Company: SNY
Filing Date: 2025-10-29
Form Type: 424B5
Source: 0001193125-25-255563
Chunk: 65

Company: Sanofi
Filing Date: 2025-10-29
Form: 424B5
Chunk 65
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 or prediction as to the direction or magnitude of any effect that the transactions described above may have on the prices of the notes. In addition, neither we nor any of the underwriters make any representation that the
representatives will engage in these transactions or that these transactions, once commenced, will not be discontinued without notice.

Settlement and Delivery

It is expected that delivery of the notes will be made against payment on November 3, 2025 (such settlement being referred to
as “T+5”). Under Rule 15c6-1 under the Securities Exchange Act of 1934, trades in the secondary market are required to settle in one business day, unless the parties to any such trade expressly
agree otherwise. Accordingly, purchasers who wish to trade notes prior to the delivery of the notes hereunder will be required, by virtue of the fact that the notes initially settle in T+5, to specify an alternate settlement arrangement at the time
of any such trade to prevent a failed settlement. Purchasers of the notes who wish to trade the notes prior their date of delivery hereunder should consult their advisors.

Other Relationships

The underwriters and
their affiliates have provided from time to time, and expect to provide in the future, investment and commercial banking and financial advisory services (including entering into swap arrangements) to Sanofi and its affiliates in the ordinary course
of business, for which they have received and may continue to receive customary fees and commissions.

In addition, in the ordinary course
of their business activities, the underwriters and their affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for
their own account and for the accounts of their customers. Such investments and securities activities may involve securities and/or instruments of ours or our affiliates. To the extent that the underwriters or their affiliates have a lending
relationship with us, certain of the underwriters or their affiliates routinely hedge, and certain other of those underwriters or their affiliates may hedge, their credit exposure to us consistent with their customary risk management policies.
Typically, such underwriters and their affiliates would hedge such exposure by entering into transactions which consist of either the purchase of credit default swaps or the creation of short positions in our securities, including potentially the
notes offered hereby. Any such short positions could adversely affect future trading prices of the notes offered hereby. The underwriters and their affiliates may also make investment recommendations and/or publish or express independent research
views in respect