Adtran Holdings, Inc.: Thomas R. Stanton, Acquisition of 40,000 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059)

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

12.11.2026 / 09:13 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 40,000 shares in ADTRAN Holdings, Inc. (ISIN US00486H1059)

c) Price(s) and volume(s)

Price(s)	Volume(s)
4.2900 USD	146,868.1500 USD
4.2850 USD	13,283.5000 USD
4.3000 USD	6,591.9000 USD
4.2950 USD	4,861.9400 USD

d) Aggregated information

Price	Aggregated volume
4.2901 USD	171,605.4900 USD

e) Date of the transaction

09/11/2026; UTC?5

f) Place of the transaction

Name:	Nasdaq
MIC:	XNAS

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12.11.2026 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
LEI Code:	549300VV36J86CRRWF77

End of News	EQS News Service

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107962  12.11.2026 CET/CEST