X0306 4 2021-11-21 0 0001821806 Leslie's, Inc. LESL 0001664854 Baker Paula 2005 EAST INDIAN SCHOOL ROAD PHOENIX AZ 85016 0 1 0 0 Chief Revenue Officer Common Stock, par value $0.001 per share 2021-11-21 4 M 0 70505 0.00 A 221676 D Common Stock, par value $0.001 per share 2021-11-22 4 S 0 25156 20.70 D 196520 D Restricted Stock Units 0.00 2021-11-21 4 M 0 70505 0.00 D Common Stock 70505 141012 D Represents shares of Common Stock automatically sold by a third party equity administrator to satisfy tax liability upon settlement of restricted stock units ("RSUs"). Each RSU represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's Common Stock. Represents a grant of RSUs, of which 70,505 RSUs vested on November 21, 2021 and of which the remaining 141,012 RSUs will vest in two equal annual installments on November 21st of each of 2022 and 2023, subject to Ms. Baker's continuous employment or service with the Issuer or an affiliate until the applicable vesting date. /s/ Brad A. Gazaway, as Attorney-in-Fact for Paula F. Baker 2021-11-23