Company: STAA
Filing Date: 2025-11-07
Form Type: DEFA14A
Source: 0001193125-25-271794
Chunk: 3

Company: STAAR SURGICAL CO
Filing Date: 2025-11-07
Form: DEFA14A
Chunk 3
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 constitutes or could reasonably be expected to lead to or result in a Superior Offer and has notified Alcon in writing of such determination prior to the expiration of the go-shopperiod; provided, however, that any such person (or group of persons) will immediately cease to be a Qualified Bidder immediately upon the expiration in accordance with its terms, or withdrawal (but not, for the avoidance of doubt, a modification), of any Acquisition Proposal submitted by such person (or group of persons). The foregoing description of the Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Amendment, which is filed as Exhibit 2.1 to this report and is incorporated herein by reference. A copy of the Amendment has been included to provide investors with information regarding its terms and is not intended to provide any factual information about the Company, Alcon or Merger Sub.

| Item 8.01. | Other Events. |

In connection with the Amendment, on November 7, 2025, the Company issued a press release announcing that the special meeting of Company stockholders to vote upon, among other things, a proposal to adopt the Merger Agreement, which was previously postponed to December 3, 2025, has been further postponed to December 19, 2025 at 8:30 a.m. Pacific Time. The record date for the meeting remains the close of business on October 24, 2025. Company stockholders who hold shares as of the record date will be eligible to vote those shares at the special meeting on December 19, 2025. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-Kand is incorporated herein by reference. -2-

| Item 9.01. | Financial Statements and Exhibits. |

| Exhibit 
 No.     
 2.1     
 99.1    |     | Description of                                                                                                                                             
 Exhibit                                                                                                                                                    
 Amendment No. 1 to Agreement and Plan of Merger, dated November 7, 2025, between STAAR Surgical Company, Alcon Research, LLC and Rascasse Merger Sub, Inc. 
 Press Release, dated November 7, 2025                                                                                                                      |
|:--------|:----|:-----------------------------------------------------------------------------------------------------------------------------------------------------------|
| 104     |     | Cover Page Interactive Data File (embedded within the Inline XBRL document).                                                                               |

Additional Information About the Merger and Where to Find It This communication relates to