Hellenic Exchanges-Athens Stock Exchange S.A.

Major Shareholding Notification • Nov 21, 2025

Announcement

Trade notifications on ENX shares (Law 3461/2006)

21 November 2025 – Société Générale S.A. informed the Company in writing that it carried out the following transactions in shares of the Euronext NV (symbol: ENX, ISIN NL0006294274):

No	Date of notification to ATHEX	Transaction date	Туре	Quantity	Financial instrument
1	20.11.2025	19.11.2025	Sell	4,398	ENX shares
2	20.11.2025	19.11.2025	Reduce borrowing (collateral)	101,736	ENX shares
3	20.11.2025	19.11.2025	Reduce cash settlement Options (Call & Put)	3,190	ENX share equivalents

Following the above transactions, Société Générale S.A. holds 1.73% of the voting rights of Euronext NV.

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.