X0306 4 2020-04-09 0001125259 CARNIVAL PLC CUK 0001553147 Thamm Michael Olaf C/O CARNIVAL CORPORATION 3655 N.W. 87TH AVENUE MIAMI FL 33178 1 Group CEO - Costa Crociere Ordinary Shares 2020-04-09 4 A 0 19270 11.9339 A 106661.207 D The grant, which reflects the reporting person voluntarily deferring their salary for April to June 2020 in the form of restricted stock units ("RSUs") as described in FN2, was approved by the Compensation Committee. The number of RSUs was determined by dividing the deferred salary by the closing price of a share of Carnival Corporation common stock on April 9, 2020, then rounding down to the nearest whole share. Issued pursuant to the Carnival Corporation 2020 Stock Plan. The restriction on the RSUs lapses on February 12, 2021. The transaction was conducted in British Pounds. The grant price of GBP 9.66 was converted into US$ at the April 9, 2020 conversion rate of GBP1 = USD1.23539. Includes shares acquired pursuant to the dividend reinvestment feature of the reporting person's brokerage account. /s/ Michael O. Thamm 2020-04-13