Euronext N.V.

Transaction in Own Shares • Oct 6, 2015

Amsterdam +31.20.721.4488 Brussels +32.2.620.15.50 +33.1.70.48.24.17 Lisbon +351.210.600.614 Paris +33.1.70.48.24.45

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EURONEXT ANNOUNCES SHARE REPURCHASE

Amsterdam, Brussels and Paris - 5 October 2015 – Euronext today announced its repurchase of 317,195 shares as part of the first tranche of its share repurchase programme, which aims to hedge price risk arising from the past employee share plans. A second tranche will be initiated soon to cover the LTI plan for 2015.

The programme has been implemented by an independent agent since it started on 3 August 2015. The 317,195 shares were repurchased at an average price of €39.7321 per share for a total consideration of €12,602,834.78.

CONTACTS -

Stéphanie Bia (Investor Relations): + 33 1 70 48 24 17; sbia@euronext.com Caroline Nico (Press): +33 1 70 48 24 41; cnico@euronext.com

About Euronext

Euronext is the primary exchange in the Euro zone with more than 1 300 issuers worth €3.1 trillion in market capitalisation, an unmatched blue-chip franchise consisting of 24 issuers in the EURO STOXX 50® benchmark and a strong, diverse domestic and international client base.

Euronext operates regulated and transparent equity and derivatives markets. Its total product offering includes Equities, Exchange Traded Funds, Warrants & Certificates, Bonds, Derivatives, Commodities and Indices. Euronext also leverages its expertise in running markets by providing technology and managed services to third parties. Euronext operates regulated markets, Alternext and the Free Market; in addition it offers EnterNext, which facilitates SMEs' access to capital markets.

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