Hellenic Exchanges-Athens Stock Exchange S.A.

Major Shareholding Notification • Oct 17, 2025

Announcement

Trade notifications on EXAE shares (Law 3461/2006)

17 October 2025 - MORGAN STANLEY informed the Company in writing that it carried out the following transactions in shares of the Company (symbol: EXAE, ISIN GRS395363005):

No	Date of notification to ATHEX	Transaction date	Туре	Quantity	Financial instrument	Total value (euro)
1	16.10.2025	15.10.2025	Buy	145,919	EXAE shares	950,119.08
2	16.10.2025	15.10.2025	Sell	35,834	EXAE shares	234,057.78
3	17.10.2025	16.10.2025	Buy	331,094	EXAE shares	2,121,529.41
4	17.10.2025	16.10.2025	Sell	9,841	EXAE shares	63,213.47

Following the above transactions, MORGAN STANLEY indirectly holds 2.65% of the voting rights of the Company, compared to 1.56% based on the previous notification.

The chains of controlled undertakings through which the voting rights are effectively held, starting with the ultimate controlling entity, are as follows:

• Morgan Stanley
• Morgan Stanley International Holdings Inc
• Morgan Stanley International Limited
• Morgan Stanley Investments (UK)
• Morgan Stanley & Co International plc
• Morgan Stanley
• Morgan Stanley Capital Management, LLC
• Eaton Vance Management
• Boston Management and Research

The notification of EXAE 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.