Company: STAA
Filing Date: 2025-11-17
Form Type: DEFA14A
Source: 0001193125-25-284603
Chunk: 21

Company: STAAR SURGICAL CO
Filing Date: 2025-11-17
Form: DEFA14A
Chunk 21
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 the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or
otherwise, will be contained in other relevant materials to be filed with the SEC in respect of the proposed transaction when they become available.

15

Annex A

Execution Version

AMENDMENT NO. 1

TO

AGREEMENT AND PLAN OF MERGER

This Amendment No. 1, dated as of November 7, 2025 (this “”), to the Agreement and Plan of Merger, dated
as of August 4, 2025 (the “”), is by and among Alcon Research, LLC, a Delaware limited liability company (“”), Rascasse Merger Sub, Inc., a Delaware corporation and a wholly owned direct
subsidiary of Parent (“”), and STAAR Surgical Company, a Delaware corporation (the “”). Capitalized terms used and not defined in this Amendment shall have the meanings ascribed to such terms in
the Agreement.

WHEREAS, on August 4, 2025, the parties entered into the Agreement, pursuant to which, among other things, and
subject to the terms and conditions therein, Merger Sub will merge with and into the Company, with the Company surviving as a wholly owned direct subsidiary of Parent; and

WHEREAS, pursuant to and in accordance with Section 9.1 of the Agreement, the Parties desire to amend the Agreement as set forth in this
Amendment.

NOW, THEREFORE, in consideration of the mutual agreements set forth in the Agreement and this Amendment, and for other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree as follows:

1.
. The Agreement is hereby amended as follows:

(a) The proviso at the end of the first sentence of Section 5.3(a) of
the Agreement is hereby amended and restated as follows:

“provided, that the Company shall convene and hold
the Stockholder Meeting as promptly as practicable after the termination or expiration of the Go-Shop Period.”

(b) The end of the second sentence of Section 5.3(a) of the Agreement from and after clause (v) is hereby amended and restated as
follows:

“(v) if required by applicable Legal Requirements or (vi) if the Board of Directors has determined in
good faith, in consultation with financial advisors and outside legal counsel, that an Acquisition Proposal (which Acquisition Proposal has not been withdrawn prior to such adjournment or