Altamir — M&A Activity 2025

Sep 12, 2025

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PRESS RELEASE OF SEPTEMBER 12, 2025 REGARDING THE AVAILABILITY OF THE RESPONSE DOCUMENT PREPARED BY THE COMPANY

IN THE CONTEXT OF THE SIMPLIFIED TENDER OFFER

FOR THE ORDINARY SHARES OF ALTAMIR INITIATED BY

Amboise SAS

This press release has been prepared by ALTAMIR and is published on September 12, 2025, in accordance with the provisions of Article 231-27, 3° of the General Regulation of the Autorité des marchés financiers ("AMF").

Pursuant to Article L. 621-8 of the French Monetary and Financial Code and Article 231-26 of the AMF General Regulation, the AMF, by virtue of its clearance decision dated September 11, 2025, relating to the simplified tender offer for the securities of ALTAMIR (the "Offer"), has affixed visa no. 25-369 to the response document prepared by ALTAMIR (the "Response Document").

In accordance with Article L. 621-8-1, I of the French Monetary and Financial Code, the visa was granted after the AMF verified "whether the document is complete and understandable, and whether the information it contains is consistent." The visa does not imply approval of the merits of the transaction, nor authentication of the accounting and financial information presented.

The Response Document approved by the AMF is available on the websites of the AMF (www.amffrance.org) and ALTAMIR (www.altamir.fr) and copies may be obtained free of charge from:

ALTAMIR

61, rue des Belles Feuilles 75116 PARIS

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Ce communiqué ne constitue pas une offre d'acquérir des titres.

The Response Document must be read in conjunction with all other documents published in connection with the Offer.

In particular, in accordance with Article 231-28 of the AMF General Regulation, information relating to the legal, financial and accounting characteristics of ALTAMIR will be filed with the AMF and made available to the public, under the same conditions, no later than the day preceding the opening of the simplified tender offer.

A press release will be published no later than the day preceding the opening of the tender offer to inform the public of the terms and conditions of availability of such information.

Prior to the opening of the Offer, the AMF and Euronext will respectively publish a notice of opening and timetable, and a notice announcing the terms and timetable of the Offer.

Disclaimer

This press release has been prepared for information purposes only. It does not constitute an offer to the public. The dissemination of this press release, the Offer and its acceptance may be subject to specific regulations or restrictions in certain jurisdictions. The Offer is not directed at, and will not be accepted from or on behalf of, persons subject to such restrictions, either directly or indirectly, and this press release is not intended for distribution in such jurisdictions. Accordingly, persons in possession of this press release are required to inform themselves of any local restrictions that may apply and to comply with them.

ALTAMIR disclaims any liability for any violation of such restrictions by any person.