Company: STAA
Filing Date: 2025-09-30
Form Type: DEFA14A
Source: 0001193125-25-224160
Chunk: 0

Company: STAAR SURGICAL CO
Filing Date: 2025-09-30
Form: DEFA14A
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box:

| ☐ | Preliminary Proxy Statement |

| ☐ | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |

| ☐ | Definitive Proxy Statement |

| ☒ | Definitive Additional Materials |

| ☐ | Soliciting Material under § 240.14a-12 |

STAAR SURGICAL COMPANY (Name of Registrant as Specified In Its Charter) (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check the appropriate box):

| ☒ | No fee required. |

| ☐ | Fee paid previously with preliminary materials. |

| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a6(i)(1) and 0-11. |

On September 30, 2025, Alcon and STAAR Surgical Company issued the following press release:

Alcon and STAAR Surgical Announce Expiration of Hart-Scott-Rodino Waiting Period for Alcon’s Acquisition of STAAR

GENEVA and LAKE FOREST, CA, September30, 2025 –Alcon (SIX/NYSE: ALC), the global leader in eye care dedicated to
helping people see brilliantly, and STAAR Surgical Company (NASDAQ: STAA) (“STAAR”), the manufacturer of the Implantable Collamer Lens (ICL), today announced that the waiting
period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (HSR), in connection with Alcon’s acquisition of STAAR, expired at 11:59 p.m. ET on September 29, 2025.

As previously announced, under the terms of the agreement, Alcon will purchase all outstanding shares of STAAR common stock for $28 per share in cash, which
represents approximately a 59% premium to STAAR’s 90-day volume weighted average price and a 51% premium to the closing price of STAAR common stock on August 4, 2025 (the day