Company: SNY
Filing Date: 2025-10-27
Form Type: 424B5
Source: 0001193125-25-250786
Chunk: 119

Company: Sanofi
Filing Date: 2025-10-27
Form: 424B5
Chunk 119
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 premium on a foreign currency debt security, you should calculate the
amortization of the premium in the foreign currency. Premium amortization deductions attributable to a period reduce interest income in respect of that period, and therefore should be translated into U.S. dollars at the rate that you use for
interest payments in respect of that period. Exchange gain or loss will be generally realized with respect to amortized premium on a foreign currency debt security based on the difference between the spot exchange rate computed on the date or dates
the premium is amortized against interest payments on the debt security and the spot exchange rate on the date the holder acquired the debt security.

If you do not elect to amortize premium, the amount of premium should be included in your tax basis in the debt security. Therefore, if you do
not elect to amortize premium and you hold the debt security to maturity, you generally will be required to treat the premium as capital loss when the debt security matures.

Market Discount

If you
purchase a debt security at a price that is lower than the debt security’s remaining redemption amount (or in the case of an Original Issue Discount Debt Security, the debt security’s adjusted issue price), by 0.25% or more of the
remaining redemption amount (or adjusted issue price), multiplied by the number of remaining whole years to maturity, the debt security will generally be considered to bear “market discount” in your hands. In this case, any gain that you
realize on the disposition of the debt security generally will be treated as ordinary interest income to the extent of the market discount that accrued on the debt security during your holding period. In addition, you may be required to defer the
deduction of a portion of the interest paid on any indebtedness that you incurred to purchase or to carry the debt security. In general, market discount will be treated as accruing ratably over the term of the debt security, or, at your election,
under a constant yield method. You must accrue market discount on a foreign currency debt security in the specified currency. The amount that you will be required to include in income in respect of accrued market discount will be the U.S. dollar
value of the accrued amount, generally calculated at the spot exchange rate in effect on the date that you dispose of the debt security.

You may elect to include market discount in gross income currently as it accrues (on either a ratable or constant yield basis), in lieu of
treating a portion of any gain realized on a sale of