Hellenic Exchanges-Athens Stock Exchange S.A.

Major Shareholding Notification • Nov 4, 2025

Announcement

Trade notifications on ENX shares (Law 3461/2006)

4 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	03.11.2025	31.10.2025	Buy	1,427	ENX shares
2	03.11.2025	31.10.2025	Decreasing borrowing (collateral)	4,619	ENX shares
3	03.11.2025	31.10.2025	Increase cash settlement Options (Call & Put)	2,503	ENX share equivalents
4	04.11.2025	03.11.2025	Buy	1.409	ENX shares
5	04.11.2025	03.11.2025	Increase cash settlement Options (Call)	1.039	ENX share equivalents

Following the above transactions, SOCIÉTÉ GÉNÉRALE S.A. holds 1.94% 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.