Company: SNY
Filing Date: 2025-06-02
Form Type: SC TO-C
Source: 0001193125-25-133434
Chunk: 4

Company: Sanofi
Filing Date: 2025-06-02
Form: SC TO-C
Chunk 4
---
 report on Form 20-F for the
year ended December 31, 2024 and its other filings with the SEC and the current reports on Form 8-K, quarterly reports on Form 10-Q and annual reports on Form 10-K and other filings with the SEC filed by Blueprint. The forward-looking statements speak only as of the date hereof and, other than as required by applicable law, Sanofi and Blueprint do not undertake any
obligation to update or revise any forward-looking information or statements.

3

| Exhibit 
 No.     
 99.1    
 99.2    |     | Description                                                                                                        
 Post on employee portal to certain Sanofi employees from Brian Foard, dated June 2, 2025.                          
 Post on employee portal to Sanofi research and development organization from Houman Ashrafian, dated June 2, 2025. |
|:--------|:----|:-------------------------------------------------------------------------------------------------------------------|
| 99.3    |     | Social media posts on Sanofi’s LinkedIn and X accounts, dated June 2, 2025.                                        |
| 99.4    |     | Slide deck presented on investor relations call, dated June 2, 2025.                                               |
| 99.5    |     | Post on employee portal to Sanofi employees, dated June 2, 2025                                                    |
| 99.6    |     | Investor Relations call transcript, dated June 2, 2025                                                             |