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

Company: Sanofi
Filing Date: 2025-10-29
Form: 424B5
Chunk 29
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 by a class of Affected Parties or the court could negatively and significantly impact the holders of notes and cause them to lose all or part of their investment, should they not be able to recover all or part of the amounts due to them by Sanofi S.A. You may be unable to recover in civil proceedings for U.S. securities laws violations. Sanofi is a limited liability company ( société anonyme) organized under the laws of France and most of our officers and directors reside outside of the United States. In addition, a substantial portion of our assets is located in France. Accordingly, it may be difficult for investors to obtain jurisdiction over us, our non-U.S.resident officers and directors in courts in the United States, as well as to obtain evidence from any French citizen or any individual being resident in France or any director, officer, representative, agent or employee of a legal person, having its registered office or an establishment in a territory of France, in connection with those actions and enforce in France judgments obtained in such actions in U.S. courts against us or them. In addition, we cannot assure you that civil liabilities predicated upon the federal securities laws of the United States will be enforceable in France. See “Enforceability of Certain Civil Liabilities” in the attached prospectus. S-20

CAPITALIZATION AND INDEBTEDNESS The following table sets forth our cash and cash equivalents, short term debt, including current portion of long term debt and our capitalization as of September 30, 2025 (prepared on the basis of International Financial Reporting Standards as issued by the International Accounting Standards Board (“IFRS”)), as adjusted to reflect the issuance and sale of the notes after deducting underwriting discounts and commissions and estimated offering expenses.

|                                                               |     | At September 30, 2025 |        |     |                 |        |
|:--------------------------------------------------------------|:----|:----------------------|-------:|:----|:----------------|-------:|
|                                                               |     | Actual                |        |     | As adjusted(1)  |        |
|                                                               |     | EUR in millions       |        |     | EUR in millions |        |
| (A) Cash and cash                                             
 equivalents(2)                                                |     |                       |  8,906 |     |                 | 11,471 |
| (B) Short-term debt, and current portion of long-term debt(3) |     |                       |  8,202 |     |                 |