Company: SNY
Filing Date: 2025-10-29
Form Type: 424B5
Source: 0001193125-25-255563
Chunk: 86

Company: Sanofi
Filing Date: 2025-10-29
Form: 424B5
Chunk 86
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 senior debt securities only. The terms of any series of subordinated debt securities will be contained in the supplemental subordinated debt indenture executed in connection with such series and described in a related prospectus supplement. This section summarizes the material provisions of the indenture and the debt securities as it relates to senior debt securities. However, because it is a summary, it does not describe every aspect of the indenture or the debt securities. This summary is subject to and qualified in its entirety by reference to all the provisions of the indenture. The indenture is also subject to the Trust Indenture Act of 1939. We describe below the meaning of only the more important terms. We also include references in parentheses to some sections of the indenture. Whenever we refer to particular sections or defined terms of the indenture in this prospectus or in the prospectus supplement, those sections or defined terms are incorporated by reference in the relevant discussion herein or in the prospectus supplement. We may issue as many distinct series of debt securities under the indenture as we wish. This section summarizes material terms of the debt securities that are common to all series, unless otherwise indicated in the prospectus supplement relating to a particular series. We may issue the debt securities as original issue discount securities, which are debt securities that are offered and sold at a substantial discount to their stated principal amount. ( Section 101) Special U.S. federal income tax, accounting and other considerations may apply to original issue discount securities. These considerations are discussed below under “Taxation of Debt Securities — United States Taxation.” The debt securities may also be issued as indexed securities or securities denominated in foreign currencies or currency units, as described in more detail in the prospectus supplement relating to any such debt securities. 11

Unless otherwise specified in a prospectus supplement, we may, without the consent of the holders of the debt securities of a series, issue debt securities of the same series as an outstanding series of debt securities. Any additional debt securities so issued will be issued with no more than de minimisoriginal issue discount for U.S. federal income tax purposes or be part of a qualified reopening for U.S. federal income tax purposes unless such additional securities are represented by a separate CUSIP number. In addition, the specific financial, legal and other terms particular to a series of debt securities are described in the prospectus supplement relating to the series. Those terms may vary from the terms described here. Accordingly, this summary is also subject to and qualified by reference to the description of