Company: SNY
Filing Date: 2025-06-27
Form Type: 11-K
Source: 0001104659-25-063672
Chunk: 0

Company: Sanofi
Filing Date: 2025-06-27
Form: 11-K
Chunk 0
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<div align='center'>United States
Securities and Exchange Commission
Washington, D.C. 20549

Form 11-K</div>

(Mark One)

| x | Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934. |

For the fiscal year ended December 31, 2024

<div align='center'>OR</div>

| x | Transition Report Pursuant to Section 15(d) of the Securities 
 Exchange Act of 1934. (No fee required)                       |

For the transition period from _________________ to _________________

Commission File Number 1-18378

| A. | Full title of the plan and the address of the plan, if different from that of the issuer named below: |

<div align='center'>Sanofi Puerto Rico Group Savings Plan
100 Morris Street
Morristown, NJ 07960</div>

| B. | Name of issuer of the securities held pursuant to the plan and the address of its principal executive office: |

<div align='center'>SANOFI

54, rue La Boétie
75008 Paris, France</div>

Sanofi Puerto Rico Group Savings Plan

FinancialStatements and SupplementalSchedule

December 31, 2024 and 2023

With Report of Independent Registered Public Accounting Firm

Sanofi Puerto Rico Group Savings Plan

Table of Contents

| REPORT OF INDEPENDENT REGISTERED               
 PUBLIC ACCOUNTING FIRM                         
 FINANCIAL STATEMENTS AS OF AND                 
 FOR THE YEARS ENDED DECEMBER 31, 2024 and 2023 |     |  2-3 |
|:-----------------------------------------------|:----|-----:|
| Statements of Net                              
 Assets Available for Benefits                  |     |    4 |
| Statements of Changes in Net                   
 Assets Available for Benefits                  |     |    5 |
| Notes to the Financial Statements              |     | 6-17 |
| SUPPLEMENTAL SCHEDULE *                        |     |      |
| Schedule H, Line 4i –                          
 Schedule of Assets (Held at End of Year)       |     |   18 |
| SIGNATURES                                     |     |   19 |
| EXHIBIT                                        |     |      |

| 23.1 | Consent of Independent Registered Public Accounting Firm |

| * | Other schedules required by Section 2520.103-10 of the Department of Labor Rules and Regulations for Reporting                     
 and Disclosure under the Employee Retirement Income Security Act