X0306 4 2012-11-16 0 0001125259 CARNIVAL PLC CUK 0001250969 ETERNITY FOUR TRUST C/O NORTHERN TRUST COMPANY OF DELAWARE 1201 MARKET STREET, SUITE 1202 NEWCASTLE DE 19801 0 0 1 0 Trust shares (interest in special voting share) 2012-11-16 4 S 0 493013 37.4417 D 60549144 D Trust shares (interest in special voting shares) 2012-11-19 4 S 0 466764 38.0868 D 60082380 D Represents trust shares (the "Trust Shares") of beneficial interests in P&O Princess Voting Trust (the "Trust"). In connection with the dual listed company transaction between Carnival plc (fka P&O Princess Cruises plc) and Carnival Corporation (the "DLC Transaction"), Carnival plc issued one special voting share to the Trust and, following a series of transactions, the Trust Shares were distributed to holders of common stock of Carnival Corporation (the "Carnival Corporation Common Stock"). Since completion of the DLC Transaction on April 17, 2003, if Carnival Corporation issues Carnival Corporation Common Stock to a person, the Trust will issue an equivalent number of Trust Shares to such person. The Trust Shares are paired with shares of Carnival Corporation Common Stock and are represented by the same stock certificate. The Trust Shares represent a beneficial interest in the Carnival plc special voting share. These shares were sold pursuant to a Rule 10b5-1(c) sales plan dated November 12, 2012, relating to the sale of up to 6,551,195 shares of Carnival Corporation Common Stock. This transaction was executed in multiple trades at prices ranging from $37.00 to $37.99. The price reported above reflects the weighted average purchase prices on the dates indicated. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $37.8150 to $38.35. The price reported above reflects the weighted average purchase prices on the dates indicated. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. /s/ John J. O'Neil, attorney-in-fact 2012-11-20