Filed by Carnival
Corporation
Pursuant to Rule 425
under the Securities Act of 1933,
as amended
and deemed filed
pursuant to Rule 14a-12
under the Securities Exchange
Act of 1934, as
amended
Commission File
No.: 001-9610
The following is an excerpt from an email from Josh Weinstein,
Chief Executive Officer of Carnival Corporation & plc, sent to employees of Carnival Corporation and Carnival plc on
December 19, 2025.
SUBJECT: Message from Josh Weinstein: 4Q & FY 2025
Earnings
| · | Unifying
our structure to unlock more value. While our teams keep enchanting guests and breaking
records, we’re also taking smart steps behind the scenes to help us further elevate
our business. We’re proposing to simplify our corporate structure by unifying our
dual-listed company (DLC) framework into a single NYSE listing—with one global
share price—under Carnival Corporation, with Carnival plc as our UK subsidiary. We
also plan to shift our legal incorporation from Panama to Bermuda, a respected international
financial hub. These updates will streamline our legal structure and cut administrative costs,
but they won’t change how we operate or how you do your job. All ships, brands, leaders,
roles and commitments continue business as usual. HR will keep equity program participants
updated, and you can learn more at CarnivalCorp.com/unify1. |
1 The information contained on our website is not incorporated
into this document.
Important Information for Investors and Stockholders
In connection with the proposed unification and
redomiciliation transactions, Carnival Corporation plans to file with the Securities and Exchange Commission (“SEC”) a Registration
Statement on Form S-4, containing a Proxy Statement/Prospectus relating to the proposed transactions (collectively, the “Proxy
Statement”), and Carnival plc plans to file the Proxy Statement with the SEC. Investors and securityholders of Carnival Corporation
and Carnival plc are urged to read the Registration Statement, the Proxy Statement and any other relevant documents filed with the SEC
when they are available, because they contain, or will contain, important information about Carnival Corporation and Carnival plc, the
proposed transactions and related matters. The final Proxy Statement will be mailed to shareholders of Carnival Corporation and Carnival
plc. Investors and securityholders of Carnival Corporation and Carnival plc will be able to obtain copies of the Registration Statement
and the Proxy Statement, when they become available, as well as other filings with the SEC that will be incorporated by reference into
such documents, containing information about Carnival Corporation and Carnival plc, without charge, at the SEC’s website (http://www.sec.gov).
The release, publication or distribution of this communication in certain jurisdictions may be restricted by law and therefore persons
in such jurisdictions into which this communication is released, published or distributed should inform themselves about and observe
such restrictions. Any failure to comply with any such restrictions may constitute a violation of the securities laws of any such jurisdiction.
No Offer or Solicitation
This communication does not constitute an offer
to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor shall there be any sale
of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification
under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the
requirements of Section 10 of the Securities Act of 1933, as amended. This communication shall not constitute or form the basis
of, and should not be relied on in connection with, any contract or investment decision in relation to the securities of Carnival Corporation
or Carnival plc or any other entity.
Participants in the Solicitation
Carnival Corporation, Carnival plc and their
respective directors and executive officers and other members of management and employees may be deemed to be participants in the solicitation
of proxies from Carnival Corporation’s and Carnival plc’s shareholders in respect of the proposed transactions under the
rules of the SEC. Information regarding Carnival Corporation’s and Carnival plc’s directors and executive officers is
available in Carnival Corporation’s and Carnival plc’s joint Annual Report on Form 10-K for the year ended November 30,
2024 and Carnival Corporation’s and Carnival plc’s joint proxy statement, dated February 28, 2025, for its 2025 annual
meeting of stockholders, which can be obtained free of charge through the website maintained by the SEC at http://www.sec.gov. Any changes
in the holdings of Carnival Corporation’s securities by Carnival Corporation’s directors or executive officers or Carnival
plc’s securities by Carnival plc’s directors or executive officers from the amounts described in Carnival Corporation’s
and Carnival plc’s 2025 joint proxy statement have been reflected in Statements of Change in Ownership on Form 4 filed with
the SEC subsequent to the filing date of Carnival Corporation’s and Carnival plc’s 2025 joint proxy statement and are available
at the SEC’s website at www.sec.gov. Additional information regarding the interests of such participants will be included in the
Registration Statement, the Proxy Statement and other relevant materials to be filed with the SEC when they become available.
Cautionary Statement Regarding Forward-Looking Information
This communication contains statements herein
regarding the proposed unification and redomiciliation transactions, future financial and operating results, benefits of the transactions
and any other statements about future expectations that constitute forward-looking statements within the meaning of the Private Securities
Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of
1934. All statements in this communication, other than statements of historical fact, are forward-looking statements that may be identified
by the use of words “anticipate,” “believe,” “could,” “estimate,” “expect,”
“intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,”
“target,” “will,” “would” and, in each case, their negative or other various or comparable terminology.
Such forward-looking statements are based upon current beliefs, expectations and discussions related to the proposed unification and
redomiciliation transactions and are subject to significant risks and uncertainties that could cause actual results to differ materially
from the results expressed in such statements. There are a number of important factors that could cause actual results or events to differ
materially from those indicated by such forward looking statements, including: the ability to obtain governmental and court approvals
of the transactions on the proposed terms and schedule, the failure of Carnival Corporation and Carnival plc shareholders to approve
the transactions, the effects of industry, market, economic, political or regulatory conditions outside of the parties’ control
and the parties’ ability to achieve the benefits from the proposed transactions. Additional factors that may affect future results
are contained in Carnival Corporation’s and Carnival plc’s filings with the SEC, including Carnival Corporation’s and
Carnival plc’s most recent joint Annual Report on Form 10-K, as it may be updated from time to time by quarterly reports on
Form 10-Q and current reports on Form 8-K, all of which are available at the SEC’s website http://www.sec.gov. The information
set forth herein speaks only as of the date hereof, and, except to the extent legally required, any intention or obligation to update
any forward-looking statements as a result of developments occurring after the date hereof is hereby disclaimed.