Company: STAA
Filing Date: 2025-08-05
Form Type: DEFA14A
Source: 0001193125-25-173098
Chunk: 5

Company: STAAR SURGICAL CO
Filing Date: 2025-08-05
Form: DEFA14A
Chunk 5
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 and the Company issued a joint press release announcing entry into the Merger Agreement. A copy of the joint press release is attached as Exhibit 99.1 to this report and incorporated by reference.

| Item 9.01 | Financial Statements and Exhibits |

(d) Exhibits

| Exhibit 
 No.     
 2.1     
 99.1    |     | Description of                                                                                                                                   
 Exhibit                                                                                                                                          
 Agreement and Plan of Merger, dated as of August 4, 2025, by and among STAAR Surgical Company, Alcon Research, LLC and Rascasse Merger Sub, Inc. 
 Joint press release of Alcon and the Company, dated August 5, 2025                                                                               |
|:--------|:----|:-------------------------------------------------------------------------------------------------------------------------------------------------|
| 104     |     | Cover Page Interactive Data File (embedded within the Inline XBRL document)                                                                      |

* * *

Additional Information About the Merger and Where to Find It

This report relates to the proposed transaction involving the Company. In connection with the proposed transaction, the Company will file relevant materials
with the U.S. Securities and Exchange Commission (the “SEC”), including the Company’s proxy statement on Schedule 14A (the “Proxy Statement”). This report is not a substitute for the Proxy Statement or any other document
that the Company may file with the SEC or send to its stockholders in connection with the proposed transaction. BEFORE MAKING ANY VOTING DECISION, STOCKHOLDERS OF THE COMPANY ARE URGED TO READ ALL RELEVANT DOCUMENTS FILED OR TO BE FILED WITH THE
SEC, INCLUDING THE PROXY STATEMENT, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS THERETO, IN CONNECTION WITH THE PROPOSED TRANSACTION WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Investors
and security holders will be able to obtain the documents (when available) free of charge at the SEC’s website, www.sec.gov, or by visiting the Company’s investor relations website, https://investors.staar.com.

No Offer or Solicitation

This report is for
informational purposes only and is not intended to and does not constitute, or form part of, an offer, invitation or the solicitation of an offer or invitation to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of any
securities, or the solicitation of any vote or approval in any jurisdiction, pursuant to the proposed transaction or otherwise, nor