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Shareholder structure

Shareholder Structure ADTRAN Holdings Inc.

As of 31 March, 2025

Total amount of shares outstanding 79,968,967 Date
Goldman Sachs 10.26% 18-Mar-25
Blackrock 10.42% 24-Mar-25
EGORA 7.95% 15-Jul-22
Morgan Stanley 5.42% 12-Mar-25
William Blair 4.50% 5-Feb-25
Vanguard 4.74% 21-Mar-24
Free Float 56.71%

Please note that the percentage of voting rights and instruments is derived from the relevant voting right notification and has been calculated on the basis of ADTRAN’s total number of voting rights (as published pursuant to Section 41 WpHG) as of the date of the relevant shareholder notification.