Sanofi : Conversion of Kiadis to a private limited liability company postponed until completion of statutory buy-out proceedings

Press Release

Source: Sanofi (EURONEXT: SAN) (NASDAQ: SNY)

This is a joint press release by Sanofi Foreign Participations B.V. (the "Offeror"), Sanofi ("Sanofi") and Kiadis Pharma N.V. ("Kiadis") in connection with the recommended public offer by the Offeror for all the issued and outstanding ordinary shares in the capital of Kiadis (the "Offer"). This announcement does not constitute an offer, or any solicitation of any offer, to buy or subscribe for any securities. Any offer will be made only by means of the offer memorandum dated 10 February 2021 (the "Offer Memorandum"), approved by the Dutch Authority for the Financial Markets (Autoriteit Financiële Markten) on 10 February 2021 and recognized by the Belgian Authority for the Financial Markets (Autoriteit voor Financiële Diensten en Markten) on 11 February 2021. This announcement is not for release, publication or distribution, in whole or in part, in or into, directly or indirectly, any jurisdiction in which such release, publication or distribution would be unlawful. Terms not defined in this press release will have the meaning as set forth in the Offer Memorandum.

Conversion of Kiadis to a private limited liability company postponed until completion of statutory buy-out proceedings

PARIS and AMSTERDAM - July 15, 2021 - The Offeror, Sanofi (Euronext: SAN and

NYSE: SNY) and Kiadis today announce that the conversion of Kiadis from a public limited liability company (naamloze vennootschap) into a private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) shall be postponed until the Offeror has completed the statutory buy-out proceedings.

In Section 6.13 of the Offer Memorandum the Offeror stated that it has the intention to amend the articles of association of Kiadis following termination of the listing of the Kiadis shares on Euronext Amsterdam and Euronext Brussel (which took place on 25 May 2021). On 30 March 2021, the general meeting of Kiadis adopted a shareholders' resolution to amend the articles of association as soon as possible following delisting. Upon reflection, the Offeror and Kiadis have decided to postpone the conversion of Kiadis into a private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) until the buy-out proceedings have been completed.

Announcements

Any announcement contemplated by the Offer Memorandum will be issued by press release. Any press release issued by the Offeror will be made available on the website of

the Offeror (www.sanofi.com). Any press release issued by Kiadis will be made available on the website (www.kiadis.com).

Subject to any applicable requirements of the applicable rules and without limiting the manner in which the Offeror may choose to make any public announcement, the Offeror will have no obligation to communicate any public announcement other than as described above.

Offer Memorandum, Position Statement and further information

This announcement contains selected, condensed information regarding the Offer and does not replace the Offer Memorandum and/or the position statement by Kiadis dated

12 February 2021 (the "Position Statement"). The information in this announcement is not complete and additional information is contained in the Offer Memorandum and the Position Statement.

Digital copies of the Offer Memorandum are available on the website of the Offeror (www.sanofi.com) and digital copies of the Position Statement are available on the website of Kiadis (www.kiadis.com). Such websites do not constitute part of, and are not incorporated by reference into, the Offer Memorandum. Copies of the Offer Memorandum and the Position Statement are on request also available free of charge at the offices of Kiadis and the Settlement Agent at the addresses below:

Kiadis	Settlement Agent
Kiadis Pharma N.V.	ING Bank N.V.
Paasheuvelweg 25A	Bijlmerdreef 106
1105 BP Amsterdam	1102 CT Amsterdam
The Netherlands	The Netherlands

About Kiadis

Founded in 1997, Kiadis is committed to developing innovative cell-based medicines for patients with life- threatening diseases. With headquarters in Amsterdam, The Netherlands, and offices and activities across the United States, Kiadis is reimagining medicine by leveraging the natural strengths of humanity and our collective immune system to source the best cells for life.

Disclaimer

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The information in the press release is not intended to be complete. This announcement is for information purposes only and does not constitute an offer, or any solicitation of any offer, to buy or subscribe for any securities.

The distribution of this press release may, in some countries, be restricted by law or regulation. Accordingly, persons who come into possession of this document should inform themselves of and observe these restrictions. To the fullest extent permitted by applicable law, Sanofi and Kiadis disclaim any responsibility or liability for the violation of any such restrictions by any person. Any failure to comply with these restrictions may constitute a violation of the securities laws of that jurisdiction. Neither Sanofi, nor Kiadis, nor any of their advisors assumes any responsibility for any violation by any of these restrictions. Any Kiadis shareholder who is in any doubt as to his or her position should consult an appropriate professional advisor without delay.

About Sanofi

Sanofi is dedicated to supporting people through their health challenges. We are a global biopharmaceutical company focused on human health. We prevent illness with vaccines, provide innovative treatments to fight pain and ease suffering. We stand by the few who suffer from rare diseases and the millions with long-term chronic conditions.

With more than 100,000 people in 100 countries, Sanofi is transforming scientific innovation into healthcare solutions around the globe.

Media Relations Contacts		Investor Relations Contacts Paris
Sally Bain		Eva Schaefer-Jansen
Tel: [phone]		Arnaud Delepine
[e-mail]		Nathalie Pham

Investor Relations Contacts North America

Felix Lauscher

Fara Berkowitz

Suzanne Greco

IR main line:

Tel.: [phone] [e-mail]

https://www.sanofi.com/en/investors/contact

Sanofi Forward-Looking Statements

This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements are statements that are not historical facts. These statements include projections and estimates and their underlying assumptions, statements regarding plans, objectives, intentions and expectations with respect to future financial results, events, operations, services, product development and potential, and statements regarding future performance. Forward-looking statements are generally identified by the words "expects", "anticipates", "believes", "intends", "estimates", "plans" and similar expressions. Although Sanofi's management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Sanofi, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include among other things, risks related to Sanofi's ability to complete the acquisition on the proposed terms or on the proposed timeline, the possibility that competing offers will be made, other risks associated with executing business combination transactions, such as the risk that the businesses will not be integrated successfully, that such integration may be more difficult, time-consuming or costly than expected or that the expected benefits of the acquisition will not be realized, the uncertainties inherent in research and development, future clinical data and analysis, including post marketing, decisions by regulatory authorities, such as the FDA or the EMA, regarding

whether and when to approve any drug, device or biological application that may be filed for any such product candidates as well as their decisions regarding labelling and other matters that could affect the availability or commercial potential of such product candidates, the fact that product candidates if approved may not be commercially successful, the future approval and commercial success of therapeutic alternatives, Sanofi's ability to benefit from external growth opportunities, to complete related transactions and/or obtain regulatory clearances, risks associated with intellectual property and any related pending or future litigation and the ultimate outcome of such litigation, trends in exchange rates and prevailing interest rates, volatile economic and market conditions, cost containment initiatives and subsequent changes thereto, and the impact that COVID-19 will have on us, our customers, suppliers, vendors, and other business partners, and the financial condition of any one of them, as well as on our employees and on the global economy as a whole. Any material effect of COVID-19 on any of the foregoing could also adversely impact us. This situation is changing rapidly and additional impacts may arise of which we are not currently aware and may exacerbate other previously identified risks. The risks and uncertainties also include the uncertainties discussed or identified in the public filings with the SEC and the AMF made by Sanofi, including those listed under "Risk Factors" and "Cautionary Statement Regarding Forward-Looking Statements" in Sanofi's annual report on Form 20-F for the year ended December 31, 2020. Other than as required by applicable law, Sanofi does not undertake any obligation to update or revise any forward- looking information or statements.