X0306 4 2022-10-19 0 0001041803 PRICESMART INC PSMT 0001535066 Bahrambeygui Sherry S. 9740 SCRANTON ROAD SAN DIEGO CA 92121-1745 1 1 0 0 Chief Executive Officer Common Stock, $0.0001 par value per share 2022-10-19 4 A 0 33630 0.00 A 205548 D Common Stock, $0.0001 par value per share 2022-10-26 4 F 0 13242 63.06 D 192306 D Common Stock, $0.0001 par value per share 43728 I By Hosey Family Trust Common Stock, $0.0001 par value per share 1000 I By son Common Stock, $0.0001 par value per share 1000 I By son Represents performance stock units as to which target and over-achievement performance criteria were determined to have been met on October 19, 2022. The PSUs remain subject to time-based vesting. 11,210 shares vest on October 26, 2022, 11,210 shares vest on October 26, 2023 and 11,210 shares vest on October 26, 2024, subject to continued service or acceleration of vesting as provided in award agreement. Not applicable Represents the withholding of stock to satisfy the reporting person's tax withholding obligation upon the vesting of performance stock units. The reported securities are owned directly or indirectly by the Hosey Family Trust of which the Reporting Person is co-trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein. The reported securities are held in a joint account in the name of the Reporting Person and the Reporting Person's son. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein. /s/ Francisco Velasco as Attorney-in-fact 2022-10-28