vesting of 7,564 Restricted Stock Units (granted November 17, 2021) pursuant to the 2020 Employee Stock Incentive Plan. 3,355 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) were withheld by ADTRAN Holdings, Inc. to cover the taxes.

Notification and public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them

20.11.2025 / 15:20 CET/CEST

The issuer is solely responsible for the content of this announcement.

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1. Details of the person discharging managerial responsibilities / person closely associated

a) Name

Title:
First name:	Thomas R.
Last name(s):	Stanton

2. Reason for the notification

a) Position / status

Position:	Chief Executive Officer and Chairman of the Board of Directors

b) Initial notification

3. Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a) Name

Adtran Holdings, Inc.

b) LEI

549300VV36J86CRRWF77

4. Details of the transaction(s)

a) Description of the financial instrument, type of instrument, identification code

Type:	Share
ISIN:	US00486H1059

b) Nature of the transaction

Acquisition of 4,209 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) due to the vesting of 7,564 Restricted Stock Units (granted November 17, 2021) pursuant to the 2020 Employee Stock Incentive Plan. 3,355 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059) were withheld by ADTRAN Holdings, Inc. to cover the taxes.

c) Price(s) and volume(s)

Price(s)	Volume(s)
7.33 USD	30,851.97 USD

d) Aggregated information

Price	Aggregated volume
7.33 USD	30,851.97 USD

e) Date of the transaction

17/11/2025; UTC−6

f) Place of the transaction

Outside a trading venue

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20.11.2025 CET/CEST The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.

View original content: EQS News

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Language:	English
Company:	Adtran Holdings, Inc.
	901 Explorer Boulevard
	35806 Huntsville
	United States
Internet:	www.adtran.com

End of News	EQS News Service

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101956  20.11.2025 CET/CEST