X0306 4 2021-10-26 0 0001041803 PRICESMART INC PSMT 0001883587 Maslowski Nicolas 9740 SCRANTON RD SAN DIEGO CA 92121 0 1 0 0 EVP-Member Experience Common Stock, $0.0001 par value per share 2021-10-26 4 A 0 3800 0.00 A 19350 D Common Stock, $0.0001 par value per share 2021-10-20 4 F 0 1490 79.26 D 17860 D Represents performance stock units as to which performance criteria were determined to have been met on October 26, 2021 and as to which time-vesting occurred on October 26, 2021. Not applicable. Represents the withholding of restricted stock to satisfy the reporting person's tax withholding obligation upon the vesting of shares under performance stock units. /s/ Francisco Velasco as Attorney-in-fact 2021-10-28