Hellenic Exchanges-Athens Stock Exchange S.A.

Transaction in Own Shares • Aug 11, 2025

Announcement

Trade notifications on Euronext shares (Law 3461/2006)

11 August 2025 – The CAPITAL GROUP COMPANIES, Inc. ("CGC") informed the Company in writing that it carried out the following Euronext share (symbol ENX, ISIN NL0006294274) transactions:

No	Date of notification to ATHEX	Transaction date	Type	Quantity	Financial instrument	Total value (euro)
1	07.08.2025	06.08.2025	Buy	1,116	ENX common stock	156,463.20
2	11.08.2025	08.08.2025	Buy	1,422	ENX common stock	200,502.00
3	11.08.2025	08.08.2025	Buy	156	ENX common stock	22,113.00
4	11.08.2025	08.08.2025	Buy	8	ENX common stock	1,132.00

Following the above transactions, CGC holds 5.196% of Euronext shares.

The notification of ENX trades takes place in accordance with art. 24 of law 3461/2006 due to the tender offer by Euronext to acquire all shares of the Company (EXAE) through a share exchange.