Company: STAA
Filing Date: 2025-08-05
Form Type: DEFA14A
Source: 0001193125-25-173111
Chunk: 1

Company: STAAR SURGICAL CO
Filing Date: 2025-08-05
Form: DEFA14A
Chunk 1
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 companies and a mutual commitment to                                                                                                                  
 transformational innovation will allow for the rapid development of new products and commercial innovation thereby enabling STAAR to stay at the forefront of the rapidly shifting landscape of Ophthalmology. |

| • |     | Employee opportunities: We believe that being part of a larger, more diversified organization will allow for 
 professional development and diverse experiences for team members.                                           |

We believe this marks an exciting next chapter for STAAR. Please take a moment to read the full press release https://investors.staar.com/news-and-events/press-releases. We know you will have questions. On our intranet, you will also find an employee Q&A document to help address common questions. Please note this is for internal use only and should not be shared externally or with customers. https://staarus.sharepoint.com/sites/STAARNET We will keep you updated as we progress toward the closing of this transaction. The following information is available at this stage:

| • |     | Operations will continue as they are for the immediate future and until close of the transaction. |

| • |     | Integration Process: A detailed integration plan will be developed with our leadership team and the Alcon                           
 leadership team. This process will take time, and employees will be kept informed as decisions are made and details become clearer. |

| • |     | Ongoing Communication: Regular updates will be provided by the management team via email and other                                                    
 appropriate channels. Dedicated channels for questions and feedback will also be established as we want you to feel supported during this transition. |

The acquisition marks a new chapter of opportunity for STAAR, and the company is excited to embark on this journey. That said, until the transaction closes, both companies will continue to operate as separate companies with business as usual. As such, it is important that you do not reach out to Alcon associates at this time. I appreciate the dedication and professionalism of our STAAR employees as we move forward. Thank you for your continued commitment.

Sincerely, Stephen C. Farrell Chief Executive Officer EMPLOYEE Q&A Topic: Alcon’s Intent to Acquire STAAR Surgical Company

Employee Q&A: Deal Rationale & Details What was announced? What are the terms of this transaction?

| • |     | STAAR has entered into a definitive agreement to be acquired by Alcon. |

| • |     | Under the terms of the agreement, Alcon will acquire all the outstanding shares of STAAR common stock for $28.00 
 per share in cash