Company: SNY
Filing Date: 2025-10-27
Form Type: 424B5
Source: 0001193125-25-250786
Chunk: 112

Company: Sanofi
Filing Date: 2025-10-27
Form: 424B5
Chunk 112
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 will decrease by the amount of any amortized premium and any payments other than
qualified stated interest made on the debt security. (The rules for determining these amounts are discussed below.)

If you purchase a
debt security that is denominated in a foreign currency, the cost to you (and therefore generally your initial tax basis) will generally be the U.S. dollar value of the foreign currency purchase price on the date of purchase calculated at the spot
exchange rate in effect on that date. If the foreign currency debt security is traded on an established securities market and you are a cash-basis taxpayer (or if you are an accrual-basis taxpayer that makes a special election), you will determine
the U.S. dollar value of the cost of the debt security by translating the amount of the foreign currency that you paid for the debt security at the spot exchange rate on the settlement date of your purchase. The amount of any subsequent adjustments
to your tax basis in a debt security in respect of foreign currency- denominated original issue discount, market discount and premium will be determined in the manner described below. If you convert U.S. dollars into a foreign currency and then
immediately use that foreign currency to purchase a debt security, you generally will not have any taxable gain or loss as a result of the conversion or purchase.

When you sell or exchange a debt security, or if a debt security that you hold is retired or otherwise disposed of, you generally will
recognize gain or loss equal to the difference between the amount you realize on the transaction (less any accrued qualified stated interest, which will be subject to tax in the manner described above under “— Payments or Accruals of
Interest”) and your tax basis in the debt security. If you sell or exchange a debt security for foreign currency, or receive foreign currency on the retirement of a debt security, the amount you will realize for U.S. tax purposes generally
will be the dollar value of the foreign currency that you receive, calculated at the spot exchange rate in effect on the date the foreign currency debt security is disposed of or retired. If you dispose of a foreign currency debt security that is
traded on an established securities market and you are a cash-basis U.S. holder (or if you are an accrual-basis holder that makes a special election), you will generally determine the U.S. dollar value of the amount realized by translating the
amount at the spot exchange rate on the settlement date of the sale, exchange or retirement. The special election described