Company: SNY
Filing Date: 2025-10-29
Form Type: 424B5
Source: 0001193125-25-255563
Chunk: 112

Company: Sanofi
Filing Date: 2025-10-29
Form: 424B5
Chunk 112
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 you invest in debt securities and are a U.S. holder. For this purpose, you will be a U.S. holder if you are an individual who is a citizen or resident of the United States, an entity treated as a
corporation for U.S. federal income tax purposes that is organized under the laws of the United States or any State thereof, an estate whose income is subject to United States federal income tax regardless of its source, a trust if a United States
court can exercise primary supervision over the trust’s administration and one or more United States persons are authorized to control all substantial decisions of the trust, or any other person that is subject to U.S. federal income tax on a
net income basis in respect of an investment in the debt securities. This summary deals only with U.S. holders that hold debt securities as capital assets (generally, property held for investment). It does not address considerations that may be
relevant to you if you are an investor that is subject to special tax rules, such as a bank, thrift, real estate investment trust, regulated investment company, insurance company, dealer in securities or currencies, a holder that uses mark-to-market treatment, a person that will hold debt securities as a hedge against currency risk or as a position in a “straddle” or conversion or other
integrated transaction, a tax-exempt organization, partnership or other entity classified as a partnership for U.S. federal income tax purposes (or investors thereof), a person liable for to the alternative
minimum tax, a person subject to special rules for accrual basis taxpayers under Section 451(b) of the U.S. Internal Revenue Code of 1986, as amended (the “Code”) or a person whose “functional currency” is not the U.S.
dollar.

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This description is based on the Code, its legislative history, existing and proposed U.S.
Treasury Regulations, U.S. Internal Revenue Service administrative pronouncements and judicial decisions, all as available and in effect on the date hereof and all of which may change. Any change could apply retroactively and could affect the
continued validity of this summary. This summary assumes that the securities will be characterized as debt rather than equity for U.S. federal income tax purposes and that U.S. holders will treat the securities as such. In addition, this summary
does not address all aspects of U.S. federal income taxes, nor does it address all tax considerations that may be relevant to a U.S. holder in light of such holder’s